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3 years ago

14

A contractor charges 1,200 for 100 square feet of roofing installed at this rate how much does it cost to have 1,100 square feet

installed

1 answer:

Pavel [41]3 years ago

3 0

Answer:

13200

Step-by-step explanation:

1100/100= 11

1200×11= 13200

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How do I solve −6 + 9(8 − 2b) using distributive property or combining like terms.

Levart [38]

Answer:

66-18b

Step-by-step explanation:

-6+72-18b

66-18b

solving for b

b=3.66 or 3 and 2/3

7 0

3 years ago

Tristan records the number of customers who visit the store each hour on a Saturday. His data representing the first seven hours

Alona [7]

Answer:

Option C is correct.

Step-by-step explanation:

We have been given total 8 data

Data is : 12,15,18,20,23,23,28

Here, n=7

Median is $\frac{n+1}{2}=\frac{7+1}{2}=4th term$

Median is 20.

When one data is added n=8

The median of even number of data is

$median=\frac{\frac{n}{2}\text{th and}\frac{n}{2}+1\text{th}}{2}$

Median is $\frac{8}{2}\text{th and}\frac{8}{2}+1th$

Median is $4\text{th and}5th$

4th terms is 20

5th terms is 23

Since, median should not be change hence,

Median will be 20.

Therefore, option C is correct.

6 0

3 years ago

Read 2 more answers

Find the length of the missing side of the triangle below. Give both exact and approximate answer. Round answer to nearest tenth

Drupady [299]

Answer:

c = √85

c = 9.2

Step-by-step explanation:

a² + b² = c²

7² + 6² = c²

49 + 36 = c²

85 = c²

c = √85

c = 9.2

4 0

3 years ago

Apr 17, 1:42:09 AM

SVEN [57.7K]

Answer:

(-1, 5)

Step-by-step explanation:

3 [x + y = 4]

3x + 3y = 12

- 3x + 7y = 32

-4y = -20

y = 5

x + 5 = 4

x = -1

3 0

2 years ago

6.1.3 quiz pythagorean theorem question 9

Olegator [25]

Answer: 14.73

Step-by-step explanation:

The given triangle is a right angle triangle.

EF^2 + DF^2 = ED^2

The hypotenuse is |ED| while the two shorter legs are |EF| and |DF|.

We can then apply the Pythagoras Theorem to find the length of EF.

(EF)^2 + (DF)^2 = (ED)^2

(EF)^2 + (12)^2 = (19)^2

(EF)^2 + 144 = 361

(EF)^2 = 361 - 144

(EF)^2 = 217

EF = 14.73

6 0

3 years ago