What is the solution of the system using the substitution method?

y + 7 = 3x

6x - 2y = 12

0.2 repeating is approximated to 0.3?

Find the product of 2 5/6x 1 3/4

Roland's heart beats 495 times in 6 minutes. At that rate, how many times would it beat in 20 minutes?

What is one times one times four times twelve divided by three divided by two times nine minus twelve divided by twelve times one hundred twenty-three million, four hundred fifty-six thousand, seven hundred eighty-nine?

A bottle contains 20fluid ounces of lotion and sells for $5.80. The 20-fluid - ounce bottle contains 125% of the lotion in the next smallest size, which sells for $5.12. Which is the better buy. Explain.

Solve the formula for the indicated variable Force: f = ma; solve for m

Suppose that $88 comma 00088,000 is invested at 3 and one half3 1 2 % interest, compounded quarterly. a) find the function for the amount to which the investment grows after t years

What is 17,628 divided by 452?

Make d the subject of the formula a=cd

What is 5x-9=7x+6-2x