Five cubes are lined up in order of size to form a solid. The side of each smaller cube is completely touching the side of the adjacent larger cube. The side lengths of the cubes are 1ft, 2 ft, 3 ft, 4 ft, and 5 ft. What is the surface area of the solid?

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

35-60 students are taking math.

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step-by-step explanation:

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