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riadik2000 [5.3K]
2 years ago
15

HELP ASAP I NEED HELP WITH MY MATH HW

Mathematics
2 answers:
Eduardwww [97]2 years ago
5 0

Answer:

Step-by-step explanation:

I uploaded a picture hope it helps

Keith_Richards [23]2 years ago
3 0

Answer:

Question 8 is 21, Question 9 is 20.

Step-by-step explanation:

Ratios are very easy if you can find a relationship between them. For #8,  to get from 2 to 6 is to multiply 3. Then we multiply 7 and 3 to equal 21. This will be equivalent ratios. The next one is the same thing, to get from 6 to 24, we must multiply 4. We know that to make it equivalent we must multiply 5 with 4 which equals 20. Also we can do this with proportions  2/7 = 6/x. We cross multiply which equals 2x=42. We solve it like an algebraic equation which equals 21. We set up proportions for 5/6 = x/24. We cross multiply which equals 6x = 120. We solve this like an algebraic equation which equals to 20.

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Twin​ brothers, Billy and​ Bobby, can mow their​ grandparent's lawn together in 53 minutes. Billy could mow the lawn by himself
podryga [215]
5353 minutes = 89.22 hours
Maybe the figures should be 53 and 20??

Let's let Billy = A
The formula to use for work problems is
Time = (A*B) / (A+B)

53 = ( (A +20)* A) / (A +20 + A) )
53 = ( A^2 + 20A ) / (2A + 20)
A^2 + 20A -106A -1060
A^2 -86A -1060
A = 96.935
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3 0
3 years ago
The square on the right is a scaled copy of the square on the left. Identify the scale factor. Express your answer in simplest f
zhannawk [14.2K]

Answer:

x = 21/8

Step-by-step explanation:

So 8 is being multiplied by something to get to 21

So 8x = 21

Solve for x:

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7 0
2 years ago
I need help on my story problems 
victus00 [196]
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Match the mean median mode and range for the data set below 16 9 20 10 12 6 8 15
blsea [12.9K]

Answer:

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Step-by-step explanation:

For the Mean

Add all the numbers up

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Read 2 more answers
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asambeis [7]
X = 1/2 =0.500

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