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Solnce55 [7]
3 years ago
6

pep club members are making spirit buttons. They make 490 spirit buttons in 3 1/2 hours. Find the number of button pep club make

s per hour
Mathematics
2 answers:
tatiyna3 years ago
5 0
140 should be your answer. 490 divided by 3.5 = 140 :)
lesya692 [45]3 years ago
4 0

Answer:

140 button pep club makes per hour.        

Step-by-step explanation:

Given : Pep club members are making spirit buttons. They make 490 spirit buttons in 3\frac{1}{2} hours.

To find : The number of button pep club makes per hour ?

Solution :

In  3\frac{1}{2} hours they make 490 buttons.

i.e. In 3.5 hours they make 490 buttons.

So, In 1 hours they make \frac{490}{3.5} buttons.

In 1 hours they make 140 buttons.

Therefore, 140 button pep club makes per hour.

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Step-by-step explanation:

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Mrs.Fernandez must drive 6 1/9 miles to work every day. How many miles will Mrs.Fernandez have driven after 12 days of work?
Serjik [45]
Well since we know that for one day Mrs. Fernandez drives 6 and 1/9 miles to work what could we do to get 12 days of work driven.
all we have to do here is multiply 12 and 6 and 1/9 :) lets set this up
    1                                                                 1         12
6 ----  x  12    or lets set this up like this  6 ----  x  -----
    9                                                                9         1

but lets change that whole fraction into an improper fraction 
    1
6 ----  so all we do is multiply 6 x 9 and add the 1 so lets try that 
    9
 6 x 9 = 54 
54 +1 = 55 
hey look we have our numerator!! ( the top number) 
and our bottom number would stay the same as 9 so lets try this again:)
 55
----- now lets plug it in to our problem 
  9

 55        12
-----   x  -----
  9          1

now lets just multiply across

 55        12    = 55 x 12 = 660
-----   x  ----- 
<span>  9          1     = 9 x 1 = 9 
</span>
so now our fraction look like this 
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-------
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but lets make it not look so confusing and divide 660 by 9
660/9 = 73.33333333
again it still looks confusing but we can round it out to beeeee
73
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have a good one and mark me brainliest!

3 0
4 years ago
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5 0
3 years ago
Read 2 more answers
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Shtirlitz [24]

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Step-by-step explanation:

For this case we know that this:

Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69.5 bpm

Part a

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Null hypothesis: \mu =69.5

Alternative hypothesis: \mu \neq 69.5

And we can use a t test procedure in order to check if the true mean is equat to the desired value.

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