pre-algebra question needed to be answered please. need to know how many gallons neeeded as an integer

pre-algebra question needed to be answered please. need to know how many gallons neeeded as an integer

I need to add equations and solve it

What are the solutions to the system of equations? x^2+y^2=5 y=2x im so confused

Marie sells outdoor grills. She knows she earns 10% commission on the first $10,000 and 12% on the next $15,000. She does not remember the rate on the sales of more than $25,000. Her total sales of...

5. A fair coin is tossed four times. a. List the entire sample space for this experiment. Use your sample space from part (a) to answer the following questions: b. What is the probability...

The expression '(1/2)mv^2 gives the kinectic energy in joules of an object with a mass of m kg traveling at a speed of v meters per second. What is the kinetic energy of an aircraft with a mass of...

solve by substitution y=3x y=x+4

A car traveling 60 mph on the highway gets 28 miles per gallon. Write a function that represent the distance d (t) in miles that the car travels in t hours.

I really don't understand this one

1. A car traveling 60 mph on the highway gets 28 miles per gallon. Write a function that represent the distance d (t) in miles that the car travels in t hours. 2. Write a function that represents...

A child throws a ball straight upwards to his friend who is sitting in a tree 18 ft above ground level. 1. If the ball leaves his hand at a height of 2 feet with an initial velocity of 40...

a.Simple interest of 5%. b.Interest of 5% compounded monthly(hint: don't round on intermediate steps but round final answer to nearest cent). c. Interest of 5% compounded continuously (hint:...

If a certain number is added to the numerator and denominator of 7/5, the result is 5/4. Find the number?

Need help please. I forgot my algebra book.

Ten times the reciprocal of a number equals 5 times the reciprocal of 10

Solve each equation for the indicated variable

At end of 10 months, the balance of an account earning annual simple interest is $2100. If at the end of 18 months the balance is $2180. How much money was originally in the account? What is the percentage...

Kikis brother is 15 years older than she is. Together they have a total of 43 years. How old is her brother?!

Simplify each equation. 1) 4P2 2)6P4 I wrote my answers to these as such 1) 4P2=4×3×2=24 2) 6P4= 6×5×4=120 Was told to show the work in more detail. Not sure what...

Julie has twice as many CD's as Jack and Ty has 3 times as many as Julie. Write an algebraic expression for the number of CD's each has using one varible.

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