On a math test, Stephen missed 3computation problems and 1 wordproblem for a total of 9 points off. Brad missed 2 computationproblems and 2 word problems for atotal of 10 points off. Thisrelationship can be represented bythe system of equations below, wherexstands for the point value ofcomputation problems missed andystands for the point value of wordproblems missed.3x+y=92x+2y=10What is the point value for eachword problem? A.2points
B.2 1/4points
C.2 1/2points
D.3 points

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.

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d

step-by-step explanation:

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

it would rotate about 180 degrees.