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frozen [14]
3 years ago
7

Find the percent of change. Round to the nearest tenth of a percent if necessary. 10 inches to 25 inches. ___ % increase.​

Mathematics
1 answer:
andrezito [222]3 years ago
8 0

Answer:

150%  change

Step-by-step explanation:

Formula for Percent change =  C =[ (new - old)/ old ]* 100%

C =  [ (25 in. - 10 in.) / 10 in. ] = [15/10 ] * 100% = 150 %

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X and y are in direct proportion, when x is 8, y is 12. Which of the following is not a
Nat2105 [25]

Answer:

d.

Step-by-step explanation:

if x varies directly as y,

x = ky

8 = 12k

12k = 8

k = 8/ 12

k = 2/3,

x = 2/3 y

now substitute the value of any of the numbers of each pair, and check if it works:

for e.g, find x when y = 15

x = 2/3y

x = 2/3 × 15

x = 10

since you obtain x = 10 when y = 15, the pair is a possible corresponding value of x and y. now do the same for the rest .

ii) x = 2/3y

x = 2/3 × 3, when y = 3

x = 2

hence, this is also a possible pair of x and y values.

iii) x = 2/3y

x = 2/3 × 9 when y = 9

x = 6

again, a possible pair of x and y values.

iv) x = 2/3y

x = 2/3 × 20 when y = 20

x = 40/3

here, when y = 20, x is not 15. it is 40/3.

thus, it can be determined that this is not a possible pair of x and y values.

please try to understand and have a great day!

8 0
2 years ago
Can someone help me please thank you
slavikrds [6]

Answer:

3j + 3m + 21

Step-by-step explanation:

Normally, they would each travel 3 miles, so the total would normally be 3j + 3m. However, for today, Jared ran another 21 miles, so 21 miles is added to the total.

Total distance = 3j + 3m + 21

3 0
3 years ago
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Hii! i’ll give brainliest pls help
podryga [215]

Answer:

the first answer

Step-by-step explanation:

8 0
3 years ago
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Select the best answer for the question.
hoa [83]

c is the correct answer

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3 years ago
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An animal shelter spends $5.50 per day to care for each bird and $7.50 per day to care for each cat. Daniel noticed that the she
Anuta_ua [19.1K]

Answer:

5 birds and 3 cats

Step-by-step explanation:

It was pretty easy I just used a calculator and added the numbers together till I got the right answer.

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