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GenaCL600 [577]
3 years ago
8

2) As part of traffic accident investigations, the speed of a car involved can be approximately determined by checking actual sk

id marks (a) against test skid marks left at 30 mph (p) by the following formula: s= 30*√(a/p)
What speed was the car going if the investigators found the following?
a) a = 144 feet, p = 36 feet b) a = 153 feet, p = 68 feet
Mathematics
1 answer:
dezoksy [38]3 years ago
4 0

a) The speed of car was 60 mph.

b) The speed of car was 45 mph.

Step-by-step explanation:

Given,

a = actual skid marks

p = test skid marks

Formula;

s=30*\sqrt{\frac{a}{p}}\\

a) a = 144 feet, p = 36 feet

Putting in formula;

s = 30*\sqrt{\frac{144}{36}}\\\\s=30*\sqrt{4}\\\\s=30*2\\\\s=60

The speed of car was 60 mph.

b) a = 153 feet, p = 68 feet

Putting in formula;

s=30*\sqrt{\frac{153}{68}}\\\\s=30*\sqrt{2.25}\\\\s=30*1.5\\\\s=45

The speed of car was 45 mph.

Keywords: substitution, speed

Learn more about substitution at:

  • brainly.com/question/10940255
  • brainly.com/question/10941043

#LearnwithBrainly

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3 years ago
Justin drinks 1 litter of water.He drank 2,000 litters at his game.How many during his game and his practice?Explain.
djverab [1.8K]

The question is incomplete. The complete question is :

Justin drinks 1 litter of water during the soccer practice. He drank 2,000 milliliters of water at his game. How many liters of water did he drink during his game and his practice? Explain.

Solution :

It is given that :

During practice, Justine drank = 1 liter of water

During game, Justine drank = 2000 milliliters of water

We know that,

1 liter = 1000 mL

Therefore, during the game, Justine drank :

1000 mL = 1 liter

∴ 2000 mL = 2 liter

So Justine drank 2 liters of water during his soccer game and 1 liter of water during his practice.

7 0
3 years ago
Clarke borrows $16000 to buy a car he pays simple interest at an annual rate of 6% over a period of 3.5 years how much does he p
uranmaximum [27]
<span>Clarke borrows $16000 to buy a car he pays simple interest at an annual rate of 6% over a period of 3.5 years how much does he pay all together?
Let’s calculate
=> 16 000 dollars is the amount he borrowed
=> 6% is the annual interest
=> 3.5 years us the total years that he will be paying it.
Solutions:
=> 16 000 dollars * .06 = 960 dollars is the annual interests
=> 960 * 3.5 = 3 360 dollars for 3.5 years
=> 16 000 + 3 360 = 19 360 dollars

</span>



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3 years ago
Kenny and Nour each bought new sneakers for $60. Kenny sold his sneakers to the used sneaker store for 25% less than the origina
rosijanka [135]
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Free_Kalibri [48]

Answer:

Step-by-step explanation:

The relation is not a function!

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