Juan and Jaquan work for separate companies. Juan earns $15 for each sale plus 5% commission. Jaquan earns $21 for each sale plus 3.5% commission. In July, Juan made 35 sales and Jaquan made 29 sales. They made the same total salary. Which equation can be used to find x, the amount Juan & Jaquan each had in sales in July?

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: