Samantha is painting the outside of a box that, №12546809, 28.03.2020 11:06

Mathematics

Lei is painting the outside of a jewelry box that is in the shape of a rectangular prism. its length is 18cm, it s width is 6 cm, and its height is 3cm. what is the surface area of the jewelry box in square meters?

Step-by-step answer

P Answered by PhD

2

To solve this problem you must apply the proccedure shown below:

1. You have that threctangular prism has the following dimensions: Its length is 18 cm, its width is 6 cm, and its height is 3 cm.

2. Then, you must apply the formula for calculate the surface area of a rectangular prism, which is:

SA=2(WL+HL+HW)

Where SA is the surface area of the rectangular prism, L is the lenght, W is the width and H is the height.

3. Therefore, when you susbtitute values into the formula shown above, you obtain:

SA=2(WL+HL+HW)

L=18 cm
W=6 cm
H=3 cm

SA=2[(6 cm)(18 cm)+(3 cm)(18 cm)+(3 cm)(6 cm)]
SA=360 cm^2

Mathematics

Lei is painting the outside of a jewelry box that is in the shape of a rectangular prism. its length is 18cm, it s width is 6 cm, and its height is 3cm. what is the surface area of the jewelry box in square meters?

Step-by-step answer

P Answered by PhD

2

To solve this problem you must apply the proccedure shown below:

1. You have that threctangular prism has the following dimensions: Its length is 18 cm, its width is 6 cm, and its height is 3 cm.

2. Then, you must apply the formula for calculate the surface area of a rectangular prism, which is:

SA=2(WL+HL+HW)

Where SA is the surface area of the rectangular prism, L is the lenght, W is the width and H is the height.

3. Therefore, when you susbtitute values into the formula shown above, you obtain:

SA=2(WL+HL+HW)

L=18 cm
W=6 cm
H=3 cm

SA=2[(6 cm)(18 cm)+(3 cm)(18 cm)+(3 cm)(6 cm)]
SA=360 cm^2

Mathematics

Samantha is painting the outside of a box that is in the shape of a rectangular prism. it’s length is 18cm, it’s width is 6 cm, and it’s height is 3cm. what is the surface area of the box in square cm? a. 162 cm squared b. 180 cm squared c. 324 cm squared d. 360 cm squared

Step-by-step answer

P Answered by Master

4

D. 360 cm squared

Explanation:

Multiply each faces edges.

18x7(WxL)

3x6(HxW)

3x18(HxL)

multiply each equations answer by 2, because the opposite face is the same.

108x2=216

18x2=36

54x2=108

add these together to get 360 cm squared.

Mathematics

Samantha is painting the outside of a box that is in the shape of a rectangular prism. it’s length is 18cm, it’s width is 6 cm, and it’s height is 3cm. what is the surface area of the box in square cm? a. 162 cm squared b. 180 cm squared c. 324 cm squared d. 360 cm squared

Step-by-step answer

P Answered by Specialist

4

D. 360 cm squared

Explanation:

Multiply each faces edges.

18x7(WxL)

3x6(HxW)

3x18(HxL)

multiply each equations answer by 2, because the opposite face is the same.

108x2=216

18x2=36

54x2=108

add these together to get 360 cm squared.

Mathematics

Samantha is painting the outside shape of a rectangular prism. it’s length is 18 centimeters, it’s width is 6 centimeters, and its height is 3 centimeters. what is the surface area of the box in square centimeters?

Step-by-step answer

P Answered by Master

6

360 centimeters^2, the formula for SA is A=2(wl+hl+hw) so just input your numbers if you need work for this question.

Mathematics

Samantha is painting the outside shape of a rectangular prism. it’s length is 18 centimeters, it’s width is 6 centimeters, and its height is 3 centimeters. what is the surface area of the box in square centimeters?

Step-by-step answer

P Answered by Master

6

360 centimeters^2, the formula for SA is A=2(wl+hl+hw) so just input your numbers if you need work for this question.

Mathematics

Neil places £2000 in a bank account that pays 1.5% simple interest per year. How much interest will he earn in 6 years?

Step-by-step answer

P Answered by PhD

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

Mathematics

The last time Robert filled up his car with gas, he paid $24.50 for 7 gallons. This time, he needs 15 gallons. If the price is the same, how much will he pay?

Step-by-step answer

P Answered by PhD

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

Mathematics

Anthony received $150 for his birthday this year. This was $10 less than half the amount he received last year. How much money did Anthony receive for his birthday last year?

Step-by-step answer

P Answered by PhD

The answer is in the image

Mathematics

In a parking lot, for every 8 cars there are 7 trucks. What is the ratio of cars to trucks? A)7 : 8 B)8 : 7 C)8 : 15 D)15 : 8

Step-by-step answer

P Answered by PhD

For every 8 cars there are 7 trucks

Therefore,

Cars:Truck=8:7

Answer is B)8:7

Samantha is painting the outside of a box that is in the shape of a rectangular prism. Its length is 18 cm, its width is 6 cm, and its height is 3 cm. What is the surface area of the box in square cm

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