Answer:
140
Step-by-step explanation:
=(-4+55+18)+(18+25+28)
=69+71
=140
Answer:
62
Step-by-step explanation:
Using the first equation:
4x = y + 3 ---> y = 4x - 3
We then substitute this into the second equation:
7x - 9(4x-3) = -2 ---> 7x - 9x + 27 = -2 ---> -2x = -29 ---> x = 14.5
Answer:
4) C
5) C
Step-by-step explanation:
Answer: 29/28
Step-by-step explanation:
-2/7 x (-3 5/8)
= -2/7 x -29/8
= 2/7 x 29/8 = 1/7 x 29/4
= 29/28