First, distribute.
{8x-11(x-2)=-8}
{8x-11x+22=-8}
Next, add up the variables.
{8x-11x+22=-8}
{-3x+22=-8}
Then, move 22 to the other side.
{-3x+22=-8}
{-3x=-30}
Finally, divide each side to get your answer.
{-3x=-30}
<em>x=10</em>
20) Answer is: x=76
21) Answer is x=15
Answer:
The speed of the jet is 347 mph and the speed of the wind is 18 mph.
Step-by-step explanation:
We have the following:
x = the speed of the jet in still air.
y = the speed of the wind
we know that the speed is equal to:
v = d / t
therefore the distance would be:
d = v * t
if we replace with the information of the exercise we have:
3 * (x + y) = 1095
3 * (x - y) = 987
we must solve this system of equations, add both equations and we are left:
3 * x + 3 * y = 1095
3 * x - 3 * y = 987
3 * x + 3 * y + 3 * x - 3 * y = 1095 + 987
6 * x = 2082
x = 2082/6 = 347
now to calculate y, we replace:
3 * (347 + y) = 1095
1041 + 3 * y = 1095
3 * y = 1095 - 1041
y = 54/3 = 18
The speed of the jet is 347 mph and the speed of the wind is 18 mph.
Answer:
Step-by-step explanation:
The fruit flies grows geometrically.
Find the value of k.
is number of days.
Answer:
5000x3.00= total sales 15000 x 16% or.16
= 2400
Step-by-step explanation:
1.Find Gross Sales
2. Get retail sales 3.00 x 5000
3. Total Sales times commission 15000 x .16