A branch of mathematics that uses variables is called?

A builder mixes sand and cement in the ratio 5:2 to make mortar. He wants 14 buckets of mortar. How many buckets of sand and how many buckets of cement does he need?

What is f (x) when x=0.5

What is the probability of picking an o in the word footloose

The manager of a company recorded the number of hourse his employees worked during each two weeks. The following statistics were calculated. Week 1: the mean was 35 hourse with a standard deviation of 1.5 hours.

Devon spends $10 for each shirt he produces, and he has fixed costs of $500. If the store makes 100 shirts, how much should the store charge for each shirt in order to break even?

Solve for x: the quantity of x plus 20 over 2 = 3x x = 10 x = 4 x = - 14 x = - 17

Max delivered 8520 pieces of mail in one year if he delivers the same number of pieces of mail each month about how many pieces of mail does he deliver in two months?

Today robbie is carrying his history textbook and his lunch in his backpack. If the history textbook weighs 2 5/6 pounds and his lunch weighs 1 2/3 pounds, how much weight is in robbies backpack?

Rewrite 5x5x5 using an exponent

Does the infinite geometric series diverge or converge? Explain. 4+12+36+108 + ... A. It converges; it does not have a sum B. It diverges; it has a sum C. It converges; it has a sum D. It diverges; if does not have a sum