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MrMuchimi
3 years ago
7

Part B: Solve 2a − 5d = 30 for d. Show your work. (6 points)

Mathematics
1 answer:
stich3 [128]3 years ago
3 0
<span>Given Equation: 2a − 5d = 30 

Solution:

2a - 5d = 30

-5d = 30 -2a

d = ( 30 - 2a )/ (-5)

  =  -6 + (2a/5) 

  = (2a/5) - 6

I hope this helps</span>
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Step-by-step explanation:

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2 years ago
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a survey conducted in a school showed that 65% of the students walked to school. The remaining students took buses to school. Th
Feliz [49]
I fear that there is an error copying your assignment.  
65% of the students walked.  Are all of the other students on buses?  Are there both public buses AND private buses?
Assuming that you need to know BOTH kinds of buses, try this:

65% of the students walked, so since 100% - 65% = 35% then this means that 35% of the students were on buses.
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           <u> - .35 S   </u>  =     <u>   - .35 S</u>      Subtract .35 S from both sides
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They want to know how many are on buses and specifically how many are on public buses, if I read this correctly.
   Since the walkers = 65% of 1,2000 and we know of means TIMES, then
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 1,200 total students minus 780 walkers = 420 bus riders

Now, if there is not a misprint and we really have to figure out the public bus riders as compared to the private bus riders, then remember the ratio from above in the question:   4 bus: 3 public buses
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so 3/4 of 420 means 3/4 times 420  = 3 times 105 = 315 public bus riders (which coincidentally leaves 105 private bus riders, but since they are private we don't know much about them.  Ha-Ha..... I made a lame joke.)

So your answer is 315 public bus riders



5 0
3 years ago
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Zina [86]

Answer:

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8 0
3 years ago
3. Find the midpoint between the following points. (-2,-5) and (-3,1) ​
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Answer:

Step-by-step explanation:

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