Astudent bought one box of crayons and 5 reams of paper for $54. she bought five boxes of crayons and three reams of paper for $50. what is the cost of each box of crayons and each ream of paper?

The cost for a box of crayons is $4 and the cost for a ream of paper is $10

Step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.