3 years ago

Solve for x

Mathematics

1 answer:

Ivan3 years ago

5 0

9514 1404 393

Answer:

x = 4

Step-by-step explanation:

The measures of all angles in this geometry are 90 degrees.

21x +6 = 90

21x = 84 . . . . . subtract 6

x = 4 . . . . . . . divide by 21

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s2008m [1.1K]

Answer:

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Step-by-step explanation:

set up an equation: (2x)(x+7)=520

now just solve it

2x^2+14x=520

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An entrepreneur buys some microscopes. Each one cost $200 and resells online for $526. What is the mark-up percentage?

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Answer:

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Step-by-step explanation:

Given: Microscopes. Each one costs $200 and resells online for $526.

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