The answer is 42.5$. 30% off 75=52.5. 52.5-10=42.5
Using proportions, it is found that the number of books that was left over was of 505.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The number of books received by Marie is given by:
M = 772 - 345 = 427.
Melanie received one-sixth of Marie, hence:
Me = 427/6 = 71.
The total amount is 25 times Melanie's amount, hence:
T = 25 x 71 = 1775.
The amount left over is:
L = 1775 - (772 + 427 + 71) = 505
More can be learned about proportions at brainly.com/question/24372153
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Answer:
3/10 or three-tenths
Step-by-step explanation:
Hope this helps=D
Answer:
base = 3.1 cm
Step-by-step explanation:
b= base
perimeter= p
From the statement we know that p=15.7 cm
moreover:
a=c=6.3 cm
So we have:
15.7=2*a +b
15.7 = 2*6.3 +b
15.7-12.6 = b
b= 3.1 cm = base
Answer:
19
Step-by-step explanation: