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rusak2 [61]
2 years ago
13

Please help I don’t know how to do this

Mathematics
2 answers:
iragen [17]2 years ago
7 0

Answer:   12. x =7           13. x =6

Step-by-step explanation:

Both angles in the triangle has to equal to each other because they are both equivalent.

Set both expressions equal to each other and solve for x.  

12.  5x =  35    Divide both sides by 5

x =  7  

13.     3x =   5x - 12      Subtract 5x from both sides

        -5x       -5x  

   -2x =  -12      Divide both sides by -2

 x = 6

Dafna1 [17]2 years ago
3 0

Answer:

12. 7

13. 6

Step-by-step explanation:

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X= number of hours would it take Jason to wash the van by himself.
2x=number of hours would it take Wendy to wash the van by herserlf.

<span>we calcaulate the fraction of  work by Jason during one hour </span>

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1 hour----------------------   fraction of work during one hour.

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we calculate the fraction of work by Wendy during one hour.
2x hours-----------------------------1 work
1 hour----------------------   fraction of work during one hour.

fraction of work during one hour=(1 hour * 1work) / 2x hours=1/2x

We can suggest this equation:
2 hours(fraction of work by Jason during one hour + fraction of work by Wendy during one hour)=1 work

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least common multiple=2x
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x=6/2
x=3

answer: 3 hours would ti take Jason to wash the van by himself.


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3 years ago
What are the values of x and y
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Step-by-step explanation:

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y = 131

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