X - speed of the current
40+x - speed with current
40-x - speed against current
t-time
(40+x)*t=100
(40-x)*t=60
40t+xt=100
<span> + 40t-xt = 60
</span> 80t =160
t = 2
40t+xt=100,
40*2+2x=100
80+2x=100
2x=100-80
2x=20
x=10 mi/h
10 mi/h speed of the current.
Answer:
40 square meters
Step-by-step explanation:
Hope this helps!!
X=6 that should be the correct answer
Answer:
1,017.36 ft²
Step-by-step explanation:
surface area of the cone = π×r×s
= 3.14 × 13.5 × 24
= 3.14 × 324
= 1,017.36 ft²
Answer:
Step-by-step explanation:
we know that
The scale on a map is 
we can say that
on a map is equal to 
in the actual
so
Convert centimeters to meters
Remember that
