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3 years ago

The price of a coat increased from $78 to $92. What is the price increase percentage?

Mathematics

1 answer:

svetlana [45]3 years ago

6 0

Answer:

18%

Step-by-step explanation:

Percent change can be found using the following formula:

$\frac{original-new}{original}*100$

Original represents the initial cost where new represents the new cost. We multiply the answer by 100 to get the percentage:

$\frac{92-78}{78}*100$ = 18%

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slava [35]

Answer:

Diego is 14 years old.

Sister is 19

Step-by-step explanation:

x = Diego's age

x + 24

2x-9 = 2

First to get rid of the fraction we multiply each side by 2

2(2x-9) = 2((x+24)/2)

4x-18 = x+24

The we isolate x

4x-18 = x+24

-x+18 -x+18

3x = 42 Now we divide each side 3

3 3

x = 14

So Diego is 14

Now we can solve for his sister. We can use one of the two equations from earlier to do this.

Plug 14 in for x and then solve for his sister

2(14)-9

28-9

His sister is 19

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3 years ago

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lawyer [7]

Answer:

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2 years ago

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goblinko [34]

Answer:

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3 years ago

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dem82 [27]

Answer:

Step-by-step explanation:

Rewriting in slope-intercept form.

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