Answer:
2. (-2)(4)
Step-by-step explanation:
C, or the last photo, shows a reflection.
Step-by-step explanation:
y2-y1/x2-x1
6-(-3)/-5-(-4)
6+3/-5+4
9/-1
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