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4 years ago

Mrs. Jackson is covering her bulletin board with new paper. What formula should she use to figure out how much paper to buy?

Mathematics

2 answers:

nignag [31]4 years ago

8 0

Answer:

Step-by-step explanation:

Something of this size could be measured in either ft² or in².

Area of a rectangle is determined by multiplying the width by the height. In this case the bulletin board will be installed vertically, so let's say that

Area of board = (width)(height)

If, for example, the width were 6 feet and the height 3.5 feet, the area of this board would be (6 ft)(3.5 ft) = 21 ft²

Since 1 ft = 12 in, this 6 foot by 3.5 foot board would be 72 inches by 42 inches.

Aliun [14]4 years ago

3 0

Answer: A = L x W

Step-by-step explanation:. Mrs. Jackson should use the formula to calculate area in order to figure out how much paper to buy. The formula is Area = Length x Width. This will tell her exactly how much paper she will need to cover the bulletin board.

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D=(107-115)^2+(-49+-69)^2

ladessa [460]

Answer:

d=13988 or d=1.3988 x 10^4

Step-by-step explanation:

d=(-8)^2+(-118)^2

d=64+13924

d=13988

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3 years ago

If the difference between a number and 21 is divided by2, the result is 4 times the number. What is the number

Ostrovityanka [42]

(n-21)/2=4n is the equation

First, divide what is in the parentheses by 2
0.5n-10.5=4n

Then, multiply the whole equation by 2 so we have all whole numbers
n-21=8n

Move N so that it is with 8n
7n=-21

Divide 21 by 7
n=-3

Solution: The number (n) is equal to -3

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3 years ago

A manager at a shipping company will purchase boxes in the shape of right rectangular prisms. He wants the volume of each box to

Archy [21]

Answer:

Step-by-step explanation:

Ok so if u are shipping boxes in a right rectangular prism u will need to either divide or multiply. if he wants to make each box to be exactly 98 cubic feet then he will need to divide so when u do the u will need to find the first part of the answer then u will divide it by 98 cubic feet :> hope u get what i meant

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3 years ago

Help will mark as brainliest

inysia [295]

I think it’s -1 please mark brainly

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3 years ago

A blank CD can hold 70 minutes of music. So far you have burned 25 minutes of music onto the CD. You estimate that each song las

zaharov [31]

Answer:

The possible numbers of songs that you can burn onto the CD is 11.

Step-by-step explanation:

The total storage capacity of CD = 70 minutes

Storage already used = 25 minutes

Hence, The available storage = Total available storage - Used Storage

= 70 minutes - 25 minutes = 45 minutes

Hence, the CD has 45 minutes storage left.

Now, each song takes up 4 minutes of storage.

⇒ $\textrm{Total number of songs possible} = \frac{\textrm{Total storage left}}{\textrm{Time taken by each song}}$

= $\frac{45 minutes}{4minutes } = 11.25$

⇒The number of songs possible = 11.25 ≈ 11

Hence, the possible numbers of songs that you can burn onto the CD is 11.

4 0

3 years ago