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oksano4ka [1.4K]
1 year ago
7

Sabah has $450 to pay for college textbooks. She expects to pay about $75 per book. Her friend told her that 4 of them can be ch

ecked out of the library for free. Complete the equation below to find the total number of books that Sabah can get for her classes. Use to represent the total books.
Mathematics
1 answer:
stiks02 [169]1 year ago
6 0

Answer: There are 10 books in all.

Step-by-step explanation:

Let x be the total number of books.

Since we have given that

Amount he paid for college textbooks = $450

Price of each book = $75

Number of books checked out for free = 4

So, Number of books which are not free would be

\dfrac{450}{75}=6

So, the total number of books would be

x = Number of books which are not free + Number of books which are free

x=6+4=10

Hence, there are 10 books in all.

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A room has an area of 121 ft2 but carpeting is only sold in m2. How much carpeting is needed to carpet the room?
kykrilka [37]
The correct answer for the question that is being presented above is this one: "D.)11.24 m2."
First, we need to know the conversion between feet to meters.
1 meter = 3.28 feet
1 meter^2 = 10.7584 ft^2

Given the value of 121 ft^2,
= 121 ft^2 * (1 m^2 / 10.7584 ft^2)
= 11.2470 m^2


7 0
2 years ago
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Jim is building a rectangular deck and wants the length to be 1 ft greater than the width. what will be the dimensions of the de
Travka [436]
Let x = width
x+1 is then the length

2x+2(x+1)=66
2x+2x+2=66
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deck will be 16x17, nice for a BBQ. :)
3 0
2 years ago
Helena needs 3.5 cups of flour per loaf of bread and 2.5 cups of flour per batch of muffins. She also needs 0.75 cup of sugar pe
Arlecino [84]
From the given data, we can generate two equations with two unknowns. 

We let x = number of loaves of bread
            y = number of batches of muffins

For the equation of the flour requirement:
17 = 3.5x + 2.5y

<span>For the equation of the sugar requirement:
</span>4.5 = 0.75x + 0.75y

We evaluate the solutions by manipulating one of the equations into terms of the other. We use the first equation.We write x in terms of y.

x = (4.5/0.75) - y

Substitute the third equation to the second equation.

17 = (3.5((4.5/0.75)-y)) + 2.5y

Evaluating y and x, we have,

y = 4 and x = 2

Thus, from the amounts she has in hand, she can make 4 loaves of bread and 2 batches of muffins.
4 0
2 years ago
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The Sydney Morning Herald - February 8, 2004 reported that in 1961, the average number of children born to Australian women (3.5
Alborosie

Answer:

<h2>A. Agree, 4 children is the most typical number of children.</h2>

Step-by-step explanation:

By analysis the problem, we can make our  decision by first determining the percent of 3.55 of 4

therefore the percentage can be computed as

=(3.55/4)*100

=0.8875*100

=88.75%

The analysis above it shows that 88.75 percent of the women who give birth to children give birth to 4 children.

This number is very close to a hundred percent hence the statistical claim is  "Agree, 4 children is the most typical number of children."

3 0
2 years ago
Ava wants to figure out the average speed she is driving. She starts checking her car’s clock at mile marker 0. It takes her 4 m
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Answer:

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Step-by-step explanation:

Find the unit rate (i. e., the speed):

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--------- * ------------- = (3/4)(60) mph = 45 mph

8 min       1 hr

6 0
2 years ago
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