Answer:
I'm pretty sure it's the first and last one
Answer:
5.625 or 5-5/8 or 45/8
Step-by-step explanation:
Solve using Similar triangles again
ratio of 4:7.5
3/x=4/7.5 cross multiply
22.5=4x
x=22.5/4=5.625=5-5/8=45/8
Speed = Distance/Time. Let speed be V, distance D and time T
a)Given: D₁ =45km, V₁=x km/h
V₁=D₁/T
V₁=45/T OR T= 45/V₁
b) Given : D₂ =48 km and V₂ = V₁ + 4 km/h
V₂ = 48/T, but V₂ = V₁+4, then:
V₁+4 = 48/T OR T=48/(V₁+4). Since Time is same, then we can write:
45/V₁ =48/(V₁+4), solve for V₁:
45V₁ + 180 = 48V₁
3V₁ =180 and V₁ = x = 60 km/h
21 is 84% of
25Convert the percentage (84) into a decimal by dividing it over 100:

Divide 21 over 0.84:
Answer:
224 million
Step-by-step explanation:
I took the application