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Luba_88 [7]
3 years ago
8

Peter left his home in Chicago and drove to a town a few hours away. On the way there, he drove 40 mph due to traffic, but on th

e way back home, he drove 60 mph. What was his average speed?
Mathematics
1 answer:
Orlov [11]3 years ago
4 0

Answer:

50 mph

Step-by-step explanation:

To calculate averages you add up all the items and divide by the total number of items there is.In this problem were 2 items so you divide it by 2

Add the two numbers

40+60=100

now just divide by 2 because there was 2 drives giving you 50 mph

Hope this helps!

:)

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(x+12) (3x+2)<br> Find the value of X
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Step-by-step explanation:

Equation at the end of step 1

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STEP2:Trying to factor by splitting the middle term

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The first term is,  3x2  its coefficient is  3 .

The middle term is,  -38x  its coefficient is  -38 .

The last term, "the constant", is  +24 

Step-1 : Multiply the coefficient of the first term by the constant   3 • 24 = 72 

Step-2 : Find two factors of  72  whose sum equals the coefficient of the middle term, which is   -38 .

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Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -36  and  -2 

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Step-4 : Add up the first 2 terms, pulling out like factors :

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              Add up the last 2 terms, pulling out common factors :

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Step-5 : Add up the four terms of step 4 :

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(x - 12) • (3x - 2) = 0

STEP3:Theory - Roots of a product

 3.1    A product of several terms equals zero. 

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Solving a Single Variable Equation:

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Solving a Single Variable Equation:

3 0
3 years ago
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taurus [48]

12 more boys than girls

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7 0
3 years ago
Thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
stiks02 [169]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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How did they get the -5? I got -3
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