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3 years ago

Combine like terms to simplify each expression

Mathematics

1 answer:

Anna35 [415]3 years ago

4 0

1) 1x or just x
2) 6y-5
3) 7n+5
4) -9x-6
5) 12x+14

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Of the CP of 15 articles equals to the SP of 12 articles, find the gain percent. an ple 4:

Rasek [7]

Question

If the CP of 15 articles equals to the SP of 12 articles, find the gain percent.

Answer:

gain percent = 25%

Step-by-step explanation:

To solve the question given, we will follow the steps below:

gain% = $\frac{s.p - c.p}{c.p}$ × 100%

But from the question;

"CP of 15 articles equals to the SP of 12 articles", this implies that

15 c.p = 12 s.p

s.p = 15c.p / 12

s.p = $\frac{15 c.p}{12}$ = $\frac{5c.p}{4}$

s.p = $\frac{5c.p}{4}$

substitute s.p = $\frac{5c.p}{4}$ into the formula

gain% = $\frac{s.p - c.p}{c.p}$ × 100%

= $\frac{\frac{5c.p}{4} - c.p }{c.p}$ × 100%

= $\frac{\frac{5c.p - 4c.p}{4} }{c.p}$ × 100%

= $\frac{c.p}{4}$ ÷ c.p × 100%

= $\frac{c.p}{4}$ × $\frac{1}{c.p}$ × 100%

= $\frac{1}{4}$ × 100%

= 25 %

3 0

3 years ago

What is the result of subtracting the second equation from the first -2x+7y=10 3x+7y=2

Iteru [2.4K]

The answer after subtracting the following equation is x= -8/5

Step-by-step explanation:

-2x+7y=10 ----- eq(1) , 3x + 7y =2------ eq(2)

7y+3x =2

7y-2x = 10

subtracting eq 2 from eq 1 we get

5x = -8

x= -8/5

8 0

3 years ago

The art teacher mixed 1/3 oz of red paint with 3/4 oz of blue paint to make purple paint. To make more of the same purple paint,

Sedbober [7]

Answer:

8/9 sorry if wrong

Step-by-step explanation:

6 0

3 years ago

What is the answer to a0/12 = -6

emmainna [20.7K]

The answer I think it would be -6 right?

5 0

3 years ago

12/20 in simplest form

lord [1]

The GCF (greatest common factor) of both of these numbers is 4, so if you divide the numerator and denominator by 4, you get 3/5.

3 0

3 years ago

Read 2 more answers