Joe's bathroom floor is 5 feet wide and 8 feet long. He will cover the floor with 3" square tiles. How many tiles does Joe need?

Answers

Answer 1

Answer:

The solution is, 14 tiles does Joe need.

What is area ?

Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.

here, we have,

given that,

Joe's bathroom floor is 5 feet wide and 8 feet long. He will cover the floor with 3" square tiles.

so first find area

area=legnth times width

5=width

8=legnth

5 times 8=40

so, we have,

area=40

3 area times x number of tiles=40

divide both sides by 3

x=40/3

x=13 and 1/3

since you can't buy 1/3 tiile

round up

x=14

answer is 14 tiles does Joe need.

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Answer 2

Answer: The answer is 120 cuz you multiply 5 times 8 and get 40 the multiply 40 times 3

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Step-by-step explanation:

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KE = 1440 J

How do you find the area of a square? No matter its height (length) or bass (width)? ; (

Answers

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A 25 foot ladder is leaning against a building 11 feet from the top. The base of the ladder is 15 feet from the base of the building. What is the total height, h, of the building?Please format your answer as the following below:

(+ or -) _ _ _ _ . _ _

Answers

Answer:

14.14 ft.

Step-by-step explanation:

The cost, £C, of hiring a lorry to travel n miles is given by C=a+bn
where a and b are constants.
The cost of travelling 100 miles is £82. the cost of travelling 250 miles is £157

a find out the value of a and b
b work out the cost of hiring a lorry to travel 300 miles

Please show working out clearly, ill award a brainliest answer!!!!!

Answers

Answer:

Part a) a = 32 and b = 0.5

Part b) £182 is the cost of hiring.

Step-by-step explanation:

Given expression is C = a + bn

where C is the cost of hiring a lorry, n is the distance covered and a, b are two constants.

Part a).

We have to find the constants a and b.

Now we will find the system of equations to find the value of constants.

The cost of travelling 100 miles is £82.

82 = a + 100b ---------(1)

The cost of travelling 250 miles is £157

157 = a + 250b --------(2)

Now we will subtract equation 2 from 1.

157 - 82 = (a + 250b) - (a + 100b)

75 = 150b

b = $(75)/(150)=0.5$

Now we put the value of b in equation 1

82 = a + 100×(0.5)

82 = a + 50

a = 82 - 50 = 32

a = 32 and b = 0.5

Part b).

We have to find the cost of hiring a lorry to travel 300 miles.

C = a + bn

C = 32 + (0.5)(300)

C = 32 + 150

C = £182

Part A:
C= a + bn

Make the two equations out of the words:
82 = a + b100 * 2.5 = 205 = a + b250
157 = a+ b250

Subtract the two,
205 = a + b250
- ( 157 = a + b250)
48 = a

Find b by substituting in a:
82 = a + b100
82 = 48 + b100
34 = b100
b = 0.34
Answer for part a: a = 48 , b = 0.34

Part B:
C = a +bn <- when n = 300 , put in a and b, then solve
C = 48 + 0.34(300)
C = 48 + 102
C = 150

Cost when hiring a lorry to travel 300 miles is 150 pounds

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