Solve the following system of equations using substitution.

5y = x - 15

-3y = - 12x - 9

What is the value of x?

(Enter as a fraction)

3) Which is greater 3rd root of√643 or 4rth root of √1284?

Formula for 1/9 divided by 2/3

Dayren is driving ti visit family. She drives at an average of 65 miles per hour. She drives 227.5 miles before lunch and then 97.5 miles after lunch. How many hours did she spend driving?

Josh has solved for x in the inequality below. 5-2x>3-2x>-2x>1 Choose the statement that is true regarding Josh's work shown above. A The solution is incorrect. Josh should have added 2x on both sides. B The solution is incorrect.

Todd begins piano practice at 4:15pm. and ends at 5:50pm. How long dose he practice

Which equation represent two less than a number is equal to 10

6. Regroup the numbers in the following problems, putting the numbers that add up to 10 or a multiple of 10 in parentheses. a. 2 + 9 + 8 b. 3 + 5 + 4 + 7 c. 4 + 2 + 16 d. 31 + 4 + 9

Three clever monkeys divide a pile of bananas. The first monkey takes some bananas from the pile, keeps three-fourths of them, and divides the rest equally between the other two.

Suppose that the event of picking a face card from a standard deck of 52 cards is considered a success.

Would the margin of error be larger or smaller for 80 % confidence? Explain. A. To be less confident, the interval needs to contain the true proportion more often, so the margin of error would be smaller. B.