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3 years ago

9

you have some money. your friend has $50 less. Write an expression in simplest form that represents the total amount of money yo

u and your friend have

1 answer:

Maksim231197 [3]3 years ago

4 0

X=your money
y=total amount

x + (x-50) = y

This is one way to do it but it depends on what you learned from your teacher.

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Answer:

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Step-by-step explanation:

3 cereal boxes is 3c and the total is t. so 3c = t

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Answer:

Use this pencentage change formula:

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---------------- x 100

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390 + 35.10 = 425.1 (New value)

So apply this to the formula:

425.1 - 390

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3 years ago

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3 years ago

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4 years ago

Write the equation of a line that passes through (3.5,0) and is perpendicular to 8y+4x=64.

pantera1 [17]

Answer:

y = 2x + 3.5

Step-by-step explanation:

Step 1: find the slope

8y + 4x = 64

8y = 64 - 4x

Make y the subject of the formula

y = (64 - 4x)/8

y = ( -4x + 64)/8

Separate to get slope

y = -4x/8 + 64/8

y = -x/2 + 8

Slope is the coefficient of x

m = -1/2

Note: if two lines are perpendicular to the other , it is negative reciprocal to each other

m = 2

Using the point slope form equation

y - y1 = m(x - x1)

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Substitute the point

( 3.5 , 0)

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open the bracket

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y = 2x + 3.5

The equation of the line is

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