Solve the system of equations by substitution

2x+y=10

Y=5x-11

a restaurant holds 150 diners. when you arrive and are finally seated, the resterant is 2/5 full how many diners are in the restaurant

The perimeter of a rectangular swimming pool is 446 centimeters. The width of the pool is 7 centimeters less than the length of the pool. Find the length and the width of the swimming pool.

The area of a rectangular knitted blanket is 15x2-14x-8. What are the possible dimensions of the blanket? Use factoring.

At a grocery store, an uncooked beef roast is on sale for $4.99/lb. At the same store, prepared roast beef is at the deli for $2.99/100g. How many times more expensive is the deli roast compared to the uncooked roast?

Van was asked to add 46 to 37 and round the result to the nearest ten. He figured that since he was going to have to round anyway, he might as well do it before adding the numbers. He rounded 46 to 50 and 37 to 40, thus getting an answer of 50+40=90.

Can a 14 inch umbrella fit inside a suitcase that has dimensions of 9" x 12"? Explain.

one side of a triangle is 6 meters more than twice the shortest side. the third side is 9 meters more than the shortest side. the perimeter is 25 meters find all three sides

Halfway through a bus route, 23 students have been dropped off and 48 students remain on the bus. write an equation to determine whether there are 61 or 71 students on the bus at the beginning of the route.

In January 2017, Yucca Corporation purchased a mineral mine for $6,400,000 with removable ore estimated by geological surveys at 2,000,000 tons. The property has an estimated value of $500,000 after the ore has been extracted.

What is 5 8/9 - 3 1/6