Answer:
0.2
Step-by-step explanation:
Write a proportion.
(54.0 − 49.0) / 1 = (51.75 − 50.75) / x
5 = 1 / x
x = 0.2
Answer:
Step-by-step explanation:
We need to find the area of that semi circle and add it to the area of the rectangle. We can easily find the area of the rectangle with the equation length times width which is 4 *2a or 8a.
The radius is a and since the area of a semi-circle is (pi*r^2)/2, we can get a^2*pi/2.
Therefore, the equation would be
Finding x.
Suzette ran = x
Suzette biked = 4x
7 = x + 4x --) 7 = 5x --) 1.4 = x
Suzette ran for 1.4 hours
Finding y.
Quickest way is to use Suzette biked = 4x and substitute the x for 1.4 to find how much she biked.
4 x 1.4 = 5.6
1.4 + 5.6 = 7 hours the total time exercising
And the mileage adds up to.
5(1.4) + 20(5.6) = 119
u have to combine like terms and should be in order!!!