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docker41 [41]
3 years ago
8

The college athletic director recorded the highest noise levels reached during 7 sporting events. The highs were:

Mathematics
1 answer:
sergiy2304 [10]3 years ago
8 0

Answer:

90

Step-by-step explanation:

Mean:

(88 + 88 + 88 + 87 + 84 + 97 + 95)/7

627/7

89.57

90

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John and Matt are going to fill a pool with 2 different sized hoses. John can fill the pool in 5 hours, while Matt can complete
Gekata [30.6K]
The complete question is
John and Matt are going to fill a pool with 2 different sized hoses. John can fill the pool in 5 hours, while Matt can complete it in 10 hours.How long will it take both to fill the pool? Explain each step in solving this equation.

we know that
<span>John can fill the pool in --------------> 5 hours
</span>therefore
<span>I calculate the amount of pool that John fills in one hour
</span>if John can fill 100% of the  pool in----------------> 5 hours
X--------------------------------------> 1 hour
X=1/5=0.20 pool/hour

Matt  can fill the pool in --------------> 10 hours
therefore
I calculate the amount of pool that Matt  fills in one hour
if Matt can fill 100% of the  pool in----------------> 10 hours
X--------------------------------------> 1 hour
X=1/10=0.10 pool/hour

<span>adding both amounts

(0.20+0.10)=0.30 -----------> 30% pool/hour
then
</span>if both can fills 30% of the  pool in----------------> 1 hour
100%-------------------------------> X
X=100/30=3.33 hours----------> 3 hours + 19 minutes+ 48 sec

the answer is 3.33 hours (3 hours + 19 minutes+ 48 sec)

<span>The equation to determine the amount of pool filling (y) according to time (t) in hours is given by

</span><span>y=0.30*t 

</span>
3 0
3 years ago
Please help!! I keep getting a different answer!!! 14 points!!
erik [133]
Answer : No solutions

(I tried making it as detailed as possible, I apologize if you don’t understand it)

5 0
3 years ago
Carmen can buy bottles of paint for $2.00 each and boxes of colored pencils for $3.50 each. She can spend no more than $42 on ar
Lemur [1.5K]

Answer:

Step-by-step explanation:

Let x = the number of bottles of paint that Carmen can buy

Let y = the number of boxes of colored pencils that Carmen can buy

A bottle of paint costs $2

A box of colored pencils costs $3.50

She can spend no more than $42 on art supplies. This means

She can buy bottles of paint worth 2×x = $2x

She can buy boxes of colored pencils

worth 3.5 × y = $3.5y

Since the total amount she can spend cannot exceed $42, the equation becomes

2x + 3.5y lesser than or equal to 42

This is shown in the attached photo

b) three different solutions to the inequality would be three different possible values that x and y can take. These are

x = 7 while y = 8

x = 10 while y = 6

x = 14 and y = 4

3 0
4 years ago
X2+2x-8 factorised.
SOVA2 [1]

Answer:

( x− 2 ) ( x + 4 )

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help me answer!
kati45 [8]

Answer:

what is the question?

Step-by-step explanation:

4 0
3 years ago
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