Answer:
Step-by-step explanation:
Let the number of dimes be d and quarters be q
<u>The value is $8.80 = 880¢, so:</u>
- 10d + 25q = 880 ⇒ 2d + 5q = 176
<u>If the dimes were quarters and the quarters were dimes, the coins' total value would be $7.30 or 730¢</u>
- 25d + 10q = 730 ⇒ 5d + 2q = 146
<u>Now we have 2 equations. Solving the system by elimination, subtract 5 times the second equation from twice the first equation:</u>
- 2(2d + 5q) - 5(5d + 2q) = 2(176) - 5(146)
- 4d - 25d = -378
- -21d = -378
- d = -378/-21
- d = 18
Answer:
1.20
Step-by-step explanation:
3.60( the cost)divided by the number of apples.
Answer:
A = $ 4188.38
Step-by-step explanation:
A= $2500
r = 3.5% = 0.035
t = 15years
n = 1
Find ab….using your calculator
Ok, 65% of the attendants were men, 25% were women.
That leaves us with 10% remaining.
From those 10% .................The problem tells us that 40% are boys
So 10% * ( 0.4 ) = 4% ..............This means that 4% of the total attendants were boys.
So the distribution is
65%........men
25%........women
4%..........boys
6%...........girls
640 boys attended the game.....> this means that 4% of the total amount of people is 640.
So the number of persons that attended were
T= 100% *(640)) / 4% = 16000 people
