Answer:
equals 4 i believe..
Step-by-step explanation:
Answer:
10 quarters, 23 dimes
Step-by-step explanation:
Make dimes = d and quarters = q. Let the number of dimes and quarters add up to 33 and the value of the dimes and quarters add up to 4.80. The system of equations should look like:
- d + q = 33
- 0.10d + 0.25q = 4.80
Solve for d in the first equation. Subtract q from both sides.
d = 33 - q
Substitute d into the second equation.
0.10(33 - q) + 0.25q = 4.80
Distribute 0.10 inside the parentheses.
3.3 - 0.10q + 0.25q = 4.80
Combine like terms.
3.3 + 0.15q = 4.80
Subtract 3.3 from both sides.
0.15q = 1.5
Divide both sides by 0.15.
q = 10
Substitute this value of q into where we solved for d (d = 33 - q).
d = 33 - (10)
d = 23
Answer:
-112.5
Step-by-step explanation:
2x - 50 = -275
2x = -225
x = - 112.5
Answer:
6.15 in squared
Step-by-step explanation:
Hope This Helps :b
It is 236.39. Explanation if Margo is driving 61.4 miles per hour he will go that many miles an hour, tip (don't think of it as speed in math). If 3.85 hours pass multiply that against 61.4 miles an hour. Getting you 236.39. Here is an explanation. His amount of distance he covers per hour is 61.4 so every hour that number adds up and to get this just multiply against 3.85 hours. Do you get it now?
