06/05/19

Math Homework Problem

An executive invests $28,000, some at 8% and the rest at 5% annual interest. If he receives an annual return of $1,970, how much is invested at each rate?

06/05/19

What are the odds of guessing 7 random cards, suit and number. In a row with reshuffle after each pick?

Had someone draw a card at a time reshuffle after each one and guessed 7 in a row suit and number. 52 cards in the deck. No tricks just dumb luck and was curious about the odds.

06/04/19

Amy and Eugene each improved their yards by planting hostas and ivy.

Amy and Eugene each improved their yards by planting hostas and ivy. They bought their supplies from the same store. Amy spent $216 on 10 hostas and 8 pots of ivy. Eugene spent $228 on 5 hostas and... more

06/04/19

Help with ACT math prep

The value of a used car can be modeled by the formula V=Vo(1-r)^t where Vo is the car's purchase price, in dollars; r is the car's constant annual rate of decrease in value, expressed as a decimal;... more

06/04/19

HELP, Please! Math :open ended explain

What is the surface area and volume of the sphere shown below?

06/04/19

need help with a Simple Elimination

4x+ 6y = 10 -4x -2y = 2is this right(3,-7)

06/04/19

Use t for the numbers of hours

To rent a certain meeting room, a college charges a reservation fee of $14 and an additional fee of $5 per hour. The chemistry club wants to spend at most $44 on renting the room . What are the... more

06/04/19

6 times the difference of a number and 1 is 3 times the sum of three times the same number and 5.What is the number?

6 times the difference of a number and 1 is 3 times the sum of three times the same number and 5.What is the number?

06/04/19

Three equivalent equations for f(x) are shown. Select the form that reveals the value of the x-intercepts without changing the form of the equation.

A. f(x)= -2x2 +4x +6B. f(x)= -2(x-1)2 + 8C. f(x)= -2(x-3)(x+1)

06/02/19

Maths logarithms

Log3x - log2x - 6logx =0

06/01/19

Trig ferris wheel problem help?

Here are some facts about a given ferris wheel: - The diameter of the wheel is approximately 472 feet - Assume the bottom of the wheel is 9 feet off the ground - It takes 36 minutes for this wheel... more

06/01/19

Solve -(x+7)=3x-14

05/31/19

Electrolyte powder conversion - 5 gallons to 16 oz bottle of water

Instructions on a 57 oz can of electrolyte powder says to dump it all into 5 gallons of water. I need to know how much powder to use for a 16 oz water bottle for a backpack trip.

05/31/19

(x−3)^ 4/3 =625 SOLVE THE EQUATION. solve for X

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