All categories

3 years ago

I know the 90 percent number so how do i find the 100 perent number

Mathematics

2 answers:

nadezda [96]3 years ago

7 0

Divide th 90% number by 9. Then multiply that quotient by 10 to get the 100% number

scoray [572]3 years ago

4 0

divide the known number by 0.9

for example if you know 9 is 90% of a number

divide 9 by 0.9 which = 10

9 is 90% of 10

You might be interested in

Can y’all help me with this plzzzz

Leviafan [203]

Answer:

the answer is 1080 so yea

6 0

3 years ago

Read 2 more answers

Please answer this question

max2010maxim [7]

As it is given :

Present age of mom : Present age of son = 6 : 1

Therefore let :

Mother's age be 6x

Son's age be x

Ages after 10 year :

Mom's age = 6x + 10

Son's age = x + 10

<h3>Part three :</h3>

The ages after 10 years are given in rational of 8 : 3.

Which means :

Mom's age after 10 years : Son's age after 10 years = 8 :3.

Now :

$\scriptsize \purple{ \boxed{ \scriptsize \dfrac{ \text{Mom's age after 10 years}}{ \text{son's age after 10 years}}= \dfrac{8}{3} }} \star$

$\\ \\$

So :

$\small\sf \dashrightarrow \dfrac{6x + 10}{x + 10} = \sf \dfrac{8}{3}$

$\\ \\$

$\small\sf \dashrightarrow \dfrac{3(6x + 10)}{x + 10} = \sf \dfrac{8}{1}$

$\\ \\$

$\small \sf \dashrightarrow \dfrac{18x +30}{x + 10} = \sf \dfrac{8}{1}$

$\\ \\$

$\small\sf \dashrightarrow \dfrac{18x +30}{1} = \sf \dfrac{8(x + 10)}{1}$

$\\ \\$

$\small \sf \dashrightarrow 18x +30= \sf 8(x + 10)$

$\\ \\$

$\small\sf \dashrightarrow 18x +30= \sf 8x + 80$

$\\ \\$

$\small\sf \dashrightarrow 18x - 8x +30= \sf 80$

$\\ \\$

$\small \sf \dashrightarrow 10x +30= \sf 80$

$\\ \\$

$\small \sf \dashrightarrow 10x = \sf 80 - 30$

$\\ \\$

$\small \sf \dashrightarrow 10x = \sf 50$

$\\ \\$

$\small \sf \dashrightarrow \dfrac{10x}{10} = \sf \dfrac{50}{10}$

$\\ \\$

$\small \sf \dashrightarrow \dfrac{1\cancel0x}{1\cancel0} = \sf \dfrac{5\cancel0}{1\cancel0}$

$\\ \\$

$\small\bf \dashrightarrow x = \pink 5$

$\\$

We know :

$\footnotesize \hookrightarrow \sf Son's \: age = x$

$\footnotesize \hookrightarrow \sf Son's \: age = \red{5 \: years}$

$\\ \\$

$\footnotesize \hookrightarrow \sf Mother's \: age = 6x$

$\footnotesize\hookrightarrow \sf Mother's \: age = 6 \times 5$

$\footnotesize \hookrightarrow \sf Mother's \: age = \bf \red{30 \: years}$

And all we are done ! ㋛

4 0

2 years ago

two sides of a scalene triangle measure 15cm and 12cm if the perimeter of the triangle is 40cm, fine the length of the third sid

Hoochie [10]

Answer:

40-15-12= 13

Step-by-step explanation:

15 + 12 + x = 40

Solve for x

8 0

3 years ago

Two trains leave stations 228 miles apart at the same time and travel toward each other. One train travels at 105 miles per hour

Anastaziya [24]

Answer:

in 20 kilometers round they will meet

3 0

3 years ago

Which of the following best represents the average rate at which infants grow in height during the first four years after birth?

Valentin [98]

The answer would be three inches per year or B. Hope this helped :)

8 0

3 years ago

Read 2 more answers