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Sidana [21]
3 years ago
7

judy got 117 problems right on a math test in her night school class. She got a score of 78% right. How many problems were on th

e test?
Mathematics
1 answer:
scZoUnD [109]3 years ago
6 0
You would set this up as Part÷Whole=Percent÷100
Part=117
Whole= X
Percent=78
117÷X=78÷100
Set these up as fractions and cross multiply. You will get 117×100=78X
117×100=11,700
Divide both sides by 78 and you get x=150
There were 150 problems
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Answer:

24,48,72

Step-by-step explanation:

multiples of 6- 6,12,18,24,30,36,42,48,54,60,66,72

multiples of 8- 8,16,24,32,40,48,56,64,74,80

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3 years ago
How do you do this simultaneous equation?
tatiyna
The y is the same for both equations. Equate them
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y = - x - 5
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So that point is where the two equations meet.

To see the graph of your question on the internet, go to 
Wolframalpha.com 
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y = -x - 5; y  = 2x + 4  Note the semi colon in the middle.

To the moderator: This is my own work. I'm using Wolfram to get the answer.
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ki77a [65]

Answer:

35

Step-by-step explanation:

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hope this helps mark me brainliest if it helped

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Answer:

<h2>First quadrant will the line not pass.</h2>

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