14 is 20% of 70
30 is 58% of 48
9-10 is 10% of 95

First let

, so that

to write the integral as

Now recall that

, so substituting

should do the trick. The integral then becomes
Answer:
7 1/2
Step-by-step explanation:
If the total value of the coins is $15. The number of each type of coin is: 31 quarters, 72 dimes.
<h3>Number of each type of coin</h3>
Let D = number of dimes
Let Q = the number of quarters
Equations
d + q = 103
0.10d + 0.25q = 15
d = 103 -q
0.10(103 -q) + 0.25q = 15
10.3 - 0.10q + 0.25q = 15
0.15q = 4.7
q=4.7/0.15
q=31 quarters
Substitute q into second equation
D+31=103
D=72 dimes
Therefore the number of each type of coin is: 31 quarters, 72 dimes.
Learn more number of each coin here:brainly.com/question/13934075
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Answer:
x/7 + 1 = 10
Step-by-step explanation:
x/7 + 1 = 10