Answer:
There are 6 dimes and 9 quarters.
Step-by-step explanation:
Represent the number of dimes and the number of quarters by d and q.
Then d + q = 15, or q = 15 - d.
Also, ($0.25)q + ($0.10)d = $2.85, or 5q + 2d = 57.
Substituding 15 - d for q, we get 5(15 - d) + 2d = 57, or
75 - 5d + 2d = 57, or
75 - 3d = 57, or
3d = 18. Thus, there are 6 dimes. Since q = 15 - d, q = 15 - 6 = 9.
There are 6 dimes and 9 quarters.
Answer:
8
Step-by-step explanation:
when multiplying two negative, it turn into a positive.
You really just have to do 12.4 x 2 = 24.8 because half of 24.8 is 12.4.
Answer:
c.
Step-by-step explanation:Because it's c.
The triangle angle sum theorem states that the 3 angles in the triangle must equal 180 degrees.
