Use elimination to solve

2x+3y=4

4x+6y=-5

A ladder 10 ft long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 0.8 ft/s, how fast is the angle between the ladder and the ground changing when the bottom of the ladder is 8 ft from the wall?

Avarie is cutting a 12 foot long piece of wood into 1/4 - foot sections. How many sections will result

Jessi has 9 feet of blue fabric. She need one third of that amount in red fabric. The fabric store sells fabric by the yard. How much fabric does Jessie need to buy?

A circle has the equation x2 + y2 = 9. What is the length of the radius?

Sam ran at 6km/h for 2h 20min what distance did he run

The printer charges $4 per book to print it, and you spent $3500 on advertising. you sell the book for $15 a copy. How many copies must you sell so that your income from sales is greater than your total cost?

A roller coaster can accommodate 346 rider in 20 minutes. How many riders could ride in 90 minutes?

You have $12 to buy five goldfish for your new fish tank. Write and solve an inequality that represents the prices you can pay per fish.

Adam has 16.45 kg of flour, and he uses 6.4 kg to make hot cross buns. The remaining flour is exactly enough to make 15 batches of scones. How much flour, on kg, will be in each batch of scomes?

Rebecca has 30 paintings to sell. the amount of money rebecca makes from selling x paintings is represented by a function.