Mathematics High School

Solve the system of equations 6x + 3y = 9 and -5x – 5y = 0 by combining the
equations.

Answers

Answer 1

Answer:

(X, y) =(3,-3)

Step-by-step explanation:

Use second equation

Apply to the first

Related Questions

Simplify:
5x - 6x- 8x + 7

Answers

Answer:

-9x+7

Step-by-step explanation:

a) Sarah hires a pedalo.
She has to return it by 4 pm.
The time is 3:35 pm.
How many minutes has she got left?

Answers

Sarah has 25 minutes left

find the slope of the line passing through the points (-9, -6) and (-4, 5)

Answers

Answer:

11/5 slope

Step-by-step explanation:

5-(-6) -4-(-9)

11/ 5

5/12 would be the slope. Just count the boxes on the graph for proof

do you like my drawings

Answers

Answer:

They won't load for me

Step-by-step explanation:

Answer:

Dangggg the best I have seen

Step-by-step explanation:

but this is better

please help I suck at math: solve the equation 3x+2=x+4(x+2)

Answers

Answer:

-3

Step-by-step explanation:

3x+2=x+4x+8

3x+2=5x+8

2=2x+8

-6=2x

-3=x

please help lol !!! :)

Answers

Answer:

C

Step-by-step explanation:

Which function is represented by the graph?

Answers

9514 1404 393

Answer:

  f(x) = -2|x| +1

Step-by-step explanation:

The vertical translation is 1 unit upward, and there is no horizontal translation. So, the function will be something of the form ...

  f(x) = a|x| +1

The slopes of the lines have a rise/run with a magnitude of 2/1, so the value of 'a' will have a magnitude of 2. The appropriate choice is ...

  f(x) = -2|x| +1

A bin in the gym holds 40 balls, which are a mix of
basketballs, soccer balls, and dodgeballs. The ratio
of basketballs to soccer balls is 3:1. The ratio of

soccer balls to dodgeballs is 1:4. How many basket-
balls are in the bin?

Answers

A ratio in mathematics demonstrates how many times one number is present in another.

Find the solution ?A ratio in mathematics demonstrates how many times one number is present in another.For instance, if a dish of fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).

15 basketballs

3:1:4= 8

40/8= 5

3*5=15

1*5=5

4*5=20

15:5:20

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HELPPPPPPPPPPPP MEEEEEEEEE PLZZZZZZZZZZ it is due soon:'(((((((((( if you answer it correctly ill give you bfrainly

Answers

Answer:

y = 65x + 250

Step-by-step explanation:

Let the linear equation representing the relation between total pay and number of computers sold be,

y = mx + c

Here, m = commission on every computer sold = slope of the linear function

c = weekly salary

y = total pay

x = number of computer sold each week

Since, slope of the line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

From the table attached,

Slope of the line passing through (4, 510) and (6, 640),

m = [tex]\frac{640-510}{6-4}[/tex]

   = 65

Equation of the line will be,

y = 65x + c

Since, this line passes through (4, 510),

510 = 65(4) + c

c = 510 - 260

c = 250

Therefore, equation of the line will be,

y = 65x + 250

Given a mean of 80 and a standard deviation of 3, label the normal curve below.

Answers

Answer:

The points from the left;

71, 74 , 77, 80, 83, 86 , 89

Step-by-step explanation:

Here, we want to label the normal curve given the mean and the standard deviation

From what we have, the central part is the mean while the other parts are deviations from the mean

We will label the graph starting from the left to the right

1 is 3 SD from the mean (negatively)

That will be 80-3(3) = 80-9 = 71

2 is 2 SD away

That will be;

80 -2(3) = 80-6 = 74

The 3rd part is 1 SD away

That will be 80-3 = 77

The midpoint is for the mean which is 80

The point after this will be;

80 + 3 = 83

The point after this will be;

83 + 3 = 86

Next is

86 + 3 = 89


Which letter represents where the number 29 lies?
A)А
B)B
C)C С
D)D

Answers

Answer:

Step-by-step explanation:

b IS THE ANSWER.

Answer:

B

Step-by-step explanation:

Can someone please help me figure this out (trig) (pre calc)

Answers

Answer:

1. x = 1.5 rpm

2. x ≈ 0.8182 mi/hr

3. x = 6.6 feet

4. x = 4224 rpm

5. x = 390 rpm

Step-by-step explanation:

The relationship between angular speed and linear speed is given as follows;

Angular speed, ω = Linear speed, v/(Radius, r)

Therefore, we have;

1. When v = 12 cm/min = r = 8 cm , ω = 12/8 = 1.5 rpm

2. When, ω = 4 rpm, and  r = 18 feet, v = 4 × 18 = 72 feet/min ≈ 0.8182 mi/hr

3. When, ω = 800 rpm, and v = 60 mi/hr = 1 mi/min, r = x = 1/800 miles = 6.6 feet

4. When v = 60 mi/hr = 63,360 mi/min, r = 15 in , ω = 63360/15 = 4224 rpm

5. When v = 13 in/sec = 780 in/min, r = 2 in, ω = 780/2 = 390 rpm

Need help on number 5!

Answers

a. To find the mean, you first have to add all of the numbers together. Keep in note that if there is more than 1 dot above the number, such as 2 or 3 dots, then you must add the the amount of dots there are above it. Next, you want to divide the total amount of the numbers by the total amount of numbers you have added to get this. That will be the mean. The mean represents the average amount of wage the college students earn during a 1-week span.

b. Next, you want to find the median. Put all of the numbers together in a line, ranging from smallest to largest. Whatever number is in the middle is going to be your median. Keep note for this as well that if there is, for example, 2 dots above the number, you will have to write the number two times. The median helps interpret the middle, and separates the lower, and high values.

c. No, a box plot is not the same as a dot plot. It can interpret the median, but not the mean. A box-and-whisker plot is usually used when you want to find the IQR (interquartile range).

Please help me on this

Answers

Answer:

First choice

Step-by-step explanation:

It the first one hope this helps :)

What is the point slope form of a line that has a slope of five and passes through the points 3,-4

Answers

Answer:

it would be, 5x-y=-19

Step-by-step explanation:

Use equation y-y1=m(x-x1)

4/-2 simplified

For math not sure how to do it

Answers

Answer:

the answer is just -2

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

U would divide 4 by -2

-2,-5,-8,-11 41st term

Answers

Answer:

-122

Step-by-step explanation:

The common difference is

-5-(-2)

-3

So

a+(n-1)d

-2+(41-1)-3

-2+(-120)

-122

-122 I believe is the answer I hope this helps

b. Which is an equation for the line? *

Answers

Answer:can see the line

Step-by-step explanation:

if it is linear it is =Ax+By=C

(Geometry)
Find the value of X
Show work

Answers

Answer:
Value of X is ——
1) x = 7

.
The model represents an equation.
what is the solution for this equation?
a x=3
b x=15
c x=5
d x=1

Answers

Answer:

D. x=1

Step-by-step explanation:

Image can be rewritten as 3x + 6 = 9.

Solve for x.

3x +6 = 9

Isolate x by subtracting 6 from both sides.

3x = 3

Get rid of the 3 by dividing by 3 on both sides.

x = 1

Hope this helped.

what is the answer to -2(x+3)

Answers

Answer:

-2x-6

Step-by-step explanation:

-2(x+3) =

According to the distributive property:

(-2*x) + (-2*3) =

-2x - 6

Answer: -2x-6

Explanation : we apply the distributive property which would mean -2 times x which would be -2x and then we would switch the positive to a negative since all of the numbers are negative and -2 times 3 equals -6 so that is why that is the answer have a nice day (:

Find the average rate of change of the function f(x)=(3/-3x-5), on the interval x ∈ [0,3]

Answers

Answer:

The average rate of change on the given interval is 9/70

Step-by-step explanation:

Here, we are to find the average rate of change of the function on the given interval

We proceed as follows;

on an interval [a,b] , we can find the average rate of change using the formula;

f(b) - f(a)/b-a

From the question;

a = 0

b = 3

f(0) = -3/5

f(3) = -3/14

Substituting the values, we have;

-3/14-(-3/5)/3-0

= 3/5-3/14/3

= (42-15)/70/3

= 27/70/3

= 27/70 * 1/3 = 9/70

How do you do this one I tried all ways and it didn’t work

Answers

Answer:

Well, to start the angle supplementary to 94° is 86°.

86°+20°=106°

180°-106°=74°

x=74°

Step-by-step explanation:

Sorry if it's wrong

a hostel gets rs 5000000 net profit in a year .the hostel distributes rs 50000 to each workers equally .find the total amount of bonus received by 55 workers​

Answers

Answer:

pls state the question in another state

Step-by-step explanation:

okay

f(x) = -x2
Find f(-5)

Answers

Answer:

f(-5) = -25

Step-by-step explanation:

f(-5) = -(-5)^2

f(-5) = -25

hope this helps, pls mark brainliest :D

I need help on this question right now

Answers

Answer:

96 degrees

Step-by-step explanation:

a

What is this equation in slope-intercept form of the line the past point to (2,-2) and is perpendicular to the liner represented by y=2/5 X +2

Answers

Answer:

y = -5/2x-2

Step-by-step explanation:

What is the measure of angle x? (1 point)
1) 25 degrees
2) 40 degrees
3) 55 degrees
4) 105 degrees

Answers

Answer:

x=55degree because x+25=80 so x=55

Answer:

55°

Step-by-step explanation:

This is because that angle is 80° but is split into two and 80-25=55

x3 - 7x,
f(x) = 8,
2x + 3,
x < -3
- 3 < x < 3
x > 3

Answers

Answer:

I did the math and I believe that answer is : -12x4-5x

Step-by-step explanation:

23, f(x) = 4x- 25, f(x) = x2-3x + 10 26. 27. f(x) 3x2 29, f(x) = 2x3-5x2 + 4x-1 30. f(x) = x3-3x2 31, f(x)--2x3-8x2 + 6x + 36 28, f(x) = x3-x2-x + 1 For each function use the leading coefficient test to determine whether y → oo or y →-oo as x → oo. 33, y=2x3-x2 + 9 35. y =-3x4 + 5 34. y=-3x + 7 36, y = 6x4-5x2-1 38, y = 5x-7x4 37. y=x-3x3 For each function use the leading coefficient test to determine whether y → or y →

x+2/2x-6=3/8 solve using multiplication property of equality

Answers

The solution to the equation given as x+2/2x-6 = 3/8 is x = -34/5

What are expressions?

Expressions are mathematical statements that are represented by variables, coefficients and operators

How to solve using multiplication property of equality?

The equation is given as

x+2/2x-6=3/8

Apply the multiplication property of equality.

So, we have

8(x + 2) = 3(x - 6)

Open the brackets

8x + 16 = 3x - 18

Collect the like terms

5x = -34

Divide both sides by 5

x = -34/5

Hence, the solution to the equation given as x+2/2x-6 = 3/8 is x = -34/5

Read more about equations at

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