X/10 = 10/4x
4x^2 = 100
x^2 = 25
x = 5
answer
5 units
Answer: 51
Step-by-step explanation:
let x be the number.
(70%)x = 42
0.7 x = 42
x = 60
we check 15% x 60 = 0.15 x 60 = 9, which is true.
85% of that number = 85% x 60 = 0.85 x 60 = 51.
d+p/20% Step-by-step explanation:
Answer:
<u>The correct answer is A. The distance traveled depends on the number of hours traveled. </u>
Step-by-step explanation:
Let's recall that:
1. The formula of the speed is distance/time
2. If the speed is constant, like the train in our problem, which is 45 miles per hour, then we can assume it as a value of 1 and a we can confirm a direct relation between the distance traveled and the number of hours traveled, this way:
Speed = Distance/Time
Distance = Speed * Time
Distance = 1 * Time
Distance = Time
This means the longer you stay in the train, the more miles you will travel or the more hours you travel by the train, the more distance you will cover.
<u>The correct answer is A. The distance traveled depends on the number of hours traveled. </u>
