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Lesechka [4]
2 years ago
9

After doing some work in the house, Bob and Carol want to put a concrete patio on the side of the house to keep people from trac

king mud inside. They decide to hire someone to do the work. The dimensions of the rectangular patio are 23 feet 9 inches by 10 feet 1 inch. The ratio will need to be at least 4 inches deep. Rachel’s Ready-Mix bid on the job based on the information provided. Make sure that you fill in each answer area before checking "How Did I Do?". Calculate the volume of concrete needed, in cubic yards, adding 5% to allow for spillage and an uneven base Round up to the nearest 14 cubic yard.
Mathematics
1 answer:
Irina-Kira [14]2 years ago
4 0

Answer:

Volume= 2.92cubic yard

Step-by-step explanation:

Converting to ft

23ft9inches= 23+(9/12)=23.75ft

10ft 1 in= 10 +(1/12)= 10.083ft

4 inches= (4/12)=0.333ft

Volume= L×W×H

Volume= 23.75 × 10.083×0.33= 79.02ft^3

Converting to cubic yard

1 cubic foot= 0.037 cubic yard

79.02 cubic feet= 0.037× 79.02= 2.92cubic yard

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Suppose that, for every lot of 100 computer chips a company produces, an average of 1.4 are defective. Another company buys many
Allisa [31]

Answer:

0.1665

Step-by-step explanation:

Given that on an average 1.4 are defective per 100 computer chips

If the tested lot contains more than three defects, the buyer will reject all the lots sent in that batch.

Let X be the no of defective items in 100 chips

X is Poisson with mean =1.4

i.e. the probability that the buyer will accept the lots

=P(X\geq 3)\\\\=0.16651

Answer is 0.1665

7 0
2 years ago
Xavier is buying a new pair of snowshoes. They are regularly $85, but they are on sale for $68. What percent is the markdown?
Mandarinka [93]

Answer:

25%

Step-by-step explanation:

4 0
1 year ago
Follow the steps to solve this equation. 3(2x + 6) – 4x = 2(5x – 2) + 6 1. Use the distributive property: 6x + 18 – 4x = 10x – 4
Yuliya22 [10]

Answer:

x=2.

Step-by-step explanation:

We have been given an equation 3(2x+6)-4x=2(5x-2)+6. We are supposed to solve our given equation step by step.

Step 1: Use the distributive property.

3\cdot 2x+3\cdot 6-4x=2\cdot 5x-2\cdot 2+6

6x+18-4x=10x-4+6

Step 2: Combine like terms.

6x-4x+18=10x-4+6

2x+18=10x+2

Step 3: Use subtraction property of equality:

2x-2x+18-2=10x-2x+2-2

16=8x

Step 4: Use the division property of equality:

\frac{16}{8}=\frac{8x}{8}

2=x

Therefore, the solution of our given equation is x=2.

8 0
2 years ago
Read 2 more answers
What values of b satisfy 3(2b + 3)2 = 36?
meriva
What values of b satisfy 3(2b+3)^2 = 36

we have
3(2b+3)^2 = 36
Divide both sides by 3
(2b+3)^2 = 12
take the square root of both sides
( 2b+3)} =(+ /-) \sqrt{12} \\ 2b=(+ /-) \sqrt{12}-3

b1=\frac{\sqrt{12}}{2} -\frac{3}{2}
b1=\sqrt{3} -\frac{3}{2}

b2=\frac{-\sqrt{12}}{2} -\frac{3}{2}
b2=-\sqrt{3} -\frac{3}{2}
therefore

the answer is
the values of b are
b1=\sqrt{3} -\frac{3}{2}
b2=-\sqrt{3} -\frac{3}{2}
9 0
1 year ago
WILL GIVE 5 STARS TO THE PERSON WHO HELPS WITH AN EXPLANATION!!! If the 32 ounce bottle is 20% more than the typical bottle, how
Aleks04 [339]
So if 32 oz is 20% more than the average bottle, you multiply 32 by .20 which gives you 6.4. This means that the 32 oz bottle is 6.4 oz more than the regular bottle. Furthermore, 32 - 6.4 = 25.6 so that's how big the typical bottle is.
3 0
1 year ago
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