Help me solve this please

Substitute to solve

Brainliest for correct answer

Help Me Solve This Please Substitute To Solve Brainliest For Correct Answer

Answers

Answer 1

Answer:

x=-1

Step-by-step explanation:

Help Me Solve This Please Substitute To Solve Brainliest For Correct Answer
Answer 2

Answer:

x=3/5 y=-2.5

Step-by-step explanation:

3x-2y=5, first find the x value which is 3x get rid of the 2y by during 2 times ,then 5/3 since you can't lower it down keep it 5/3, after is 2y same thing you did for 2y to get rid of it you will do 3x, now is 5/2 to get 2.5 or 5/2.


Related Questions

Help me solve this problem please

Answers

Answer: A

Step-by-step explanation: If you fill in the x-intercept and the y-intercept and solve -4(2) + 20 = 12       And -4(3) + 20 = 8    

if you solve for those you would get your y-intercept

Camila started reading a 500 page book. She read of the book in hour. What is the maximum number of pages can she read in hour if she reads at the same rate?
A.
10 pages
B.
15 pages
C.
40 pages
D.
20 pages

Answers

Answer:

Need more information

Step-by-step explanation:

I need to know what percentage/fraction of the book she read in 1 hour or any other information about the rate she is reading

what number do these base ten blocks show

Answers

70 should be correct

In a final year examination, 33 students pass in Chinese, 29 students pass in English, 20 students pass in both subjects and 8 students fail in both subjects. How many students are in the class?

Answers

Answer:

50

Step-by-step explanation:

33+29= 62

62-20= 42

42+8= 50 students

F (x) = x^2 + 4x; Find f (−7)

Answers

Answer:

f(-7) = 21

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

f(x) = x² + 4x

f(-7) is x = -7

Step 2: Solve

Substitute:                    f(-7) = (-7)² + 4(-7)Evaluate:                       f(-7) = 49 + 4(-7)Multiply:                        f(-7) = 49 - 28Subtract:                       f(-7) = 21

Why can you use cross products to solve the proportion StartFraction 18 over 5 EndFraction = StartFraction x over 100 EndFraction for x?

Answers

9514 1404 393

Answer:

  it is application of the multiplication property of equality

Step-by-step explanation:

You can use "cross products" to solve any proportion. What looks like a "cross product" is just application of the multiplication property of equality. That property says the variable value is unchanged if both sides of the equation are multiplied by the same value.

For your fraction, the "cross product" is what you get when you multiply both sides of the equation by 500.

  [tex]\dfrac{18}{5}=\dfrac{x}{100}\qquad\text{given}\\\\\dfrac{18\cdot5\cdot100}{5}=\dfrac{x\cdot5\cdot100}{100}\qquad\text{multiply by $5\cdot100$}\\\\18\cdot100=5\cdot x\qquad\text{cancel common factors; looks like cross product}[/tex]

__

Note that the next step here is to divide by the x-coefficient, the 5 that was in the left-side denominator.

  [tex]\dfrac{18\cdot100}{5}=x\qquad\text{divide by 5}[/tex]

Please also note that this is exactly the same result you would get by multiplying the original equation by the original denominator of x.

A recipe says to use 3 cups of flour to make 48 cookies. How many cups of
flour are needed for 80 cookies?

Answers

5 cups are needed for 80 cookies

48/3 = 16
16x = 80
x = 5

Plz Help...
Find x in the given triangle.

Answers

Answer:

[tex]\huge\boxed{x=2\sqrt{286}}[/tex]

Step-by-step explanation:

Use the Pythagorean theorem:

[tex]leg^2+leg^2=hypotenuse^2[/tex]

We have:

[tex]leg=x\\leg=15\\hypotenuse=37[/tex]

Substitute and solve for x:

[tex]x^2+15^2=37^2\\\\x^2+225=1269\qquad|\text{subtract 225 from both sides}\\\\x^2+225-225=1269-225\\\\x^2=1144\to x=\sqrt{1144}\\\\x=\sqrt{4\cdot286}\\\\x=\sqrt4\cdot\sqrt{286}\\\\x=2\sqrt{286}[/tex]

Which set of line segments could create a right triangle?
24, 30, 35
12, 18, 30
18, 24, 30
18, 24, 35

Answers

thirdStep-by-step explanation:

Mrs. Johnson earned $31,500.00 in salary this year. Her salary will increase by 10% next year. Mrs. Johnson is paid on a monthly basis. By how much will her monthly salary increase when she receives her raise?

Answers

Answer:

34650 dollars by next year

Step-by-step explanation:

Answer:

Step-by-step explanation31500x.10. 3150. 31500+3150. 34650. 34650/12 2887.50. 31500/12. : 2625. Difference per month 262.50

select the group of numbers that are ordered least to greatest.

Answers

Answer: I think it’s the 2nd, 3rd and 4th

Step-by-step explanation:

[tex]\huge\pink{AnSwer}[/tex][tex]option \: b \: is \: the \: correct \: answer.[/tex]

Find the GCF of the following set of numbers
260, 80, 50

Answers

Answer:

10

Step-by-step explanation:

The factors of 50 are: 1, 2, 5, 10, 25, 50

The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

The factors of 260 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260

In all of these numbers, we can see that 10 is common throughout and 10 is also the greatest factor all these numbers share.

Hope this helps you :)

The answer is 10

Explanation:

Which statement would be included in the proof of why Measure of angle C + measure of angle G + measure of angle H = 180 degrees.?
A. Angles F and H are congruent.
B. Angles A and G are congruent.
C. Angles A and H are congruent.
D. Angles E and C are congruent.

Answers

I think c

Step-by-step explanation:

I did it a min ago

Answer:

ur answer would be C. Angles A and H are congruent.

Step-by-step explanation:

right on edge 2021 for math

if f(x)=10x+3 whar is the value when f(x)=19

Answers

Answer:

x = 1.6

Step-by-step explanation:

Given f(x) = 10x + 3 and f(x) = 19, then equate right sides, that is

10x + 3 = 19 ( subtract 3 from both sides )

10x = 16 ( divide both sides by 10 )

x = 1.6

Answer:

x = 1.6

Step-by-step explanation:

Given

f(x)=10x+3

and

f(x) = 19 ⇒ x = ?

Solution

10x + 3 = 1910x = 16x = 16/10x = 1.6

HELP ASAP! Relations and Functions!!! Giving brainliest!!!

Answers

Answer:

I think the answer is relation only.

Step-by-step explanation:

sorry if I'm wrong

Answer:

D

Step-by-step explanation:

b. Selena has a coupon for 15% off ice cream. If she pays $2.68 with the coupon, what was the original price of the ice cream?

Answers

$3.15 , if you took off 15% then that would be $0.47

PLEASE HELP WITH GEOMETRY

Answers

Answer:

acute triangle

Step-by-step explanation:If the square of the length of the longest side of a triangle is less than the sum of the squares of the lengths of the other two sides, then the triangle is an acute triangle.

Jack has $65 to spend on art supplies. He needs to buy an easel that costs $18. He also wants to buy some canvases that cost $11 each
Which of the following inequalities represents the amount of money Jack can spend if he buys n canvases?
A:65 >(line underneath sign)18 + 11n
B:65 > 18 + 11n
С:65 < (line underneath sign) 18 + 11n
D:65 < 18 + 11n

Answers

Answer:

C

Step-by-step explanation:

Jack can spend less than or equal to. So C is correct.

The inequality represents the given situation is 65 ≥ 18 + 11n will be correct thus, option (A) is correct.

What is inequality?

A difference between two values indicates whether one is smaller, larger, or basically not similar to the other.

In essence, a comparison of any two values reveals whether one is less than, larger than, or equal to the value on the opposite side of the equation.

As per the given,

Total budget = 65

Total spent = 18 + 11n  where n is the number of canvases.

Total spent ≤ total budget

18 + 11n ≤ 65

Hence "The inequality represents the given situation is 65 ≥ 18 + 11n will be correct".

For more about inequality,

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To solve the following system by elimination of the x terms, if the first equation were multiplied by -4, by what number would you multiply the second equation?

Answers

Answer:

6

Step-by-step explanation:

Multiply by 6 and you can eliminate x or y.

Preston bought 16 donuts. There were d donuts in each box. Choose the expression that shows how many boxes of donuts Preston bought

Answers

Answer:

What are the option?

Step-by-step explanation:

2(5x + 3) - 2(2x - 3)

Answers

Factor: 6(x + 2)

Simplify: 6x + 12

Answer:

[tex]\boxed {6x + 12}[/tex]

Step-by-step explanation:

Solve the following expression:

[tex]2(5x + 3) - 2(2x - 3)[/tex]

-Use Distributive Property:

[tex]2(5x + 3) - 2(2x - 3)[/tex]

[tex]10x + 6 - 4x + 6[/tex]

-Combine like terms:

[tex]10x + 6 - 4x + 6[/tex]

[tex]\boxed {6x + 12}[/tex] (final answer)

HELP MEE Simplify the expression : (5x + 3y) + (2x + 12y)

Answers

Answer:

7x+15y

Step-by-step explanation:

Answer:

15y+7x

Step-by-step explanation:

Simply the equation by combining like terms

Given the angle measures of a triangle are 3x + 6 degrees, 4x + 2 degrees and 10x + 2 degrees, determine the 3 angles in this triangle?

Answers

Answer:

36,42,102

Step-by-step explanation:

A triangle is 180° total so your equation to find x is:

3x+6+4x+2+10x+2=180°

17x+10=180

17x=170

x=10

to find the individual sides:

3(10)+6=36

4(10)+2=42

10(10)+2=102

to make sure this is right, add 36+42+102. It should equal 180 and it does

Two planes travel at a constant speed which plane a travels 2000 and 800 miles in five hours Plan B travels 3885 miles in seven hours which plane is faster

Answers

Answer:

Since its speed is higher, plane 1 is faster than plane 2.

Step-by-step explanation:

Comparing Speeds

The formula for the speed of an object who travels a distance d in a time t is:

[tex]\displaystyle v=\frac{d}{t}[/tex]

We have to compare the speeds of the two planes:

The first plane travels d1=2800 miles in t1=5 hours

The second plane travels d2=3885 miles in t2= 7 hours

Calculate both speeds as follows:

[tex]\displaystyle v_1=\frac{d_1}{t_1}[/tex]

[tex]\displaystyle v_1=\frac{2800}{5}[/tex]

[tex]v_1=560\ mi/h[/tex]

[tex]\displaystyle v_2=\frac{d_2}{t_2}[/tex]

[tex]\displaystyle v_2=\frac{3885}{7}[/tex]

[tex]v_2=555\ mi/h[/tex]

Since its speed is higher, plane 1 is faster than plane 2.

Someone please help me!

Answers

-1/4 i think, Y1-Y2/X1 -X2= the slope . -9-3= -12 and -6 - (-9)= -6 +9= 3. So simplify 3/-12 makes -1/4.

An earthworm times 2 cm into the ground each day the earth worm tunnels at about the same place every day how many days will it take the earthworm to tunnel 14 cm

Answers

Answer:

7 days

Step-by-step explanation:

Given that:

Distance tunneled into the ground each day = 2cm

The rate is the same everyday ;

Hence, to. Tunnel 14cm into the ground , it will take the earthworm;

1 day = 2cm

x days = 14cm

Cross multiply :

2x = 14

x = 14 /2

x = 7

Hence, it will take 7 days for the earthworm to tunnel 14cm

To add or subtract fractions, what must you have?

Answers

Answer:

You need a common denominator.

Step-by-step explanation:

3/4+2/3

9/12+8/12

Answer:

Equal denominators/common denominators

Step-by-step explanation:

You need to have equal denominators. If you do not, then you have to multiply the denominators against each other as well as multiplying the same number to the numerator. If a number is a factor of one of the numbers then multiply the number by its other factor so as to get the same number.

Ex. 1

First one explained:

2/3 + 4/5

1/3 * 5/5 = 5/15

2/5 * 3/3 = 6/15

5/15 + 6/15 = 11/15

Common denominator = 15

Ex. 2

Second one explained:

2/8 + 1/4

2/8 + 1/4*2/2 = 2/8 + 2/8

= 4/8

Common Denominator = 8

Hope this helped,

Kavitha Banarjee

Susan makes a purchase of $175 and is charged 7.75% for sales tax. What is the total cost of the purchase if Susan charges it on a credit card with a daily interest rate of 0.039% and pays the balance off at the end of 30 days? a. $176.17 b. $186.70 c. $190.77 d. $200.26

Answers

Answer:

C. 190.77

Step-by-step explanation: edge 2022

The required, total cost of the purchase is $190.77. Option C is correct.

What is the percentage?

The percentage is the ratio of the composition of value to the overall composition of value multiplied by 100.

Here,
To calculate the total cost of the purchase, we first need to calculate the amount of sales tax and add it to the original price.

Sales tax = 7.75% of $175 = 0.0775 x $175 = $13.56

Total cost of purchase = $175 + $13.56 = $188.56

If Susan charges the purchase to her credit card and pays it off after 30 days, she will be charged interest on the outstanding balance for those 30 days. The interest rate is 0.039% per day, which is equivalent to 1.17% per month (0.039% x 30).

The interest charged on the outstanding balance after 30 days will be:

Interest = $188.56 x 1.17% = $2.20

Therefore, the total cost of the purchase, including sales tax and credit card interest, will be,

Total cost = $188.56 + $2.20 = $190.76

Therefore, the total cost of the purchase is $190.77.

Learn more about percentages here:

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The rectangle below has an area of 12y^2+21y^512y 2 +21y 5 12, y, squared, plus, 21, y, start superscript, 5, end superscript. The width of the rectangle is equal to the greatest common monomial factor of 12y^212y 2 12, y, squared and 21y^521y 5 21, y, start superscript, 5, end superscript. What is the length and width of the rectangle? \text{Width} =Width=start text, W, i, d, t, h, end text, equals

Answers

Answer:

This means that the width = 3y²

The length = 4y+7y³

Step-by-step explanation:

Given

Area of the rectangle = 12y^2+21y^5

Width of the rectangle is the greatest common monomial of 12y^2 and 21y^5

First let us get the greatest common monomial of 12y^2 and 1^5

12y^2 = (3  * y * y) * 4

21y^5 = (3 * y*y)*y*y*y* 7

Hence the greatest common monomial is 3 * y * y = 3y²

Factor out 3y² from the area function;

12y^2+21y^5

3y² (4y+7y³) = Area of the rectangle

Length * Width = 3y² (4y+7y³)

On comparing both sides of the equation

This means that the width = 3y²

The length = 4y+7y³

Answer:

4y^2

Step-by-step explanation:

I have never really watched anime but I have been thinking to start watching it soooo does anyone have suggestions?

Answers

Answer:

yeah watch my hero academy One punch man n Naruto also Dragon Ball Z

Answer:

It’s not really an amine but avatar the last airbender

Step-by-step explanation:

Attack on titan

One punch man

the devils a part-timer

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