63
5 tens equals 50
13 ones equals 13
50 +13 = 63
Answer:
It would take 336 seconds
Step-by-step explanation:
Set up as a proportion:
50 meters/21 seconds = 800 meters/x
Then we cross multiply to find the answer:
336 = x
8x10=80
8-are 8, 16, 24, 32, 40, 48, 56, 64, 72, 80
10-10, 20, 30, 40, 50, 60, 70, 80, 90, 100
Answer:
b. a=-12
Step-by-step explanation:
3a-5a+10=34
multiply -5 times a and -2
-2a+10=34
-5a from 3a
-2a=24
subtract 10 from both sides
a=-12
-2a divided by both sides
