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andriy [413]
3 years ago
9

Jim decided to go for a drive in his car. He started out at 0 miles per hour(mph). He then accelerated 20 mph down his street. T

hen, to get on the highway he accelerated another 35 miles per hour. A car was going slow in front of him so he slowed down 11 mph. He then go off the highway, so he slowed down another 7 mph. At what speed was he driving?
Mathematics
1 answer:
sleet_krkn [62]3 years ago
4 0

Answer:

37 mph

Step-by-step explanation:


if he starts at 0 then goes to 20 then add another 35 which gives you 55mph then he slows down you decrease 11 which is 44 then decrease again 7 gives you 37mph

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3 years ago
Ms. Thomas took her family and friend to the movies. There were a total of 16 people. Children tickets cost $6 and adult tickets
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11 adults

Step-by-step explanation:

First, set up a system of equations:

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There is a total of 16 people, so x+y = 16. This is your first equation.

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The total cost of tickets is $129, so 6x+9y = 129. This is your second equation.

Your system of equations is now this:

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You can solve this system using the method of elimination, where we will eliminate the variable x (number of children), since we are focused on y (number of adults).

Multiply the top equation by -6. This will give the following equation:

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               -----------------
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y-values | g h  i  j k l   |
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