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2 years ago

He completed 2 and 4/5 rows of grapes each hour he worked after completing 140 rows of grapes how many hours had he worked?

Mathematics

1 answer:

algol [13]2 years ago

4 0

Step-by-step explanation:

Divide 140 by $2\frac{4}{5}$ to represent the amount of hours he worked.

To make dividing easier, $2\frac{4}{5}$ can also represent 2.8 as a decimal.

$\frac{140}{2.8} =50$

He has worked 50 hours after completing 140 rows of grapes.

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Suppose that the ages of members in a large billiards league have a known standard deviation of σ = 12 σ=12sigma, equals, 12 yea

asambeis [7]

Answer:

$n\geq 23$

Step-by-step explanation:

-For a known standard deviation, the sample size for a desired margin of error is calculated using the formula:

$n\geq (\frac{z\sigma}{ME})^2$

Where:

$\sigma$ is the standard deviation
$ME$ is the desired margin of error.

We substitute our given values to calculate the sample size:

$n\geq (\frac{z\sigma}{ME})^2\\\\\geq (\frac{1.96\times 12}{5})^2\\\\\geq 22.13\approx23$

Hence, the smallest desired sample size is 23

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3 years ago

State the order and type of each transformation of the graph of the function

algol [13]

Using translation concepts, compared to the graph of the base function g(x) = x², the function f(x) was:

Vertically stretched by a factor of 4.

Shifted left by 9 units.

<h3>What is a translation?</h3>

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

In this problem, the base function g(x) = x² was:

Multiplied by 4, that is, vertically stretched by a factor of 4.

Shifted left 9 units, as x -> x + 9.

More can be learned about translation concepts at brainly.com/question/4521517

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2 years ago

Compare your estimate to the exact quotient. Does your quotient seem reasonable? Explain your answer. 9 1/3 ÷ 2 3/4

dezoksy [38]

Answer:

(9(3)+1)/3÷(2(4)+3)/4

28/3÷11/4

28/3×4/11

112/33

3.393

3 0

2 years ago

If (1/4) of (4/3) is subtracted from 2, what is the resulting value?

Bad White [126]

$2-\dfrac{1}{4}\cdot\dfrac{4}{3}=\\
2-\dfrac{1}{3}=\\
\dfrac{6}{3}-\dfrac{1}{3}=\\
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3 years ago

What is the volume, in cubic meters, if the prism below?

Fiesta28 [93]

<h3>Answer: 1848 cubic meters</h3>

=================================================================

Explanation:

Imagine rotating the figure so that the triangular face is flat on the ground. This makes the triangular faces to be the floor and ceiling of this room.

The floor is a triangle with base 24 meters and height 7 meters. The floor area is base*height/2 = 24*7/2 = 84 square meters.

Multiply this floor area with the height of the room (22 m) to get the volume of the room.

volume = (floor area)*(height) = 84*22 = 1848 cubic meters

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1 year ago