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1 year ago

Add 5x+4y;3x-7y;-4x+8y

Mathematics

1 answer:

viktelen [127]1 year ago

4 0

The answer is 4x + 5y.

Here, what needs to be done is to combine like terms.

5x + 4y + 3x - 7y - 4x + 8y
5x + 3x - 4x + 4y + 8y - 7y
4x + 5y

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Ye has his own business. He checks his sales receipts three times a day, his afternoon sales were 50$ more than his mourning sal

IRINA_888 [86]

Answer:

The answer is 150

Step-by-step explanation:

It's 150 because ye evening sales are three times of his afternoon sales.

SO that means you have to times 50x3=150 or you can add 50+50+50=150. there is your answer.

3 0

2 years ago

Read 2 more answers

Find the sum of the equation

stealth61 [152]

Answer:

$\frac{{y}^{2}+13y-6}{{(y-1)}^{2}(y+7)}$

Step-by-step explanation:

1) Rewrite ${y}^{2}-2y+1y$ in the form ${a}^{2}-2ab+{b}^{2}$ , where a = y and b = 1.

$\frac{y}{{y}^{2}-2(y)(1)+{1}^{2}}+\frac{6}{{y}^{2}+6y-7}$

2) Use Square of Difference: ${(a-b)}^{2}={a}^{2}-2ab+{b}^{2}$ .

$\frac{y}{{(y-1)}^{2}}+\frac{6}{{y}^{2}+6y-7}$

3) Factor ${y}^{2}+6y-7$ .

1 - Ask: Which two numbers add up to 6 and multiply to -7?

-1 and 7

2 - Rewrite the expression using the above.

$(y-1)(y-7)$

Outcome/Result: $\frac{y}{(y-1)^2} +\frac{6}{(y-1)(y+7)}$

4) Rewrite the expression with a common denominator.

$\frac{y(y+7)+6(y-1)}{{(y-1)}^{2}(y+7)}$

5) Expand.

$\frac{{y}^{2}+7y+6y-6}{{(y-1)}^{2}(y+7)}$

6) Collect like terms.

$\frac{{y}^{2}+(7y+6y)-6}{{(y-1)}^{2}(y+7)}$

7) Simplify ${y}^{2}+(7y+6y)-6y$ to ${y}^{2}+13y-6y$

$\frac{{y}^{2}+13y-6}{{(y-1)}^{2}(y+7)}$

5 0

1 year ago

Read 2 more answers

Match the terms to their correct definitions.

Inessa [10]

Not 100% positive, but I think that it’s
13
10
9
16
15
11
14
12
I hope this helps

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1 year ago

How do i calculate the increase in percent after a year?

iren2701 [21]

divide the larger number by the original number .
subtract one from the result of the division
multiply this new number by 100
divide the percentage change by the period between the two numbers
you now have the percentage increase over time

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2 years ago

Which statement best compares savings accounts and money market accounts?

Kazeer [188]

A regular savings account

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1 year ago

Add 5x+4y;3x-7y;-4x+8y​

Add 5x+4y;3x-7y;-4x+8y