All categories

3 years ago

Erin's jewelry box is in the shape of a rectangular prism. what is the surface area of Erin's jewelry box?

Mathematics

1 answer:

viktelen [127]3 years ago

8 0

ANSWER

190 square inches

EXPLANATION

The surface area of a rectangular prism is calculated using the formula.

$S.A = 2(l \times w + l \times h + w \times h)$

The jewelry box has dimensions

l=10, w=5 and h=3.

We substitute the values into the formula to obtain,

$S.A = 2(10\times 5+ 10 \times 3 + 5\times 3)$

This will give us,

$S.A = 2(50+ 30 + 15)$

$S.A = 2(95) = 190 {in}^{2}$

You might be interested in

Solve:<br> 3/4 (5 f - 3) = 3/8<br> F=?

VMariaS [17]

Answer:

f= 0.7

Step-by-step explanation:

Multiply by reciprocal on both sides: 4/3 * 3/4(5f-3) = 3/8 * 4/3 f

Then, you are left with: 5f-3 = 1/2

Then you subtract by three on both sides to get: 5f=3.5

Finally, divide by 5 on both sides to get: f=.07

3 0

3 years ago

The dashed-line triangle is a dilation image of the solid-lined triangle.

Gre4nikov [31]

Refer to the edited figure.

Triangles ABC and A'B'C' are similar because of AAA.
Also,
$\frac{AB}{A'B'}= \frac{15}{5}=3 \\\\ \frac{AC}{A'C'}= \frac{12}{4}=3$

Therefore
ΔA'B'C' is 1/3 the size of ΔABC.
This means that the scale factor from ΔABC to ΔA'B'C' is a 3-factor reduction.

Answer: reduction; one-third.
The dilation is a reduction.
The scale factor of the dilation is one-third.

8 0

3 years ago

Please help (Geometry)<br> (click to see the whole thing)

omeli [17]

Answer:

Step-by-step explanation:

If we know that D is the midpoint, then 2x + 7 = 4(x-3). Doing the algebra on that gives us

2x + 7 = 4x - 12 and

19 = 2x so

x = 9.5

8 0

2 years ago

the table shows cara's scores for 5 rounds of golf. If cara wants an average score of 73, what should her scores be on 6th round

dlinn [17]

Answer:

Step-by-step explanation:

80+69+78+73+75+63= 438

438/6 = 73

Hope this helps you! :)

4 0

3 years ago

Jackson wants to purchase a home theater system that sells for $2500. Either he can pay the total amount at the time of purchase

N76 [4]

Answer:

$90

Step-by-step explanation:

To find out how much money he can save by paying the total amount at the time of purchase, first you have to determine the total amount that Jackson would pay if he can agree to pay $250 down and $130 a month for 18 months:

$250+(130*18)=$2590

Then, you need to find the difference:

$2590-$2500=$90

According to this, the answer is that you will save $90 by paying the total amount at the time of purchase.

6 0

3 years ago

Erin's jewelry box is in the shape of a rectangular prism. what is the surface area of Erin's jewelry box?​

Erin's jewelry box is in the shape of a rectangular prism. what is the surface area of Erin's jewelry box?