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3 years ago

Emily can arrange 20 vases of flowers in 6 hours. Find Emily's rate per hour for arranging

Mathematics

1 answer:

Sergio [31]3 years ago

6 0

Answer:

$3 \frac{1}{3}$ vases per hour

Step-by-step explanation:

To find the unit rate, solve the total amount of vases that Emily arranged divided by the amount of time that Emily took to arrange the vases.

Or, in other words, solve 20 ÷ 6, since Emily arranged 20 vases and it took her 6 hours to complete it.

You can do this by hand or you can do it on a calculator.

After you solved it, you should get $3 \frac{1}{3}$ , or 3.33333...

So, Emily's rate is $3 \frac{1}{3}$ vases per hour.

<h2><u><em>Please mark as Brainliest!!!</em></u></h2>

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Two researchers, Jaime and Mariya, are each constructing confidence intervals for the proportion of a population who is left-

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Answer:

Jaime's. Interval not centered around the point estimate.

Step-by-step explanation:

When constructing a confidence interval based on a point estimate, the obtained point estimate must be the central value of the interval.

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3 years ago

My first ever question on this site. Hope i will get my answer as i have answer others.

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Solve each system of equation using any method.<br> 7 x + y = 5 2x - y = 4

nexus9112 [7]

Answer:

x = 1

y= -2

Step-by-step explanation:

to solve this system of equation , simultaneously using the substitution method

we say let

7 x + y = 5 ............................................. equation 1

2x - y = 4 ................................................... equation 2

from equation 2

2x - y = 4 ................................................... equation 2

2x - 4 = y

y = 2x -4.......................................................... equation 3

put the value of the y = 2x -4 into equation 1

7 x + y = 5 ............................................. equation 1

7x + 2x - 4 = 5

9x-4 = 5

9x = 5 + 4

9x = 9

divide both sides by the coefficient of x which is 9

9x/9 = 9/9

x = 1

substitute the value of x = 1 into equation 3

y = 2x -4.......................................................... equation 3

y = 2(1) -4

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to check if you are correct put the value of x and y into any of the equations and you will see that the left hand side will be equal to the right hand side.

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3 years ago