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3 years ago

What is a unit rate math

Mathematics

1 answer:

Rus_ich [418]3 years ago

7 0

Answer:

A unit rate is the answer which you get when you divide one of the numbers by the other. This is how much one would be. Here is a video:

htt ps: / /ww w.you tu be.co m/ wa tc h?v= Z m0 KaIw -3

Just remove the spaces in between and you should be alright.

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Find the quotient. <br><br> 2x-3/x divided by 7/x^2

BlackZzzverrR [31]

$\dfrac{2x-3}{x}:\dfrac{7}{x^2}=\dfrac{2x-3}{x}\cdot\dfrac{x^2}{7}=\dfrac{2x-3}{1}\cdot\dfrac{x}{7}\\\\=\dfrac{(2x-3)\cdot x}{1\cdot7}=\dfrac{2x^2-3x}{7}$

4 0

3 years ago

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During off hours, cars arrive at a tollbooth on the East-West toll road at an average rate of 0.5 cars per minute. The arrivals

Norma-Jean [14]

Answer:

$P(X=3) = 2.5^3 \frac{e^{-2.5}}{3!}=0.214$

Step-by-step explanation:

Definitions and concepts

The Poisson process is useful when we want to analyze the probability of ocurrence of an event in a time specified. The probability distribution for a random variable X following the Poisson distribution is given by:

$P(X=x) =\lambda^x \frac{e^{-\lambda}}{x!}$

And the parameter $\lambda$ represent the average ocurrence rate per unit of time

For this case we know that $\lambda =0.5 cars/min$

And we want the probability that during the next five minutes, three cars will arrive, so then our rate becomes:

$\lambda = 0.5 \frac{cars}{min}* 5 min = 2.5 cars$

And we want this probability:

$P(X=3)$

And if we use the pmf we got:

$P(X=3) = 2.5^3 \frac{e^{-2.5}}{3!}=0.214$

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4 years ago

Connor went to New York for vacation. He spent 3 nights at a hotel and rented a car for 4 days. Jillian stayed at the same hotel

frez [133]

The answer for the question in problem would be $125 is the price of hotel per night. This is computed by establishing the equations from the given statements, 3x + 4y = 625 and 4x +5y = 875. And by substitution you would get the answer of 125 as the price per night n the hotel and 75 per day for the rental of car.

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3 years ago

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Draw algebra tile models to prove that 4+8x and 4(2x+1) are equivalent

irina [24]

4*(2x+1)=(2x+1)+(2x+1)+(2x+1)+(2x+1)=
2x+2x+2x+2x+1+1+1+1=
=8x+4
I hope this is ok !

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4 years ago

Round 67,436,828,104 to the nearest million

S_A_V [24]

It would be 67,437,000,000 since the eight in 67,436,(8)28,104 rounds the 6 up to a 7.

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3 years ago

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