MATHEMATICS MIDDLE SCHOOL

Given that the perimeter of the equilateral triangle is 21, solve for x. Round your answer to the nearest Whole number

Answers

Answer 1

Answer:

The perimeter is the sum of the lengths of the sides. Since the triangle is equilateral, all sides are the same length.

... 3(2x -3) = 21

... 6x -9 = 21 . . . . simplify

... 6x = 30 . . . . . .add 9

... x = 5 . . . . . . . divide by 6

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if a system of equations consists of 2 parallel lines, then how many solutions does it have? plz answer ASAP

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2x + (3 - x) how do I do this

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okay so you would do it like this

2x + (3 - x)

2x + 3 - x

x + 3

the answer would be x + 3

hope this helps!

Following PEMDAS, the parentheses comes first. Essentially, (3 - x) is times 1, which removes the parentheses. So 2x + 3 - x. Subtract the x first. This leaves x + 3.

In right triangle abc shown below what is the degree measure /_C

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I am not sure. Can’t see the question sorry

Describe the number 43 in two ways

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forty-two and 42. word form and standard form.

43 is an odd number

43 is a real number

If you 6,700 marbles and you want to share them equally amongst 20 friends, not using long division but what other strategies can you use to help you solve this problem?