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3 years ago

8x-6y=-18 8x+7y=9what does y equals

Mathematics

1 answer:

dimaraw [331]3 years ago

4 0

8x-6y=-18 = y=4x/3 +3 and 8x+7y=9 is 8x/7+9/7

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3 years ago

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on a deposit of $4,000 that earns 8% compound interest compounded annually how much will you have after 2 years

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3 years ago

Graph the linear equation to -2x+7y=-21

mr Goodwill [35]

Answer:

This equation is in standard form, so to make graphing easier you need to put it in y=mx+b form or slope, intercept form.

Step-by-step explanation:

I have attached a photo of what the graph would look like.

However, in the future you should know how to turn this into a slope intercept equation.

-2x+7y=-21

+2x +2x

7y=2x-21

divide the entire equation by 7

y= 2/7x-3

That is a full equation in slope intercept form.

Hopefully this helps!

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2 years ago

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Priya have a recipe for banana bread she is a 7 1/2 cups of flour to make three loaves of banana bread Andrew will follow up the

katrin2010 [14]

Answer:

Andrew will do 7 1/2 + 7 1/2 which equals 15

Step-by-step explanation:

Hope it helps

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3 years ago

Four times a number increased by one is between a negative seven and thirteen. Find all numbers.

aleksley [76]

Answer:

Step-by-step explanation:

Let the number be x.

four times the number:

If the exprression is increased by 1, it will become:

4x+1

If the value is between -7 and 13, the value of x will be within the range [-6, 12]

Equating the resulting expression to each end point.

At end point of -6

4x+1 = -6

4x = -6-1

4x = -7

x = -7/4

At the end point of 12:

4x+1 = 12

4x = 12-1

4x = 11

x = 11/4

Hence all the numbers will be within the range [-7/4, 11/4] or -7/4≤x≤11/4

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3 years ago

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