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2 years ago

Here is a rectangle ABCD.

Mathematics

1 answer:

SCORPION-xisa [38]2 years ago

5 0

Answer:

Step-by-step explanation:

Original perimeter is 100cm

The 20cm is representative of the width
30cm is representative of the length

length is increased by 10%

30+(.10 x 30)
(1 + .10) × 30
(100% + 10%) × 30
110% × 30
110 ÷ 100 × 30
110 × 30 ÷ 100
3,300 ÷ 100
= 33

length is increased by 5%

20 + (5% × 20) =
20 + 5% × 20 =
(1 + 5%) × 20 =
(100% + 5%) × 20 =
105% × 20 =
105 ÷ 100 × 20 =
105 × 20 ÷ 100 =
2,100 ÷ 100 =
= 21

New perimeter: 108 cm

Percentage increase:

(108-100):100*100 =
(108:100-1)*100 =
108-100 = 8
= 8%

Hopefully this helps

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2 years ago

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gulaghasi [49]

Answer:

See below

Step-by-step explanation:

I believe that you only had to do letters F, H, and J. In that case, let's go over each one!

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

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