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2 years ago

Convert 40percent into fraction Into lowest terms

Mathematics

1 answer:

Katyanochek1 [597]2 years ago

3 0

Answer:

$\frac{2}{5}$

Step-by-step explanation:

$\frac{40}{100}$

divide the numerator and denominator by 20

$\frac{40 \div 20}{100 \div 20}$

$\frac{2}{5}$

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35=7x. please help me fasttt

AlladinOne [14]

Answer:

x=5

Step-by-step explanation:

35 divided by 7 is 5, so in that case, 7 times 5 is 35.

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2 years ago

An object’s speed decreases by 6% for each minute that it is slowing down. What is the percent that it’s speed will decrease ove

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3 years ago

Solve P = 8/3 R + 30 for R.

vampirchik [111]

Answer:

R = (3P-30)/8

Step-by-step explanation:

subtract 30 from each side to get:

P-30 = $\frac{8}{3}$ R

multiply each side by $\frac{3}{8}$ to get:

$\frac{3}{8}$ · P - 30 = R

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7 0

2 years ago

the first group of students consists of 10 and their average age was 13 years old the next group consisted of 30 students and th

Kazeer [188]

Answer: The average was 9 years old find the average age of both groups is 10 years old.

Step-by-step explanation:

Formula foe average : $\text{Average} =\dfrac{\text{Sum of all observations}}{\text{Number of observations}}$

Given : The first group of students consists of 10 and their average age was 13 years old.

i.e. $13=\dfrac{\text{Sum of ages of students of first group}}{10}\\\\\Rightarrow\ \text{Sum of ages of students of first group}=13\times10=130$ (1)

The next group consisted of 30 students and their average was 9 years old.

i.e. $9=\dfrac{\text{Sum of ages of students of next group}}{30}\\\\\Rightarrow\ \text{Sum of ages of students of nextgroup}=9\times30=270$ (2)

Then from (1) and (2) , the sum of both groups (first group and next group )students = 130+270 =400

Combined students of both groups (first and next group )= 10+30=40

Now , the average of both groups = $\dfrac{\text{Sum of combined students}}{\text{combined students}}$

$=\dfrac{400}{40}=10$

Hence, the average was 9 years old find the average age of both groups is 10 years old.

4 0

3 years ago

ziro4ka [17]

Answer:yhjghjghj

Step-by-step ex6757lanation:

4 0

3 years ago

Convert 40percent into fraction Into lowest terms​

Convert 40percent into fraction Into lowest terms