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max2010maxim [7]

3 years ago

13

A contractor has 26 bags of concrete weighing 600 pounds. How much will 12 bags of concrete weigh?

1 answer:

Lelu [443]3 years ago

7 0

12 Bags of concrete will weight about 276.923 pounds. You need to do 600 divided by 26 for an individual bag. Then multiply the answer you get from it by 12 to find out the amount for 12 bags.

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What is $96 spent in 4 hours written as a unit rate in minutes

lara31 [8.8K]

Answer: The unit rate of $96 spent in 4 hours is, $24 per hour.

Step-by-step explanation: To find the unit rate, you will need to write the information as a ratio, $96/4 hours. If you divide 96 by 4 you will get 24. That means this person spends $24 every hour or $24 per hour or $24/1 hour.

3 0

4 years ago

Ms. Nellies has 2 1/2 pints of vinegar for her students to use in a science experiment. Each

adoni [48]

Answer:

incorrect

2 1/2 divided by 3/4

2 1/2 divided by 3/8 = 6 2/3

6

hope that helped i checked it over im positive its correct

5 0

4 years ago

1/4 and 7/8 as an expression

Maslowich

Answer:

1/4: 1s/4

7/8: 7x/s

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Assume women’s heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. a. If one wom

Zarrin [17]

Answer: a) 0.5636 b) 0.7881

Step-by-step explanation:

We assume that women’s heights are normally distributed .

Let x be the random variable that represents the shoe sizes.

Also, The population mean = $\mu=\text{63.6 inches}$ ; Standard deviation: $\sigma=\text{2.5 inches}$

a) Formula for z:-

$z=\dfrac{x-\mu}{\sigma}$

Put x= 64, we get

$z=\dfrac{64-63.6}{2.5}=0.16$

Now, the probability that the male shoe sizes are greater than 8 :-

$P(z$

Hence, the probability that her height is less than 64 inches = 0.5636

b. Sample size : n= 25

Then , the formula for z :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

Put x= 64, we get

$z=\dfrac{64-63.6}{\dfrac{2.5}{\sqrt{25}}}=0.8$

Then, the probability that they have a mean height less than 64 inches.:_

$P(z$

Hence, the probability that they have a mean height less than 64 inches. =0.7881

7 0

3 years ago

Read 2 more answers

Factorize completely <br> 2x^2+4x-6

rodikova [14]

Answer:

Solution given;

2x²+4x-6

2x²+6x-2x-6

2x(x+3)-2(x+3)

(x+3)(2x-2)

is your answer

6 0

3 years ago

Read 2 more answers