Is the number of hours spent studying an explanatory variable

A wise man once said, "400 reduced by 3 times my age is 244." How old is the wise man?

What is the difference when the sum of 5 and 4 is subtracted from the product of 3 and 3

What is 446,221 rounded to the nearest ten thousands

9. Solve the following system of equations 3x - 2y + 4z = 20 -x + 5x + 12z = 73 x + 3y - 2z = 1 Select the appropriate response: A) x = 4, y = 3, z = 5 B) x = 2, y = 3, z = 5 C) x = 5, y = 5, z = 5 D) x = 7, y = 8, z = 5

In an accounting class of 200 students, the mean and standard deviation of scores was 70 and 5, respectively. Use the empirical rule to determine the number of students who scored less than 65 or more than 75? a. About 64 b. About 136 c. About 32 d.

A giraffe runs at a rate of 32 miles per hour. Which equation models the situation? h = time spent running, in hours d = distance run in miles 32h = d 32d = h h = 32 + d h = 32 - d

If mUTV < mUTS < mSTR, which statement is true?

Suppose today is Friday, what day of the week will be 65 days from now?

18. What is the length of the 2nd base of a trapezoid if the length of one base is 27 and the length of the midsegment is 19? Show your work.

Equivalent expression for 12x-10