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pshichka [43]
1 year ago
12

Together Mary, Jane, and Ruth received $30. Mary received $6, Jane received $9, and Ruth received $15. What percent of the $30 d

id Jane receive?
Mathematics
2 answers:
Likurg_2 [28]1 year ago
8 0
Hey there! :D 

So, we know that Jane received $9 out of the $30. 

Divide 9 by 30. 

9/30= .3

Turn that into a percentage. 

.3= 30%

We can check this by finding the other percentages. 

Ruth= 15  15/30= .5 50% 

Mary= 6 6/30= .2 20%

30%+20%+50%= 100% <== this works

I hope this helps!
~kaikers 
almond37 [142]1 year ago
7 0
Total amount = $30

Jane's amount = $9

Percentage of Jane's amount = 9/30 x 100 = 30%

Answer: 30%
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The speed of the jet in still air is 415 mph and the speed of the wind is 19 mph

Step-by-step explanation:

we know that

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Let

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y+x=\frac{868}{2}

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solve the system of equations A and B by elimination

Adds equation A and equation B

y+x=434\\y-x=396\\------\\y+y=434+396\\2y=830\\y=415

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x=19

therefore

The speed of the jet in still air is 415 mph and the speed of the wind is 19 mph

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9514 1404 393

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