You can use proportions.
22.5/100 = 18/x
cross multiply:
100 x 18 = 1800
1800/22.5 = 80
so now you know 80 is the 100%.
then do:
37.5/100 = x/80
cross multiply:
37.5 x 80 = 3000
3000/100 = 30
37.5% = 30
Answer:
36
Step-by-step explanation:
Let's start by taking two of the smallest prime numbers: 2&3
Then we square both of them:
2²=4
3²=9
Then we multiply 4*9 to get 36.
22 houses can be cleaned in 11 hours.
Step-by-step explanation:
It is given that;
6 hours = 12 houses cleaned
1 hour = 
1 hour = 2 houses cleaned
In 1 hour, 2 houses can be cleaned, therefore,
11 hours = Time*houses cleaned in one hour
11 hours = 11*2 =22 houses cleaned
22 houses can be cleaned in 11 hours.
Keywords: unit rate, multiplication
Learn more about multiplication at:
#LearnwithBrainly
Based on your comment about the question, You would have to subtract 55 - 12, to find the remaining amount to get 12 up to 55, which would be 43 ;D
Largest doll = 12 inches
2nd doll = (12) x 0.7
3rd doll = (12 x 0.7) x 0.7
4th doll = [(12 x 0.7) x 0.7) x 0.7
So, the height of the nth doll can be expressed as: 12 x 0.7^(n-1)
Example: 4th doll = 12 x 0.7^(4-1) = 12 x 0.7^3
