What is this solution for x?

10000=20000 (0.85) ^x

Many older homes have electrical systems that use fuses rather than circuit breakers. A manufacturer of 40-amp fuses wants to make sure that the mean amperage at which its fuses burn out is in fact 40.

Ella simplifies (3b+4r) + (-2b-r) and says the result is b+5r. what error did ella make

The bicyclists were 300 miles apart at 3 p. m. and were headed toward each other. If they met at 9 p. m. and one was traveling 20 miles per hour faster than the other, what was the speed of each bicyclists?

In triangle ΔABC, ∠C is a right angle and CD is the height to AB. Find the angles in ∠ACD and ∠BCD if: m∠A = 65°

Abba grew 1 foot over the past year. He is now 5 feet tall

Which of the following describes the graph of y=x^2-144? The graph has zeroes at x = - 12 and x = - 12 and it opens downward. The graph has zeroes at x = 12 and x = - 12 and it opens downward.

You deposit $700 in an account paying 7.7% simple interest. Find the future value of the investment after 2 years. (Enter a number. Round your answer to two decimal places.)

What are two expressions where the solution is 19

The sum of two numbers is 17. The difference between the larger number (x) and the smaller number (y) is 7. What is the value of the smaller number?

10 kilograms = ? grams