MATHEMATICS MIDDLE SCHOOL

Solve the inequality for W:
5W - 23 < - 3 (3 - 4W)

Answers

Answer 1
Answer: 5w−23<−3(3−4w)

Simplify both sides of the inequality.

5w−23<12w−9

Subtract 12w from both sides.

5w−23−12w<12w−9−12w

−7w−23<−9

Add 23 to both sides.

−7w−23+23<−9+23

−7w<14

Divide both sides by -7.

−7w/−7 < 14/−7

w > −2

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I need to find x by factoring but I was absent the day we reviewed and forgot from last year: the question is: If x^2+3x = 9x -8 what is the value of x?

Answers

x²+3x = 9x - 8

Subtract 9x on both sides

x² - 6x = -8

Add 8 on both sides

x² - 6x + 8 = 0

Now you need to find the factors of 8(numbers that multiply to equal 8) that add or subtract to -6.

Factors of 8: 1, 2, 4, 8

2 and 4 add up to 6, if they are both negative they equal -6.

(x - 2)(x - 4) = 0

x - 2 = 0

x = 2


x - 4 = 0

x = 4


x = 2, x = 4

The length of three sides of a triangle are 3x + 1/2, 2x +1/4, and x +1/2.Use the drop-down menu to complete the answer.

Answers

Answer: x= 41

Explanation: Angles 1 and 2 have to equal 180° since they are supplementary. So you put 3x+2x-25=180, you then add like terms. 5x-25=180 Then you have to isolate x, so you add 25 to both sides of the equation. 5x=205, then you divide both sides by 5. So your answer is x=41.

You can check to make sure by plugging in x for 41 .

Hope this helps!

manny draws three regular pentagons to create the shape shown below. the perimeter of one of the pentagons is 45 inches. what is the perimeter of Manny's new shape?

Answers

because she used three pentagons in her new shape
We will multiply 45 into 3
So the answer is 135 inches.

Answer:

24 i got it right

Step-by-step explanation:

Tom makes $216.80 in 4 days. how much does he make in 2 days

Answers

Answer:

$108.4

Step-by-step explanation:

Divide $216.8 by 4 to find the amount of money Tom makes in 1 day:

== $54.2 per day

We are looking for money Tom makes in TWO days, so multiply the value we just found by 2:

$54.2*2

==$108.4

Hey!

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Steps To Solve:

~Divide

216.80 / 4 = $54.2 (in 1 day)

~Multiply

54.2 x 2 = 108.4 (in 2 days)

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Answer:

Tom makes $108.4 in 2 days.

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Hope This Helped! Good Luck!

the perimeter of the top of a desk is 54 inches . if the length of the desk is 15 . what is the is the width of the desk

Answers

Perimeter=2width+2length\n\nlength=15\n\nperimeter=54\n\n54=2*15+2width\n\n54=30+2width\ \ \ | subtract\ 30\n\n24=2width\ \ | divide\ by\ 2\n\nwidth=12inches
12 is the width because a desk is usually a rectangle so if the length on one side is 15 the other is also 15. So 15 + 15= 30. Then if you subtract 55 by 30 you get 24. Nd there's two side so if u do 24 divided by two u get 12

Brad drives 527 miles on 17 gallons. How many miles does Brad drive on one gallon?

Answers

31 miles an hour just divide 527 by 17

Answer:

31 miles per hour

Step-by-step explanation:

527/17 = 31 miles per hour when you divide the two your taking your miles that the car drove and the gallons it needed and getting your answer from that

hope this helps and make me brainliest please

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