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Lisa [10]
3 years ago
13

Cynthia ran 4 laps in 40 min.   What is the rate of number of laps to minutes?

Mathematics
2 answers:
fomenos3 years ago
7 0
1 lap to ten minutes or 1:10 due to the fact that it takes ten minutes to run one lap. hope this helps, have a nice day :)
Anna35 [415]3 years ago
5 0

The answer is 1:10 because 4 to 40,

there is 1 for every 10.

So in fractional form your answer is 1/10.


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(9a^2 + 7a + 8) - (2a^2 + 5a + 1)
Sergio [31]

Answer:  7a^2+2a+7

Step-by-step explanation:Distribute the Negative Sign:

=9a2+7a+8+−1(2a2+5a+1)

=9a2+7a+8+−1(2a2)+−1(5a)+(−1)(1)

=9a2+7a+8+−2a2+−5a+−1

Combine Like Terms:

=9a2+7a+8+−2a2+−5a+−1

=(9a2+−2a2)+(7a+−5a)+(8+−1)

=7a2+2a+7

8 0
2 years ago
Which expression is equivalent to 10√5<br>A. √500<br>B.√105<br>C.√50<br>D.√15
julsineya [31]
50 is the answer to this question
3 0
3 years ago
The federal government requires a car manufacturer to have a minimum miles per gallon (mpg) average over the models it makes. Su
valentinak56 [21]

Answer:

25 mpg

Step-by-step explanation:

We have a set of values 19, 21, 22, 28  and 18  

The average (which is the mean of the set of values )  is :

19 + 21 + 22 + 28 + 18 = 21.6 mpg   out of the government requirement

So we need a value such as the mean become at least 25 mpg

We have to solve the equation:

(19+21+22+28+ x)/ 5  = 25

 (90 + x ) /5  = 25       ⇒   90 + x = 125   ⇒   x = 35 mpg

If we get the mean of the set of values including 35 we have:

(19 +21+ 22+ 28 + 35 ) / 5   =  25 mpg  government requirement

7 0
3 years ago
I have to be awake at 5am and it’s about to be 12am so can someone please help me with this 7th grade math homework
finlep [7]

Step-by-step explanation:

Divide the denominator by the numerator to find the percentage

5 0
3 years ago
Find the 15th term in the following<br> arithmetic sequence :<br> 1, 6, 11, 16,
Sunny_sXe [5.5K]

Answer:

71

Step-by-step explanation:

This arithmetic sequence starts at 1 and increases by 5 every time. The formula for this sequence could be expressed as A(n) = 1 + 5(n-1).

Since you're finding the 15th term, substitute n = 15 into the formula.

A(15) = 1 + 5((15)-1) = 1 + 5(14) = 1 + 70 = 71

6 0
3 years ago
Read 2 more answers
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