Solve the following system of equations and select the correct answer below:

3x + 3y + 2z = - 5

x + y + 3z = - 4

3x - y + 5z = - 8

Suppose ken has 25 coins in nickels and dimes only with a total of $1.65. How many of each coin does he have?

The date of death for a widow was 2019. If the estate was valued at $2,186,000 and the estate was taxed at 40 percent, what was the heir's tax liability? Use Exhibit 19-6 for Estate Exemption.

the length of one leg of a right triangle is 6 feet. the length of the hypotenuse is 2 ft longer than the other leg. Find the length of the hypotenuse in the other leg.

a 54-inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third piece is 5 times as long as the first piece.

Si Ana diese 10 libros a Alicia, ambas tendrían la misma cantidad de libros. Si Ana tuviera 10 libros más, tendría el doble que Alicia. Calcula cuantos libros tiene cada una.

Four cards are drawn from a standard deck. Cards are not returned. Which is more likely: - Event A: drawing a straight (4 consecutive cards) - Event B: drawing 4 consecutive face cards

Explain how to simplify the expression (12m^5/15m) ^3 without raising each factor in the parentheses to the third power and next reducing the result.

A spherical water tank holds 7500 feet^3 of water. what is the diameter?

In ΔQRS, the measure of ∠S=90°, the measure of ∠Q=29°, and RS = 83 feet. Find the length of SQ to the nearest tenth of a foot.

2. A manufacturing company uses cylindrical storage tanks with a diameter of 40 ft and a height of 80 ft, as shown below. a. What is the volume of the storage tanks? Round your answer to the nearest cubic foot. Show your work. b.