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alexandr1967 [171]
3 years ago
11

Ryan $65 for n books. Write an expression that can be used to find the cost of one book.

Mathematics
1 answer:
eimsori [14]3 years ago
5 0

Answer:

x=65/n where x is 1 book and n the number of books

Step-by-step explanation:

If n is the number of books, lets say 1 book is "x", then

nx=65

x=65/n

for example

n=1    then x=65

n=2 then x=65/2

n=3 then x=65/3

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Marco is building a dog house. He pays $65 for a dog house kit and $12 for each can of paint, p, he uses to paint the dog house.
mars1129 [50]
I believe the correct answer from the choices listed above is the last option. The function that represents the total cost to build the dog house would be <span>c(p)=12p+65. Hope this answers the question. Have a nice day.</span>
6 0
3 years ago
Read 2 more answers
The second of the three numbers is 4 times the first the third is 2 more than the second. If the second number is decreased by t
Sergeu [11.5K]

Answer:

the three numbers = -8, -32, -30

Step-by-step explanation:

let the first number = a

let the second number = b

let the third number = c

From the first statement:  b = 4a

From the second statement: c = b + 2

From the third statement: b - 2c = 28

From the above equations, we can solve (1) and (2) together.

c = b + 2

b = c - 2

Also, b - 2c = 28

(c - 2) - 2c = 28

c - 2 - 2c = 28

-c = 30

c = -30

b = -30 - 2

  = -32

b = 4a

a = b/4

a = -32/4

a = -8

Therefore, the three numbers = -8, -32, -30

7 0
3 years ago
Craig grades 9 test every 22 minutes if craig has 63 test to grade how long will it take him
PSYCHO15rus [73]
The answer would be 156 min or 2h and 32 min, the way you would find it is by dividing 63 by 9 and that would get you 7, then you multiply 7 by 22 resulting in 156, then you would simplify it down to 2hours and 32 minutes.


8 0
4 years ago
Read 2 more answers
What is the measure of DE? <br> A) 51<br> B) 68<br> C) 85<br> D) 56
GarryVolchara [31]

Answer:

Option (B) is correct

Step-by-step explanation:

4 0
3 years ago
The measure of one angle of a right triangle is 44º more than the measure of the smallest angle. Find the measures of all
nadezda [96]

Answer:

  • The sum of all angles of a triangle is equal to 180 degree.
  • Now since it is a right angle triangle one angle is 90 degree.
  • And the other one given is 44 degree.
  • So the 3rd angle is 180 minus 90 plus 44 so it is equal to 46 degree .

5 0
3 years ago
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