If a number is tripledand then reduced by nine, the result is sixty six

what is the expression, equation

Based on tests of the Chevrolet Cobalt, engineers have found that the miles per gallon in highway driving are normally distributed, with a mean of 33 miles per gallon and a standard deviation of 4 miles per gallon.

Do all composite numbers share a gcf that is greater than 1? explain

Suppose compact fluorescent light bulbs last, on average, 10,000 hours. The standard deviation is 500 hours. What percent of light bulbs burn out within 11,000 hours? How do you show your work for this problem. I dont know how to solve it.

Select the number property that will justify the step in the following expression. 4 • 13 • 25 = 4 • 25 • 13 = 100 • 13 = 1,300 which one? Commutative-Addition, Identity-Multiplication, Commutative-Multiplication, Transitive

How do you write a inequality for the ticket is at most $10

In mrs. romano's math class of 25 students, 8 of the the students play a musical instrument. What percent of the class plays a musical instrument

Edoardo thinks of a number between one and 20 that has exactly 5 factors what number is he thinking of?

Can be expressed as the sum u=v+w, where v satisfies the initial conditions

A box of 100 computer chips contains eight defective chips. suppose we selected a random sample of 10 chips from that box. find the probability that the sample had: a. at least one defective chip b. all defective chips c. nine defective chips d.

What is the answer to this question 2 (3x-5) + 3 (2x+3)