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3 years ago

14

A rectangle with dimensions of 3 units by 5 units is enlarged by a scale factor of 1.4 By what percent does its area increase?

2 answers:

Delicious77 [7]3 years ago

8 0

Answer:

128.(6)%

i think this is the ans

vodomira [7]3 years ago

3 0

$A_1=3*5=15\\
3.5*1.4=4.9\\
5*1.4=7\\
A_2=4.9*7=34.3\\
\frac{34.3}{15}*100\%=228.(6)\%\\
228.(6)\%-100\%=128.(6)\%$

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(5a^2+6a+2)-(7a^2-7a-5)

krok68 [10]

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We eliminate the parentheses taking into account that:

$- * + = -\\- * - = +$

So:

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We add similar terms taking into account that:

Equal signs are added and the same sign is placed.

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Answer:

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3 years ago

This month the Middle School Media newspaper has 25 pages. Twenty-five schools order the paper for each of their students. Each

musickatia [10]

Answer:

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Now; the number of students in each school

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2 years ago

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Jlenok [28]

The answer:

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3 years ago

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otez555 [7]

$Hey$ $there!$

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$Hope$ $it$ $helps!$ $Have$ $a$ $great$ $day!$

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3 years ago

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rjkz [21]

You can simply it to 3/4

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3 years ago

Read 2 more answers