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NikAS [45]
3 years ago
11

Mary had 74 dollars to spend on 7 books after buying them she had 11 dollars how much did each book cost

Mathematics
2 answers:
Blababa [14]3 years ago
8 0

Answer: $9


Step-by-step explanation: 74 - 11 = 63. 63 divided by 7 equals 9. So each book cost $9


Minchanka [31]3 years ago
4 0

Answer: Each book costs $9


Step-by-step explanation:

74-11 = 63

63 divided by 7 = 9

That's the answer

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Apply the distributive property to create an equivalent expression.
rjkz [21]

Answer:

4x-8+4y

Step-by-step explanation:

We are given that an expression

4(x-2+y)

We have to find an equivalent expression using distributive property .

Distributive property:

a\cdot (b+c)=a\cdot b+a\cdot c

Using the property

4(x-2+y)=4(x-2)+4\cdot y

4(x-2+y)=4x+4(-2)+4y

4(x-2+y)=4x-8+4y

Hence, the equivalent expression  of the given expression is given  by

4x-8+4y

6 0
2 years ago
Fill in the blank with the correct response.<br> Twenty-flve percent of 34 Is<br> Plz
Ierofanga [76]

Answer: 8.4

Step-by-step explanation:

You would convert 25 into a decimal 0.25 and then you would multiply it by 34 which would get you 8.4 hope this helped brutherr

5 0
2 years ago
Read 2 more answers
Bobbi can mow the park in 3 hours and Deshaun can do the same job in 7 hours. How long will it take them to mow the park
Bogdan [553]

Answer:

2.1 hours (2 hours and 6 minutes)

Step-by-step explanation:

The rate of work of Bobbi is ⅓ while for Deshaun is 1/7 hence combined rate will be

⅓+1/7=(7+3)/21=10/21

The equivalent hours is the reciprocal of the above hence 1021/10=2.1 hours

0.1 of an hour is equivalent to 0.1*60=6 minutes

Therefore, the efforts combined will take 2.1 hours or 2 hours and 6 minutes

7 0
3 years ago
Solve the system, enter the smallest x coordinate first
uranmaximum [27]

The solutions to the system of equations are given as follows: (1, -3) and (-4,2).

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

The equations are given as follows:

  • (x + 3)² + (y + 2)² = 17.
  • x + y = -2.

From the second equation:

y = -2 - x.

Replacing in the first:

(x + 3)² + (y + 2)² = 17.

(x + 3)² + (-2 - x + 2)² = 17

x² + 6x + 9 + x² = 17

2x² + 6x - 8 = 0

2(x² + 3x - 4) = 0

2(x + 4)(x - 1) = 0.

Then the solutions for x are:

  • x + 4 = 0 -> x = -4.
  • x - 1 = 0 -> x = 1.

The solutions for y are:

  • When x = 1, y = -2 - 1 = -3.
  • When x = -4, y = -2 -(-4) = 2.

Hence the solutions are:

(1, -3) and (-4,2).

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

8 0
2 years ago
Sarah drove 40 miles per hour. In 3 hours, Sarah drove 120 miles. Which is a valid proportion to represent this description?
slava [35]

Answer:

A

Step-by-step explanation:

miles over hours

40 over 1

120 over 3

6 0
3 years ago
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