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earnstyle [38]
3 years ago
14

Which of the following high speed trains are traveling at a rate of 150 miles per hour? A: a train that travels 100 miles in 2/3

hour B:A train that travels 160 miles in 5/6 hour C:A train that travels 125 miles in 4/5 hour or D: A train that travels 90 miles in 3/5 hour
Mathematics
1 answer:
kondor19780726 [428]3 years ago
8 0

Answer:

A)

Step-by-step explanation:

youjust have to do this:

100 miles-------------------2/3 hour

x-------------------------------3/3 hour or 1 hour

x=100x1/0.6666666667      2/3=0.6666666667

x= 150 miles

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The cost c, to produce b baseball bats per day is modeled by the function c(b)=0.06b^2 - 7.2b + 390. What number of bats should
Finger [1]
You have two choices.
The minimum possible cost to operate your bat factory for a day is $390,
and there are two quantities of bats that both cost that much.

One possibility: 
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                   Cost = 0.06(0)²  -  7.2(0)  +  390  =  $390 per day.

The other choice:
                   Produce  120 bats per day.
                   Cost = 0.06(120²)  -  7.2(120)  +  390
                          = 0.06(14,400)  -  7.2(120)  +  390
                          =      864          -      864      +  390
                          =      $390  per day.

If you produce any other number of bats in a day ... more than zero
but not 120 ... then it will cost you more than $390 to operate the factory
that day.
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3 years ago
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Please help I need help​
FinnZ [79.3K]

Answer:

its option 3;92667

Step-by-step explanation:

6 and 8 is 68 so 9 2667 its 92667

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