Jackie is wrapping a birthday present. the gift box is in the shape of a rectangular prism. it has a length of 8 inches, a width of 10 inches, and a height of 3 inches. what is the minimum amount of wrapping paper she will need to completely cover the box?

134 square inches

214 square inches

240 square inches

268 square inches

268 squared inches

Step-by-step explanation:

The minimum amount of wrapping paper to cover the box completely can be calculated by determining the total surface area of the rectangular prism.

For a rectangle, area = length × width

The opposite surfaces are equal in the prism, thus;

Area of first surface = length × width

                                 = 8 × 10

                                 = 80 square inches

Area of the second surface = length × width

                                              =   10 × 3

                                              = 30 square inches

Area of the third surface = length × width

                                         = 8  × 3

                                         = 24 square inches

Total surface area = 2 × Area of first surface + 2 ×Area of the second                surface+ 2  ×  Area of the third surface

                              = 2 ×80 + 2 × 30 + 2 × 24

                             =  160 + 60 + 48

                              =   268

Therefore the minimum amount of wrapping paper required is 268 square inches.

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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inch

step-by-step explanation:

yard and mile are too big.