Assuming you want us to simplify
remember
negative times negative=positive
and
remember the distributive proeprty
a(b+c)=ab+ac
and
-a(b+c)=-ab-ac
oh, and order of operations
so
-4(4/3v-4)-3(1/2v-4)
distribute
-4(-4/3v-4)=-4(-4/3v)-4(-4)=16/3v+16
-3(1/2v-4)=-3(1/2v)-3(-4)=-3/2v+12
so we now gots
16/3v+16-3/2v+12
group like terms
16/3v-3/2v+16+12
combine like terms
first the v terms
16/3v-3/2v=32/6v-9/6v=23/6v
then the constants
16+12=28
so we gets
23/6v+28 is the simlified form
Answer: 53 miles per hour is your answer.
The workers paved at a rate of 2/15 miles per 20 minutes. Now, we need to figure out how far they went in 60 minutes. Since 60 minutes is three times as large as 20 minutes, they will go three times as far. This is equal to 6/15 miles in one hour.
Now, we need to simplify the fraction. We do this by dividing both the numerator and denominator by 3. This equals 2/5. So, in one hour, the workers paved 2/5 of a mile.
