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3 years ago

14

Doris paid $316.80 for wallpaper to cover a 24 foot by 12 foot wall. She used all the wallpaper she purchased, with no waste or

overlap.
What was the cost of the wallpaper per square foot?

1 answer:

tatiyna3 years ago

4 0

The answer is $1.10 because if you divide and multiply by the other answers this answer is the only one that makes sense

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HELP URGENT STEP FUNCTIONS!!!!!!! Used books cost $2.25 each. Which expression represents the total number of books that can be

irinina [24]

Answer:

A. $\left \lfloor \frac{10}{2.25} \right \rfloor$

Step-by-step explanation:

We are given,

The cost of one book = $2.25

Since, it takes $2.25 to buy 1 book.

The, for $10, we can get $\frac{1}{2.25}\times 10$ i.e. $\frac{10}{2.25}$ = 4.44

Since, number of books cannot be in decimals.

So, the closest integer to 4.44 is 4.

Hence, we can buy 4 books from $10.

Now, according to the options:

A. $\left \lfloor \frac{10}{2.25} \right \rfloor = \left \lfloor 4.44\right \rfloor = 4$

B. $\left \lceil \frac{10}{2.25} \right \rceil = \left \lceil 4.44 \right \rceil=5$

C. $\frac{10}{\left \lceil 2.25\right \rceil} =\frac{10}{3} =0.33$

D. $\frac{10}{\left \lfloor 2.25\right \rfloor} = \frac{10}{2} = 5$

Hence, we see that from the options, A is correct.

3 0

2 years ago

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Plzzz tell me the answer and working out

postnew [5]

1. we know she needs 3 packs of biscuits
2. Shop A you only need to pay for 2 packs
3. Shop B you only need to pay for 2 packs
4. Shop C you need to pay for all three
5. so we know C is out of the option.
$1.90 \times 2$
so shop A and B will cost the least

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2 years ago

Math question pls help

myrzilka [38]

Answer:

y = x + 3

Step-by-step explanation:

This is because the number is increasing by three each time and if you substituted the variable x with a number the answer is true.

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2 years ago

What is the first step when solving this equation: 2(x-4)+6=3x+19

Delicious77 [7]

Solve the parenthesis

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2 years ago

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Mr. Abernathy purchases a selection of wrenches for his shop. His bill was $78. He buys the same number of $1.50 and $2.50 wrenc

german

If it's a $1 more than what he pays it will be $5

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2 years ago

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