Answer:
2x +7 +2x = 4x +7
Step-by-step explanation:
Honestly photo math is the way to go but I got r= 17/13
8cm
6/3=y/4 ________ cross multiply
3y=24 ________ divide by 3
y=8
Answer:
Step-by-step explanation:
(a) 1.56×10^4 = 1.56×10000 = 15,600
(b) There are 3600 seconds in an hour, so Andrew's time was
15600 s/(3600 s/h) = 13/3 h = 4 1/3 h
1/3 hour is 20 minutes, so Evelyn's time of 4:16 is shorter than Andrew's time of 4:20.
