Answer:
-3/5
Step-by-step explanation:
-8/15 + (-1/15) = -8/15 - 1/15 = -9/15 = -3/5
Answer:
R&S
Step-by-step explanation:
Answer:
There are 32 dimes and 25 quarters.
Step-by-step explanation:
q + d = 57 or q = 57 - d
25q + 10d = 945
substitute first equation into second equation:
25(57 - d) + 10d = 945
1425 - 25d + 10d = 945
-15d = -480
d = -480/-15 = 32
using first equation:
q = 57 - 32 = 25
check using second equation:
25(25) + 10(32) = 945 checks
Answer: –9 and 2
Step-by-step explanation:
y = 5x, so 5 is the constant of proportionality
