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Blizzard [7]
2 years ago
14

A bicycle helmet cost $41.40 in 1983. what will a bicycle helmet cost when the cpi is 186? round to the nearest cent. a. $222.58

b. $144.60 c. $77.00 d. $72.30 please select the best answer from the choices provided a b c d
Mathematics
1 answer:
AleksandrR [38]2 years ago
7 0

Answer:

  c.  $77.00

Step-by-step explanation:

The CPI is 100 times the ratio of prices relative to those in some reference period. Here, we assume the reference year is 1983, so a CPI of 186 means the current prices are 1.86 times those in 1983.

  1.86 × $41.40 = $77.00

The helment price will be $77.00 when the CPI is 186.

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Answer:

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The distance travelled is 10 m

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<h3>Motion</h3>

From the question, we are to determine distance travelled and the velocity gained

From one of the equations of motion for <u>linear motion</u>, we have that

S = ut + 1/2at²

Where S is the distance

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t is the time taken

and a is the acceleration

First, we will calculate the acceleration

Using the formula,

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and a is the acceleration

∴ a = F/m

Where F is the force

and a is the acceleration

From the given information,

F = 50 N

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Putting the parameters into the equation,

a =  50/250

a = 0.2 m/s²

Thus,

From the information,

u = 0 m/s (Since the object was initially at rest)

t = 10 s

S = 0(t) + 1/2(0.2)(10)²

S = 10 m

Hence, the distance travelled is 10 m

For the velocity

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v = u + at

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v = 0 + 0.2×10

v = 2 m/s

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Learn more on Motion here: brainly.com/question/10962624

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Step-by-step explanation:

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