Mercedes12152002

29.03.2021 • 

Mathematics

30 POINTS FOR ALL OF THESE, BRAINLIEST IF YOU GET THEM ALL CORRECT!!! 1. 30% of 70 equals what percent of 84?

A. 35%

B. 25%

C. 100%

D. 40%

2. 75% of 36 equals what percent of 58?

A. 86%

B. 39%

C. 63%

D. 46%

3. Mara spent 3/5 of her vacation in British Columbia. While in that province,
she spent ½ of her time in Vancouver. What fraction of her vacation did
Michaela spend in Vancouver? If her vacation lasted 20 days, how many
days did she spend in Vancouver? Explain your answer.

Ответ:

alishakira690

28.04.2021

Mathematics

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#1

30% of 70 ⇒ 0.3*70 = 21x% of 84 = 21x*84/100 = 21x = 2100/84x = 25%

#2

75% of 36 = x% of 580.75*36 = 0.58x0.58x = 27x = 27/0.58x = 46.55%

#3

1/2 of 3/5 ⇒ 1/2*3/5 = 3/10 3/10 of 20 days ⇒ 3/10*20 = 6 days

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Ответ:

mal5546

13.01.2022

Mathematics

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490*x + 700*y > 4000

It is < as it can be equal to 4000 per week or less than.

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