Pls help

Mathematics

2 answers:

ss7ja [257]3 years ago

7 0

were you happy with the first answer? I can comment mine if needed. Just let me know. :)

mihalych1998 [28]3 years ago

4 0

it's really just your own opinion of which is difficult or easier but in my opinion Substitution is more difficult because you have to substitute in the different equations, and it can take more time. I personally like Elimination best because it cancels out variables and can be quicker to use. hope this helps:)

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Wewaii [24]

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Step-by-step explanation:

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2 years ago

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Michael drove his car for 150 minutes at a constant speed of 75 miles per hour and then for another 2 hours at a constant speed

swat32

Answer:

he traveled a total of 349.5 miles.

Step-by-step explanation:

*First we convert the 150 minutes to hours, that is :

$h=\frac{1.150}{60} \\h=2.5$

Now we determine the distance Michael traversed during those 2.5 hours:

$d_{1} =2.5.75 \\d_{1} =187.5\\$

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We also determine the distance he tranversed the two remaining hours:

$d_{2} =2.81 \\d_{2} =162$

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Finally we add both traversed distances:

$d_{t}=187.5+162 \\d_{t} =349.5\\$

So , he traveled a total of 349.5 miles.

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