3 years ago

If the perimeter of the following triangle is 7x-2, what is the length of the unknown side?

Mathematics

1 answer:

Alinara [238K]3 years ago

4 0

7x-2-(3x-9)-(x+7)

=7x-2-3x+9-x-7

=7x-3x-x-2+9-7

=3x

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Solve for x.<br> 5(x-2)-x-5= -3

Paha777 [63]

multiply out brackets

5x-10-x-5=-3

collect like terms

4x-15=-3

isolate x

4x=12

work out x

12/4=3

answer: x=3

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2 years ago

Fred earns $6.50 an hour, plus tips, as a waiter. Suppose he works 26 hours in a week. How much money must he receive in tips to

Sladkaya [172]

X > $60 This might be the answer

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3 years ago

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Select all correct answers

Luden [163]

<h2>Answer = </h2><h2> $= \frac{1}{y {}^{5} x {}^{2} }$ </h2>

Step-by-step explanation:

Greetings !

simplify for variable y first

apply exponent rule

$a {}^{b} .a {}^{c} = a {}^{b +c \\ } \\ y {}^{ - 8}y {}^{5} = y {}^{ - 8 + 3}$

Add/subtract the numbers -8+3=5

$= y {}^{5}$

Apply exponent rule

$a {}^{ - b} = \frac{1}{a {}^{b} }$

Thus,

$y {}^{ - 5} = \frac{1}{y {}^{5} }$

secondly, simplify for the variable x

Apply exponent rule as we made on y

$x {}^{ - 2}$

$x {}^{ - 2} = \frac{1}{x {}^{2} }$

multiply bot the values we get

Hope it helps!

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1 year ago

What is the quotient for the equation above?

Vladimir [108]

Answer:

The correct answer is 32.5

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3 years ago

Read 2 more answers

Find Y (pic attached) (i’ll mark brainliest)

Nadya [2.5K]

Answer:

4y - 4 = 60

4y = 64

Y = 16

Answer is B

I get 60 as it is a equilateral triangle.

Thank you and please rate me as brainliest as it will help me to level up

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2 years ago