Answer:
Joel's coin collection had 120 dimes and 80 quarters.
Step-by-step explanation:
Given that Joel had a coin collection of two hundred coins, which were dimes and quarters, and the total value was worth $32, to determine how many coins of each type he had, the following equations must be performed:
0.25 - 0.10 = 0.15
200 x 0.10 = 20
32 - 20 = 12
12 / 0.15 = 80
200 - 80 = 120
(80 x 0.25) + (120 x 0.1) = X
20 + 12 = X
32 = X
Therefore, Joel's coin collection had 120 dimes and 80 quarters.
Somebody else posted this exact same question just yesterday.
HE didn't include the list of choices either.
Here are a couple of equations that model the situation:
Power = 0.2 (length of side of a square solar panel)²
or
Power = 0.2 (length of the solar panel) (width of the solar panel) .
Answer:
15% probability that 7 adults selected at random from the town all have health insurance.
Step-by-step explanation:
(sample/population)^number of times selected
(76/100)^7 = (0.76)^7 = 0.15 = 15%
Answer:
15 candy bars
Step-by-step explanation:
Answer:
20 total students. If I was one of the four guys in that class, man would that be fun.
Step-by-step explanation:
