4x+3y=47.50

7x+1y=47.00

How do you do the substitution?

A crane able can support a maximum load of 15,000 kg. If a bucket has a mass of2,000 kg and gravel has a mass of 1,500 kg for every cubic meter, how many cubicmeters of gravel can be safely lifted by the crane?

Tom found some foreign coins in a box. The coins were marked m, a, t, h his uncle told him that each letter on the coin has a different value in $us. M = $10, a=$5, t=$50 and h=$100. If Tom found 3m coins 5t coins 2h coins and 7a coins.

What's the perimeter of a square with a side measurement of 6 inches

Jordan bikes at a speed of 8 2/3 mph, how many miles will he bike in 3 hours and 6 minutes

Arun's restaurant bill is $58, and he wants to leave the waiter an 18 percent tip. What will Arun's total bill be?

What are the 12 rules of shading inequalities?

A club with nine girls and six boys is choosing two representatives to meet with the other clubs. The probability that the club chooses a girl and then a boy for the representative spots is.

How do you calculate the volume of a rectangular prism?

Pencils come in packs of 10 they are 18 packs in a box how many packs of pencils are there in all

Mavis spends 1 1/4 hours on the bus every weekday. How many hours is she on the bus each bus?