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2 years ago

PLS HELP ME ASAP FOR 12 AND 14!! (MUST SHOW WORK!!) + LOTS OF POINTS!!

Mathematics

2 answers:

nignag [31]2 years ago

5 0

R for ?
14) 96x1=24r
96=24r
r= 4

Advocard [28]2 years ago

3 0

Both of these problems are proportions. To solve proportions you cross multiply.
#12
4/(-1/2) = 6/x
4x = (-1/2)*6
4x = -3
Divide both sides by 4
x = -3/4
#14
96/24 = x/1
24x = 96
Divide both sides by 24
x = 4

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Complete the missing value in the solution to the equation.

OverLord2011 [107]

Y= 5

5(8) - 2(5)

40 - 10 = 30

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3 years ago

I rlly need this answer pls help

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Answer:

Step-by-step explanation:

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2 years ago

A dog trainer has 96 ft of fencing that will be used to create a rectangular work area. Encloses area of 320 ft^2. What will be

Anastaziya [24]

Answer:

<em>The dimensions of the area will be 8 ft x 40 ft</em>

Step-by-step explanation:

<u>Area and Perimeter</u>

The perimeter can be understood as the distance measured around a shape. The area gives us the idea of the space occupied by the shape. Being w and l the width and length of a rectangle, the perimeter and areas can be computed as follows

$A=wl$

$P=2w+2l$

The dog trainer has 96 ft of fencing to cover a $320 ft^2$ rectangular area. This means that

$wl=320$

$2w+2l=96$

A system of equations is formed

$\left\{\begin{matrix}wl=320\\ 2w+2l=96\end{matrix}\right$

We divide the last equation by 2

$w+l=48$

solve for w

$w=48-l$

Replacing in the first equation

$(48-l)l=320$

Operating and arranging

$l^2-48l+320=0$

$(l-8)(l-40)=0$

We have two possible answers

$l=8,\ l=40$

Which gives us

$w=40,\ w=8$

In any case, the dimensions of the area will be 8 ft x 40 ft

6 0

3 years ago

Judah's family wants to ride the bumper boats at a water park. There are 4 children (c) and 2 adults 9 (a) in Judah's family. Th

zhannawk [14.2K]

Answer:

Yes, the boats are safe to ride.

Step-by-step explanation:

40 (4) + 12 (2) ≤ 500

160 + 24 ≤ 500

184 ≤ 500

184 is less than 500.

because I was not sure if you had 9 adults instead of 2, this is the answer:

40 (4) + 12 (9) ≤ 500

160 + 108 ≤ 500

268 ≤ 500

268 is less than 500

3 0

2 years ago

Read 2 more answers

6/15 divided by 1/7

mylen [45]

Question-
6/15 divided by 1/7

Answer-
Find the reciprocal of the divisor
Reciprocal of 1/7: 7/1Now, multiply it with the dividend
So, 6/15 ÷ 1/7 = 6/15 × 7/1= (6 × 7)/(15 × 1) = 42/15After reducing the fraction, the answer is 14/5In mixed form: 2 4/5

6 0

3 years ago

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