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Tom [10]
3 years ago
12

I need help with 7 and 8, thanks.

Mathematics
1 answer:
jeka57 [31]3 years ago
8 0
Question 7:

Set up a ratio:

<u>388 students</u> = <u>x students
</u>1552 cartons     2820 cartons<u>

</u>Cross multiply and divide. 388 X 2820 = 1094160 / 1552 = 705 students

Question 8:

Add up hours and divide by people working.
5+9=13/2= 6.5 hours
<u />
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Rearrange the equation so u is the independent variable.<br> -12u + 13 = 8w – 3<br> T
ANTONII [103]

Answer:

u= -2w/3 + 4/3.

Step-by-step explanation:

Subtract 13 from both sides

-12u = 8w -16

Multiply both sides by -1/12.

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Phone records between 5 (2x-3)=4 (x-2)​
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answer) 7/6

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10x- 15 = 4x-8

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Find the slope of the line 8x-2y=11
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By rearranging the equation to be this : y=4x-5.5
6 0
3 years ago
Your town has seen a steady decrease of job opportunities by the amount of 10% every year. If the number of jobs available at th
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7 0
3 years ago
The lengths of the sides of an equilateral triangle are 3(x + )cm, (5x +2y-1) cm and 5x +1 Cm Find the side length of the triang
pochemuha

Answer:

Correct option is A

Since it is an equilateral triangle, the lengths of the sides are equal

So, x+3 y=3 x+2 y−2=4 x+

2

1

​

y+1

x+3 y=3 x+2 y−2

y=2 x−2

2 x−y=2 ...(1)

Also, 4 x+

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1

y+1=x+3 y

8 x+y+2=2 x+6 y

6 x+2=5 y

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Multiplying e q(1) by  5 we get,

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Subtracting e q(2) from e q(3) we get,

4 x=12⇒x=3

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