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2 years ago

7

Colton scored a 70 on his first history test of the term and a 91 on the second history test. Coltons score increased by what pe

rcent?

2 answers:

BartSMP [9]2 years ago

8 0

His score increased by 21%

91-70=21 therefore he increased his score by 21%

AnnZ [28]2 years ago

8 0

Answer:

30 Percent

Step-by-step explanation:

Use the percent change formula.

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Answer:

Aaron needs <u>2 more rolls</u> to complete the path.

Step-by-step explanation:

Given:

Total rolls Aaron has = 4

Part of path covered by using $\frac{3}{4}$ of a roll = $\frac{1}{8}$

So, in order to find the number of rolls required to cover the complete path is given using the unitary method.

Rolls used for $\frac{1}{8}$ of a path = $\frac{3}{4}$

Therefore, rolls used to cover the whole path is given by dividing the rolls used for one-eighth of the path and the path covered. This gives,

$=\frac{3}{4}\div \frac{1}{8}$

$=\frac{3}{4}\times \frac{8}{1}$

$=\frac{3\times 8}{4\times 1}$

$=\frac{24}{4}$

$=6\ rolls$

Now, rolls required to complete the path is 6. But Aaron has only 4 rolls.

So, he will need 6 - 4 = 2 rolls more to complete the path.

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saveliy_v [14]

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