Brenda needs to solve the system of linear equations below for her homework assignment. y = 9x – 70 y = 2x – 32 Which is a reasonable estimate of the solution to this system of linear equations?

Answers

Answer 1

Step-by-step explanation:

We have y = 9x - 70 and y = 2x - 32.

=> 9x - 70 = 2x - 32

=> 7x = 38

=> x = 38/7 which is around 5.43.

Answer 2

Answer:

Equations are :--- y = 9x – 70 and y = 2x – 32

Substituting the value of y, we get

[tex]9x - 70 = 2x - 32 \\ 7x = 38 \\ x = \frac{38}{7} \\ \boxed{x = 5.43} \\ y = 9x - 70 \\ y = 9( \frac{38}{7} ) - 70 \\ \boxed{ y = - 21.14}[/tex]


Related Questions

Roger wants to have 400 copies of his resume printed. The first print shop Roger calls charges $21.50 for the first 200 copies and $10 for every 100 additional copies. The second print shop charges $0.15 per copy and has no deals on bulk

1.How much will it cost Roger at the first print shop?
2. How much will it cost Roger at the second print shop?
3. Which option is a better deal? How much will Roger save?
Please help!!!!:/

Answers

Answer:

3. I would say shop one because it's at a lower price.  Although, it is up to you.

Step-by-step explanation:

Roger wants 400 copies; First print shop; $21.50 for first 200 copies + $10 for every 100 additional copies. Second print shop; $0.15 per copy + no deals on bulk  

1. how much will cost roger at the first print shop?  

$21.50 + $20 = $41.50 for 400 copies  

2. how much will it cost roger at the second print shop?  

$0.15 x 400 = $60

Consider the triangle at the right.
Which angle is the smallest?

A. angle A
B. angle B
C. angle CImmersive Reader

Answers

Answer:

The answer is C.

Step-by-step explanation:

It adds the smallest amount of numbers. :)

I did it and the answer is C

what is the common different of this arithmetic sequence ?

Answers

Answer:

-4

Step-by-step explanation:

-7 minus 4 equals -11

-11 minus 4 equals -15

think about the process the relationship between x and y is represented by the equation y=19x how can you decide if the equation represents a porportianl relatingjip

Answers

Answer:

Since the value is always multiplied by the same factor(19), the relationship is proportional.

Step-by-step explanation:

To see if the equation represents a proportional relationship, we see if the division of y by x is always the same

[tex]x = 1, y = 19*1 = 19[/tex]

[tex]x = 2, y = 19*2 = 38[/tex]

[tex]x = 3, y = 19*3 = 57[/tex]

So

[tex]\frac{57}{3} = \frac{38}{2} = \frac{19}{1} = 19[/tex]

Equal, so proportional

7
Find the GCF of the pair of monomials.
32a,48a

Answers

Answer:

The greatest common factor (GCF) of these two monomials is [tex]16\, a[/tex].

Step-by-step explanation:

Rewrite [tex]32\, a[/tex] and [tex]48\, a[/tex] as the products of the variable [tex]a[/tex] and and prime number factors:

[tex]32\, a = 2 \times 2 \times 2 \times 2 \times 2 \times a = 2^{5}\times a[/tex] (where [tex]2[/tex] is a prime factor.)[tex]48\, a = 2 \times 2\times 2 \times 2 \times 3\times a = 2^{4}\times 3\times a[/tex] (where [tex]2[/tex] and [tex]3[/tex] are both prime factors.)

Write an expression for the GCF of these two monomials in terms of these factors ([tex]2[/tex]'s, [tex]3[/tex], and [tex]a[/tex].) Try to include as many of each factor as possible, as long as the resulting product is present in both monomials.

For example, there are five factor [tex]2[/tex]'s in the first monomial but only four in the second monomial. Therefore, include the factor [tex]2\![/tex] in the GCF for only four times.

The factor [tex]a[/tex] appeared once in both monomials. Hence, include [tex]a\![/tex] for one in the expression for the GCF.

On the other hand, the factor [tex]3[/tex] is found in the second monomial but not in the first. Therefore, this factor should not be included in the expression for the GCF.

Therefore, the expression for the GCF would be:

[tex]2 \times 2\times 2\times 2 \times a = 16\, a[/tex].

In Chapter 4 #25, you compared the distributions of innings per game for 24 starting pitchers in 1958 and 99
starting pitchers in 2008. Do the data provide convincing evidence that pitchers in 1958 had a greater ability to
stay in games?
a. State the hypotheses we are interested in testing.
b. The mean innings per game in 1958 was 6.70 and the mean innings per game in 2008 was 6.05 for a test
statistic of 6.70 – 6.05 = 0.65. Describe how to simulate the distribution of the test statistic, assuming that
pitchers in both years have the same ability to stay in games.
c. A simulation was conducted assuming that pitchers both years have the same ability to stay in games. In each
of the 100 trials, the difference in means was calculated and recorded on the dotplot below. Use the dotplot to
estimate and interpret the p-value.
d. Based on the p-value, make an appropriate conclusion.
e. If there is convincing evidence that pitchers in 1958 did have a greater ability to stay in games, does that mean
today’s pitchers are wimpier? What other possible explanations could there be?

Answers

5. In Chapter 4 #25, you compared the distributions of innings per game for 24 starting pitchers in 1958 and 99 starting pitchers in 2008. Do the data provide convincing evidence that pitchers in 1958 had a greater ability to stay in games?

a. Ha Pitchers in 1958 had the same ability to stay in games

  Ha Pitchers in 1958 had a greater ability to stay in games

b. I don't know how to do this one

c. The P value is 0%

d. Since the P value is 0%

e. Since the P value is 0% we reject the null hypothesis and except alternative hypothesis. The alternative hypothesis being that the pitchers in 1958 had a greater ability to stay in games

P.s you should try looking up calculators for this stuff

P.s.s my teacher gave me this pdf of the answers

Myra combined the like terms in the algebraic expression correctly.

Which statement correctly describes what Myra did?

8x^2 + 7-2x^2 + x

•Myra combined 8 and -2 to equal 6x2 +x+7- O

•Myra combined 8 and 2 to equal 10x2 +%+7

•Myra combined 8 and 7 to equal 15x2 - 2x + X-

•Myra combined 8 and 1 to equal gx2 - 2x2 +7-

(edge2020).​

Answers

The answer would be the first one, combining 8 and -2

This is because the 2 like terms are 8x^2 and -2x^2. You can get this by looking in the problem. There are 2 terms with x^2 which means we have to combine them. One of them is 8x^2 (the 1st one) and the other is -2x^2 (since it says 7-2x^2)

If you combine these you will get 6x^2 [8+(-2)=6]

Answer:

Myra combined the like terms in the algebraic expression correctly. Which statement correctly describes what Myra did?

8 x squared + 7 minus 2 x squared + x

Myra combined 8 and Negative 2 to equal 6 x squared + x + 7.

Step-by-step explanation:

Determine whether each quadrilateral is a parallelogram. Justify your answer. Yes/No? Reason... opposite side congruent, opposite angles congruent, opposite sides parallel, diagonals bisect each other, one pair of parallel and congruent sides, not enough information? (look at the image)

Answers

Answer:

Yes! The given quadrilateral represents Parallelogram.

Reason: The given quadrilateral has opposite sides congruent.

Step-by-step explanation:

Given the quadrilateral with the four vertices.

Now in order to determine whether the given quadrilateral is a parallelogram or not, we need to check whether the opposite sides are congruent or not.

It is clear that the given quadrilateral has opposite sides congruent.

Therefore, the given quadrilateral represents Parallelogram.

Hence,

Yes! The given quadrilateral represents Parallelogram.

Reason: The given quadrilateral has opposite sides congruent.

Please look at the picture

Answers

Answer:

1.5

Step-by-step explanation:

Vertical angles are congruent so:

7x=8x-12

Subtract 7x from both sides:

0=8x-12

Add 12 to both sides:

8x=12

Divide both sides by 8:

x=1.5 or

x= 3/2

The ratio of oil to vinegar in a certain salad dressing is 8 : 5. How much oil must be blended with 7 liters of vinegar for that recipe?

Answers

Answer:

1:4

Step-by-step explanation:

hope it help

A baker used 4/8 cup of flour to make 5/13 of a recipe. How much flour would the baker use to make the whole recipe?
Group of answer choices

10/13

3/7

1_3/10

5/26

Answers

Answer:

A

Step-by-step explanation:

its just some rounding

A store sells cans of tomatoes priced as shown.
Canned Tomatoes
Size
Cost
10 ounces
$0.89
15 ounces
$1.29
18 ounces
$2.26
32 ounces
$3.39
Which size can of tomatoes has the lowest cost per ounce?
1.
10 ounces
2.
15 ounces
3.
18 ounces
4.
32 ounces

Answers

Answer:

For your question its 15 ounces

what is half 7minutes and 24 seconds​

Answers

The answer is 222 seconds or 3 minutes and 42 seconds

Answer:

3 minutes and 42 seconds

Step-by-step explanation:

So I would convert that minute into seconds

7*60=420

So 420+24=444

Divide by 2

444/2=222

Now divide by 60 to convert it back to minutes

222/60= 3.7

3.7 minutes or

7/10*60=42

3 minutes and 42 seconds

Describe the relationship between the terms in each arithmetic sequence. Then write the next three terms in each sequence.



B

0, 5, 10, 15, …

a.
2 is added to each term; 17, 19, 21

b.
5 is added to each term; 20, 25, 30

c.
5 is added to each term; 25, 30, 35

d.
10 is added to each term; 25, 35, 45

Answers

Answer:

Answer b)

Step-by-step explanation:

In the sequence 0, 5, 10, 15,...

5 is added to each term in order to get the next one. Therefore the next three terms would be; 20, 25, 30.

This agrees with answer b) in the list of possible answers.

Simplify the expression.
(-3/4p)^3

Answers

Answer:

hope this helps

Step-by-step explanation:

The required, simplified expression is -27/64 * p³, as of the given expression

Simplify the expression: (-3/4p)³

To simplify, we raise the expression to the power of 3:

(-3/4p)³ = (-3/4p) * (-3/4p) * (-3/4p)

Simplifying further:

(-3/4)³ * (p³) = -27/64 * p³

Therefore, the simplified expression is -27/64 * p³,  as of the given expression.

Learn more about simplification here:

https://brainly.com/question/23509407

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Fill in the blank with the correct response. Given ∠1=∠2, find x.

Answers

Answer:

x = 6

Step-by-step explanation:

Since, ∠1 ≅ ∠2

By angle bisector theorem,

[tex]\frac{AB}{BD}=\frac{AC}{CD}[/tex]

By substituting the measures of each side in the given ratio of the sides,

[tex]\frac{3}{x-4}=\frac{x}{4}[/tex]

12 = x(x - 4)

12 = x² - 4x

x² - 4x - 12 = 0

x² - 6x + 2x - 12 = 0

x( x - 6) + 2(x - 6) = 0

(x + 2)(x - 6) = 0

x = -2, 6

Since, measure of the sides can't be negative, x can not be negative.

Therefore, x = 6 will be the answer.

Answer:

x = 6

Step-by-step explanation:

Helppp i don't understand this at all and i need the answer fast

Answers

Answer:

i asked my mom and she said "Solution: 108"

108 the positive number

I would appreciate if someone would help me

Answers

Answer:

x = 12

Step-by-step explanation:

We know that the integers are consecutive. This means that they can be written as:

x, x + 1, and x+2.

First Integer: x

Second Integer: x + 1

Third Integer: x + 2

It is also given that the sum of the first integer and twice the second is 80 minus three times the third.

Write as an equation:

First Integer + 2(Second Integer) = 80 - 3(Third Integer)

Substitute:

x + 2(x+1) = 80 - 3(x+2)

Multiply:

x + 2x + 2 = 80 - 3x - 6

Simplify:

3x + 2 = 74 - 3x

Add 3x to both sides of the equation:

6x + 2 = 74

Subtract 2 from both sides of the equation:

6x = 72

Divide both sides of the equation by 6:

x = 12

Let me know if you have any questions about my explanation!

Answer:

Smallest Integer = 12

Step-by-step explanation:

According to question ,

• First Integer → x

• Second Integer → x + 1

• Third Integer → x + 2

Now question says that the sum of the first and twice the second is 80 minus three times the third that means ,

→ x + 2 ( x + 1 ) = 80 - 3 ( x + 2 )

→ x + 2x + 2 = 80 - 3x - 6

→ 3x + 2 = -3x + 74

→ 3x + 3x = 74 - 2

→ 6x = 72

→ x = 72/6

→ x = 12

Hence , value of x is 12 that means :

→ x = First Integer = 12

→ x + 1 = Second Integer = 13

→ x + 2 = Third Integer = 14

In all of these x is the smallest integer and hence 12 is the correct answer .

Question Progress
Homework Progress
85%
Vol =
1/3
x base area x ht
The pyramid below has a rectangular base and E
is directly above A.
Find the volume of the pyramid.
E
10 cm
С
A
4 cm
9 cm
B

Answers

Answer:

Step-by-step explanation:

84% Vol =

3

x base area x ht

The pyramid below has a rectangular base and E

is directly above A.

Express 4037 in standard form​

Answers

Answer:

Step-by-step explanation:

4037 in standard form

4037=4.037*10^3

6= 24/x
Solve for x.

Answers

Answer:

X=4 this is the Answer good luck

first you will group like terms (that is, the numbers or letter that are the same)

x=24-6 =18

x is the only letter

A line has a slope of 5 and passes through the point (1, 0). What is its equation in
slope-intercept form?

Answers

Answer:

y=5x-5

Step-by-step explanation:

find y-intercept:

0=1(5)+b

b=-5

Answer:

y = 5x - 5

Step-by-step explanation:

y = mx + b

m = 5

b = ?

Plug in the coordinates

0 = 5(1) + b

0 = 5 + b

-5 = b

Finally:

y = 5x - 5

There are 11.7 grams of protein in 3 ounces of popcorn. About how many grams of protein are in each ounce of popcorn?

Answers

Answer:

about 4 grams

Step-by-step explanation:

Divide the amount of grams by amount of ounces.

11.7 / 3

= 3.9

3.9 is about 4 grams of protein

practical and fractional 5/9 - 2/6 ==

Answers

2/9 just subtract them for each other
5/9 - 2/6
2/6 is the same as 1/3 which is the same as 3/9
5/9 - 3/9 is 2/9 because you take away the numerators (top) from each other and keep the bottom the same
I hope this helps! if it did i love it if you could give me brainliest to help me work towards my next level :)

PLZ HELP 30 POINTS PLZ INCLUDE EXPLANATION

Answers

Answer:

m = 0

Step-by-step explanation:

1/2(-1.4m+0.4)=m+0.2

We move all terms to the left:

1/2(-1.4m+0.4)-(m+0.2)=0

Domain of the equation: 2(-1.4m+0.4)!=0

m∈R

We get rid of parentheses

1/2(-1.4m+0.4)-m-0.2=0

We multiply all the terms by the denominator

-m*2(-1.4m+0.4)-(0.2)*2(-1.4m+0.4)+1=0

Wy multiply elements

-2m^2(--(0.2)*2(-1.4m+0.4)+1=0

We use the square of the difference formula

-2m^2(+(0.2)*2(-1.4m+0.4)+1=0

HELP URGENT WILL GIVE BRAINLIEST

Answers

Answer:

B: (x + 1) = (y - 2)²

Step-by-step explanation:

0 = y² - x - 4y + 3

We want to find the equation of the parabola in vertex form.

The format for the vertex form is;

y = a(x - h) + k

Where (h, k) is the coordinate of the vertex.

Thus, let's transform 0 = y² - x - 4y + 3 into the vertex form

Let's rearrange to get;

x - 3 = y² - 4y

Let's use method of completing the square to get right hand side;

x - 3 = (y - 2)² - 4

Add 4 to both sides to get;

x - 3 + 4 = (y - 2)²

(x + 1) = (y - 2)²

Which equation represents a line which is parallel to the line y=-4x-8y=−4x−8?

Answers

Answer:

Step-by-step explanation:

y = -4x - 8

Any equation with an equal slope will be parallel to the line

Example: y = -4x or y = - 4x + 8

As long as the equation has a different y-intercept and equal slope it will be parallel!

An equation of a line that is parallel to y = -4x - 8 would be in the form:

y = -4x + b

What is the equation of a line?

In mathematics, the equation of a line is a formula that describes the relationship between the x and y coordinates of the points on the line.

Two lines are parallel if they have the same slope. The equation of the line y = -4x - 8 is in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.

From y = -4x - 8, we can see that the slope is -4. So, any line that is parallel to this line must also have a slope of -4.

Therefore, an equation of a line that is parallel to y = -4x - 8 would be in the form:

y = -4x + b

Where b is some constant value that determines the y-intercept of the line.

To know more about an equation of the line follow

https://brainly.com/question/28750981

#SPJ3

help urgent calcus question

Answers

Answer:

Step-by-step explanation:

The awnser must be c, since you can only get a quadratic polynomial function if you derive a polinomial of the 4th degree twice. C is the only polynomial of the 4th degree here, the other ones are of the 3rd degree.

2 x pie x 93000000
——————————-
24h x 365 days

Answers

Answer:

1. ~[tex]~584040000[/tex][tex]584040000[/tex]

2. [tex]365[/tex] days

Step-by-step explanation:

First of all, it's pi, not pie. Anyways,

[tex]2*[/tex][tex]\pi * 93000000[/tex]

This is pretty simple. The answer is.... ~[tex]~584040000[/tex][tex]584040000[/tex]

[tex]24h*365days[/tex]

24 hours is equal to 1 day. So, 1 day times 365 days = 365 days.

plese help in this question plese answer today​

Answers

Answer:

Subtraction Problem                                                 Addition Problem

    3 - 7                                                                               3 + (-7)

These two match because they will give the same result which is -4 and when the addition problem is operated on, it will look like the subtraction problem.

__________________________________________________________

Subtraction Problem                                                 Addition Problem

      -3 - 7                                                                             -3 + (-7)

These two will give the same result of -10. When additional problem is worked on it becomes subtraction problem.

__________________________________________________________

Subtraction Problem                                                 Addition Problem

    -3 - (-7)                                                                             -3 + 7

These two will both give the result of 4. When subtraction problem is worked on, it becomes addition problem.

__________________________________________________________

Subtraction Problem                                                 Addition Problem

    3 - (-7)                                                                               3 + 7

Both give a result of 10. When subtraction problem is worked on, it becomes addition problem.

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