Solve systems of 2 linear equations by using the linear combination method

4). - 15x-2y=-31 4x+6y=11

5). 7x+2y=-3 - 14x-4y=6

6). - 5x+2y=-10

Madam Siti bought the same lengths of red and yellow ribbons. After she used 836 cm of the red ribbon, the length of the yellow ribbon was 5 times the length of the remaining red ribbon. What was the original total length of the two ribbons?

Make a list of possible pairs of numbers that have an LCM of 48

Wilma used 25 square cm. of construction paper to make a card in the shape of a square. She put a lace border around the card. How many inches of lace did Wilma use?

What is the gcf of 56 and 14

One less than 4 times a number is equal to five times the same number math

If John has 13 more Apple than jake and Mary has 26 less that jake and all together they have 236 apples how many Apple does each person have

Which of the following is a perfect square? 65, 144, 68, 131

What does Pythagorean Theorem do or find? (100 PTS) !

A car is 210 inches long. A trubkis 60% longer than the car. How long is the truck?

2p - 1/q = r/q + 4, subject q