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Natalka [10]
4 years ago
13

Please help me with these 2 problems

Mathematics
1 answer:
blsea [12.9K]4 years ago
5 0
Hello!

Elimination is where you add or subtract two equations to get rid of a variable

(5x + 5y = -5) + (5x - 5y = 25)

This gives us 10x = 20

Divide 10 from both sides

x = 2

We can put x in to one of the original equations to get y

5(2) + 5y = -5

Combine like terms

10 + 5y = -5

Subtract 10 from both sides

5y = -15

divide both sides by 5

y = -3

The answer to the first one is (2, -3)

For the second one we can subtract the equations

(2x - 3y = 0) - 2x + y = 8

This gives us 4y = 8

Divide by 4 on both sides

y = 2

We can put y into one of the original equations to get x

2x + 2 = 8

subtact 2 from both sides

2x = 6

Divide both sides by 2

x = 3

The answer to the second one is (3,2)

Hope this helps!
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The slope of the line represents that the remainder of the goal decrease by 8 for each card sold.

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the slope of the line and b is the y intercept.

The line passes through the point (1, 8) and (2, 16), hence:

y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-8=\frac{16-8}{2-1}(x-1)\\\\y=8x

The equation of the line is given by y =8x

Find out more about linear equation at: brainly.com/question/14323743

Find out more on linear equation at: brainly.com/question/14323743

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3 years ago
The balance in Ms.
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49.47

Step-by-step explanation:

Take what she started with and subtract what she ended with

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What is the area of the shape.​
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Cut the shape into two shapes. The bottom will be a square and the top will be a long rectangle.

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Inez and Joe worked at store that sells cell phones.Inez worked for 7 hrs and 23 minutes and Joel worked for 4 hrs and 51 minute
Paul [167]

Answer:

Inez worked for 2 hours 32 minutes more than Joe

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Here, we are to calculate the difference in the amount of time in which both of them spent working.

Mathematically, that would be the time spent by Inez minus the time spent by Joe

= 7 hrs 23 minutes - 4 hrs 51 minutes

This works like normal arithmetic subtraction;

Since we cannot subtract 51 minutes from 23 minutes, we need to borrow 1 hour ( 60 minutes) from 7 , and it becomes 6 while our minutes become (60 + 23 = 83 minutes).

So the difference here will be (6-4)hrs and (83-51) minutes = 2 hrs 32 minutes

4 0
3 years ago
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