Tyson began solving the system {4x+2y=64x+5y=15 by writing - 3y=-9.

Which property justifies this step?

division property of equality

multiplication property of equality

substitution property of equality

subtraction property of equality

8 more than the number of children is 24

The length of a rectangle is 3 cm greater than its width. The perimeter is 24 cm. Find the dimensions of the rectangle.

Tetras cost $3.99 each. you can spend at most $25. how many tetras can you buy for your aquarium

The annual rainfall last year for Wallingford, Michigan was 61 inches and the annual rainfall this year was 32 inches. What was the change in rainfall between the rainfall last year and the rainfall this year?

Travis sold g cartons of grapes and s cartons of strawberries. Write an algebraic equation to represent how many cartons were sold,

mrs. rodriguez is planting grass in his backyard that is 2 1/2 feet by 1 1/4. i need to find the area to find the correct number of seeds to plant

What is 5.8883 rounded to the nearest hundredth

Complete the square for x2 - 6x = 5.

Part B The seventh-grade class earned 40% of the selling price of each flower. In September, they sold 900 flowers. In October, they sold 700 flowers. Select a choice from each drop-down menu to make a true statement.

Which of the following is a true statement? Select one: a. There is a long-run trade-off between inflation and unemployment. b. The short-run Phillips Curve is horizontal. Ć There is no trade-off between inflation and unemployment in the long run. d.