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.
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Answer:
Step-by-step explanation:
Given that the change is -13/10 in 10 seconds
Here, you can write this statement as;
10s = -13/10
30s=?----------------perform cross-multiplication
(-13/10 * 30 ) /10
Answer:
1) 275
2)60
Step-by-step explanation:
1) 55 x 5 =275
2) 12 x 5 = 60
<em><u>Hope it helps!</u></em>
First of all you have to use the formula
a^2+B^2=c^2
a=6 b=4 c=?
6^2+4^2=?
36+16=?
after you add 36 and 16 find the square root
the square root of 52 is 7.211
if you don't want it in decimals you can just put it like this <span>sqrt(52)</span>
25x25+20x25+20x15+15x25=1800 the answer is D.
