Solve using the addition or substitution method.

2x + 4y = 8

x = 3 - 2y

Why does the equation 3x+7=-3x+2+6x have no solution?

The area of the circle above is 1,962.5 units2. What is the circumference of the circle? Use = 3.14. A. 654.17 units B. 981.25 units C. 78.5 units D. 157 units

What should be the first step in solving 13 y - 14 = 42?

The sum of 86, 68, and 38 is 192. What do you also know about the sum of 68, 38, and 86? Explain

For an oblique rectangular prism, find the volume if the height is divided up into 30 sections, with a total height of h = 60cm, l = 10cm, w = 20cm. a. 400 cm3 b. 1,200 cm3 c. 6,000 cm3 d. 12,000 cm3

A market research group is interested in comparing the mean weight loss for two different popular diets. The researcher chooses two random samples of participants for the two diet programs.

How many 4 1 2 inch strips can be made from 45 inches of shipping tape?

B. has 15 marbles and he got 123 more marbles add those two numbers and see what the number rounds to.

In a entertainment programme, 250 tickets Rs. 400 and 500 tickets of Rs. 100 were sold. If the entertainment tax is 40% on ticket of Rs. 400 and 20% on ticket of Rs. 100, find how much entertainment tax was collected from the programme.

A babysitters earnings e are a function of the number of hours n worked at a rate of 7.25 per hour