Answer:
yes
Step-by-step explanation:
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
Answer:
Delta does not have a relative extreme in the equation, so it is variable y It can not be true
Step-by-step explanation:
There is an answer
The rest of the equation that has no substituted delta is not true, so the prime variables have relative extremes.
X=9
3x-12=x+6
2x-12=6
2x=18
X=9
The answer to B is: HP, HE, H and O, HH, OO, EE, PP, PE, PO, and EO
the answer to a would be 10
