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3 years ago

4 students is what percent of 20 students

Mathematics

2 answers:

11111nata11111 [884]3 years ago

8 0

4 / 20* (100%)
= 0.2* 100%
= 20%

4 students are 20% of 20 students~

Ghella [55]3 years ago

5 0

✡ Lets solve:

$\frac{4}{20} *100$
=0.2
Multiply that by 100
0.2*100=20

Answer: 20%

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Ethan writes 2/3 of a page in 5/12 of a minute. How much time does it take him to write one page

Nataliya [291]

2/3 of a page in 5/12 of a minute

Multiply both fractions by 3/2

$\frac{2}{3} \times \frac{3}{2} = 1$

$\frac{5}{12} \times \frac{3}{2} = \frac{5}{4} \times \frac{1}{2}=\frac{5}{8}$

So, Ethan can read 1 page in 5/8 of a minute.

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3 years ago

Every day sandra eats 1/8 pound of a blueberries. If she does this for 9 days, how many pounds of blueberries did she eat?

IrinaVladis [17]

Answer: 1.125 pounds of blueberries or $1 \frac{1}{8}$ or $\frac{9}{8}$

Step-by-step explanation:

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2 years ago

Why are 1 4 9 16 and 25 called perfect squares

olga nikolaevna [1]

Perfect squares can be divided and multiplied by the same number to get the same number. For example 25/5=5. 5*5=25.
4/2=2, 2*2=4
1/1=1, 1*1=1
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16/4=4, 4*4=16.
Hence the perfect squares.

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3 years ago

Read 2 more answers

I just need help. So, with this, since it’s 6.633 then would it just go back to 6.63 or to 6.60?

Brums [2.3K]

When you round, if the number you are rounding is more than 0, it will never be rounded down to 0. So 6.63 can never be rounded to 6.60 since 3 is more than 0.
In order to round the hundredths, you need to look at the thousandths.
The thousandths in 6.633 is the second 3.
Since 3 is less than 5, the first 3 will remain the same.
The correct answer is 6.63

hope this helps =)

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2 years ago

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To qualify for the championship, a runner must complete the race in less than 40 miles. Use t to represent the time of a runner

Elanso [62]

Answer:

The inequality which represents the situation is $t$ .

Step-by-step explanation:

Given:

Number of miles to complete the race = 40 miles.

We need to write the inequality to represent the situation.

Solution:

Let 't' represent the time of a runner who qualifies for the championship.

SO now we can say that;

time of a runner who qualifies for the championship should be less than Number of miles to complete the race.

framing in equation form we get;

$t$

Hence The inequality which represents the situation is $t$ .

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3 years ago