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Elena-2011 [213]
3 years ago
9

If 430 pounds of pebbles cover 1500 square feet, how many pounds of pebbles are necessary to cover 75,000 square feet?

Mathematics
1 answer:
drek231 [11]3 years ago
5 0
6500 pounds are necessary to cover 75000 square feet
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Which formula gives the area of a rectangle?
Tpy6a [65]

Answer:

L*W=Area

Step-by-step explanation:

The formula Length x Width = Area is the correct formula for the area of a rectangle. The same formula works for a square!

6 0
3 years ago
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Find the quotient. (6x 2 - x - 40) ÷ (5 + 2x) 8 - 3x 3x + 8 3x - 8
Artyom0805 [142]

Answer:

The quotient is 3x-8

Step-by-step explanation:

(6x^2-x-40)÷ (5 + 2x)

The above equation can be written as

(6x^2-x-40)÷ (2x + 5)

The division is shown in the figure below.

The quotient is 3x-8

4 0
3 years ago
6375/10000 in simplest form
Leto [7]
6375×10*4 to the fourth power
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3 0
3 years ago
Almost all companies utilize some type of year-end performance review for their employees. Human Resource (HR) at a university's
balu736 [363]

Answer:

The Answer is 76.

Step-by-step explanation:

Given the normal distribution " 10% of employees (rated) exemplary, 20% distinguished, 40% competent, 20% marginal, and 10% unacceptable'',  we can see that exemplary employees are top 10% rated employees.

We have the formula for normal distribution:

z=(X-M)÷σ

where z is the <em>minimum z-score </em>for top 10% employee, X is the <em>minimum </em>score for top 10% employee, M is the <em>mean</em> of the score distribution, σ is the <em>standard deviation</em> of the score distribution.

The z-score we are looking for is the value "a" that separates the highest 10% from the lowest 90% i.e. P(z≤a)=0.90

If we look at z-table, corresponding value for a is 1.28155

We can now put the values in the formula:

1.28155=\frac{X-50}{20}

So X=(1.28155×20)+50=75.631

Therefore minimum score for exemplary employee is 76.

3 0
2 years ago
What percent of 642 is 321? and can you please add steps on how you got that answer thanks!
patriot [66]
To determine what percentage of 642 the number 321 is, we can follow the equation below.

(Smaller Number / Bigger Number)*100

We can plug the numbers into the equation to get our answer.

(321/642)*100 = 0.5 *(100) = 50%


So 321 is 50% of 642
7 0
3 years ago
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