Answer:
21
Step-by-step explanation:
5×3=15
7×3=21
Answer:
Step-by-step explanation:
Multiply by 4
so x+3=8*4
x+3=32
-3. -3
x=29
C=3 that’s the answer I think
Aaaa i don’t think you picture matches the equation!
Answer: 3km/h
Step-by-step explanation:
Johns average speed was 6km/h, so in 3 hours he traveled 18 km. 27-18=9, so Peter ran 9 km in 3 hours. 9/3 = 3, so his average speed was 3km/h