Answer:
3x-y=15 should be the answer
Why can’t you do all this work dog? yk? like it’s okay to learn
Answer:
Speed of plane in still air = 825 km/h
Step-by-step explanation:
Given:
Speed of plane with the wind is 145 km/h faster than what it would have with still air.
Speed of plane with wind = 970 km/h
To find speed of plane in still air.
Solution:
Let speed of plane in still air be =
km/h
Thus speed of plane with wind would be given as =
km/h
Speed of plane with wind is given =970 km/h
So, we have:

Solving for
.
Subtracting both sides by 145.

∴
km/h (Answer)
Thus, speed of plane in still air = 825 km/h
Answer:
93.5
Step-by-step explanation:
0 and 3 are in the tenths place value
9 and 6 both increase when rounding
55.1 + 38.4 = 93.5
Answer:
k = 13.5
Step-by-step explanation:
Setup proportion and solve for k:
