Petrich is wrapping four presents for his mom, dad, sister, and daughter. The following are the estimate box sizes:

8.5" × 14.5" × 1.5"
9.5" × 14.5" × 2"
11" × 16" × 3"
15.5" × 12"× 4"

A standard roll of wrapping paper is 30" long with nine feet (three yards) of paper. Determine the minimum amount of rolls of wrapping paper that Petrich needs for all four presents.

Minimum 2 rolls will be required.

Step-by-step explanation:

Surface area of all three boxes = Area of the wrapping paper required

Surface area of Box 1 = 2(lb + bh + hl)

                                    = 2(8.5×14.5 + 14.5×1.5 + 8.5×1.5)

                                    = 315.5 square inches

Surface area of box 2 = 2(9.5×14.5 + 14.5×2 + 9.5×2)

                                    = 371.5 square inches

Surface area of box 3 = 2(15.5×12 + 12×4 + 15.5×4)

                                    = 592 square inches

Surface area of box 4 = 2(11×16 + 16×3 + 11×3)

                                    = 514 square inches

Total surface area = 315.5 + 371.5 + 592 + 514

                               = 1793 square inches

Dimensions of the wrapping paper = 30" × 9 feet Or 30" × 108"

Area of the wrapping paper = 3240 square inches

Number of papers required to wrap all four boxes =  

                                                                                    ≈ 2 rolls  

Therefore, minimum 2 rolls will be required to wrap the presents.                          

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

hello, there is a new name in town and that's the human spider!

answer: d.) the total number of protons and neutrons is 15

merry christmas!

~

your friendly neighborhood human spider! .