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algol [13]
3 years ago
11

levi is buying used books.He buys 5hardcover books and 2 paperback books. He spend $28. if the books are all the same price,how

much does each book cost ​
Mathematics
1 answer:
Nataly [62]3 years ago
3 0

Answer:

Each book cost 4 dollars

Step-by-step explanation:

There are 5 hardcover and 2 paperback books

We know that the information doesn't matter as they cost the same singularly

He bought 7 books and his total spent is 28

28 divided by 7 is 4

bringing us the total of 4 dollars per book

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4. Kevin has $24 to buy a gift for his cousin.
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Answer:  Yes, he would have enough money. In total he would spend  $23.10

Step-by-step explanation

Add 5% to the $24

4 0
3 years ago
Which number completes the square? x2 − 20x + _____?
OverLord2011 [107]
100, because, x^2 - 20x + 100 = ( x - 10 )^2;
4 0
3 years ago
What is <br> the equation of the line that passes through the points (-6,6) and (-1,-9)
IgorLugansk [536]

Answer:

The answer to the question provided is y = -3x - 12.

Step-by-step explanation:

❃Incase you forgot what the linear equation formula is ☟

y = mx + b

❃Incase you also forgot, what the slope formula is ☟

m = \frac{y_2 - y_1 }{x_2 - x_1}

➊ First: We are going to be solving for the slope.

m = \frac{  - 9 - 6}{ - 1 - ( - 6)} = \frac{ - 15}{ \: \: \: 5} = - 3

➋Second: We find the y-intercept.

y = mx + b \\ 6 = - 3( - 6) + b \\ 6 = 18 + b \\ \frac{  - 18 =  - 18 \: \: \: \: \:  \:  \:  \:  \:  \:  \:  \: }{ - 12 = b}

➌Third: Plug in.

y =  - 3x - 12

6 0
3 years ago
27 miles per hour. how many miles per minute in decimal form?
maxonik [38]

1 hour = 60 minutes

27/60 = 0.45 miles per minute

7 0
3 years ago
A taxi fare has a fixed charge of $1.75 and an additional charge $0.45 per mile. A fare for m miles is $13.90. Which equation co
Anestetic [448]

Answer:

B) 1.75 + 0.45m = 13.90

Step-by-step explanation:

To calculate the Taxi fare, we need to sum the fixed charge and the additional charge. Fixed charge ever is $1.75. The additional charge changes with the miles traveled (one mile costs $0.45, two miles $0.90, and so on), so we need multiply the charge ($0.45) by the miles m traveled.  

1.75 + 0.45 m

The problem says that the fare was equals to $13.90 so the final equation is

1.75 + 0.45m = 13.90

6 0
3 years ago
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