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nata0808 [166]
2 years ago
9

Ms. Bobb needs to order more notebooks. Office Max charges $42 for 12 notebooks. Staples charges $60 for 15 notebooks. Which sto

re has a better deal? Explain.
Mathematics
1 answer:
mash [69]2 years ago
8 0

Answer:

Office Max

Step-by-step explanation:

Office Max charges $3.50 for each notebook. Staples charges $4 for each notebook. You can achieve this answer by dividing cost by the number of notebooks.

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Simplify, using the distributive property and then combining like terms. 2(x+y)+(2x−2y)
Tamiku [17]

Answer:

4x

Step-by-step explanation:

2(x + y) + (2x - 2y) \\  = 2x + 2y + 2x - 2y \\  = 2x + 2x + 2y - 2y \\  = 4x + 0 \\  = 4x

8 0
3 years ago
F(x) = (x + 5)(x + 6)
Alenkasestr [34]

Answer:(-5,0) , (-6,0)

Y= (0,30)

Step-by-step explanation:

5 0
2 years ago
a positive number is 7 times another number if 3 is added to both the numbers then one of the new number becomes 5 by 2 times th
Neko [114]

Answer:

7 and 1

Step-by-step explanation:

Let the numbers be a and b.

<u>A positive number is 7 times another number:</u>

  • a = 7b

<u>If 3 is added to both the numbers then one of the new number becomes 5 by 2 times the other new number:</u>

  • a+3 = 5/2 × (b +3)

<u>To solve this we substitute </u><u>a</u><u> with </u><u>7b</u><u> in the second equation:</u>

  • 7b + 3 = 5/2 × (b +3)               ⇒ multiplying both sides by 2
  • 14b + 6 = 5b + 15                    ⇒ collecting like terms
  • 14b - 5b = 15 - 6
  • 9b = 9
  • b = 1                                        ⇒ solved for b

<u>Then, finding a:</u>

  • a= 7b
  • a=7*1
  • a= 7                                        ⇒ solved for a

<u>So the numbers are</u> 7 and 1

3 0
3 years ago
The altitude of a helicopter increases 1000 feet every 4 minutes.
tatiyna

Answer:

1/250

Step-by-step explanation:

1000/4 simplifies to 1/250

All you had to do was simplify it

8 0
2 years ago
Read 2 more answers
What is the slope of a line that is perpendicular to the line<br> v= -1/3x - 6
Amiraneli [1.4K]

Answer:

3

Step-by-step explanation:

the slope of a perpendicular line is the negative reciprocal of the original slope

a reciprocal is the inverse of a number, to find the reciprocal, just flip the numerator and denominator

in this cause, the slope is -1/3

the negative of it is 1/3 and the reciprocal is 3

therefore the slope of the perpendicular line is 3

6 0
3 years ago
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