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3 years ago

Solve –4(6x + 3) = –12(x + 10). A. x = 2 B. x = 9 C. x = 5 D. x = –5

1 answer:

6 0

–4(6x + 3) = -12(x + 10)
 -24x - 12 = -12x - 120
12x = 108
x = 9

answer
B. x = 9

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To find the average, find the mean: add all the numbers together and divide by the number there is.

First add all the numbers together:
39 + 43 + 28 + 36 + 29 = 175

Next, divide 175 (the total) by 5 (because there are 5 numbers)

175/5 = 35

35 is your average.

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The base of a triangle exceeds the height by 3 cm if the area is 170 cm² what is the length of the base and the height of the tr

Strike441 [17]

Hey there!!

How do we find the area of a triangle?

Ans - Formula = ( 1 / 2 ) ( base ) ( height )

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Let' get this into an equation :

( 1/2 ) ( x ) ( x + 3 ) = 170

... ( x / 2 ) ( x + 3 ) = 170

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Subtract 340 on both sides

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We can write this as

... x² - 17x + 20x - 340 = 0

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3 years ago

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The length of the hypotenuse of a right triangle is 16 inches. If the length of one leg is 5 inches, what is the approximate len

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$\begin{gathered} y=1.35x \\ y=1.35(4) \\ y=5.4 \end{gathered}$

2) If x=2

$\begin{gathered} y=1.35x \\ y=1.35(2) \\ y=2.7 \end{gathered}$

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1 year ago

There are 20 students in my class. Each student needs: .2 cups, 2 plates, 1 party hat and a pair of earphones. My teacher has 2

garik1379 [7]

Answer:

Simple, no. This would not be enough.

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This is because you mentioned that there are 20 students and each of them needed 2 plates. So, there would need to be at least 40 plates. Forks seem irrelevant in this question but if the teacher has 8 plates in 1 box and another 8 in the second box, that would sum up to 16 plates that are available. And the fact that the box doesn't even include the other items, should hint the lack of items available for the students.

This question seemed worded differently. But tried my best. :)

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