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ozzi
3 years ago
14

A rectangular whiteboard has an area of x^2-12x-45. Which expression could

Mathematics
1 answer:
Firdavs [7]3 years ago
4 0

Answer: I Think it is b

Step-by-step explanation:

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3/12 1/6 and 1/3 same denominator
iogann1982 [59]
Yes because if you turn 6 and three to 12 then you have 2/12 and 4/12!
5 0
4 years ago
Jordan saved 4/5 of the amount he needs to buy a $80 video game. If he earns $7.75 per hour by working at a pizza shop, how many
Aleksandr [31]
Amount of money saved by Jordon for the video game = (4/5) * 80
                                                                                        = 4 * 16 dollars
                                                                                         = 64 dollars
So
The amount of money that
Jordan needs to earn more for buying the video game = (80 - 64) dollars
                                                                                       = 16 dollars
Amount earned by Jordan per hour working at a pizza shop = $7.75
Let us assume the number of hours Jordan needs to work to save the rest of the money for the video game = x
Then
7.75x = 16
x = 16/7.75
   =  2.06 hours
So it can be said that Jordan has to work 3 hours to save the rest of the money for the video game. If Jordan works 2 hours then he will be short of the required amount. If Jordan works for 3 hours he will have some excess amount in his hand after saving for the video game.
7 0
3 years ago
What is the missing step in this proof?
Arada [10]
1. AD/DB=CE/EB

given


2. AD/DB+1=CE/EB+1

Addition Property of Equality


3. AD+DB/DB=CE+EB/EB

using common denominators


4. AB = AD + DB

   CB = CE + EB

segment addition


5. AB/DB=CB/EB

Substitution Property of Equality


6.ABC DBE

Reflexive Property of Congruence


7.  ABC ~  DBE

SAS similarity criterion


<span>8. </span>

Corresponding angles of similar triangles are congruent.


9. DE|| AC

<span>If the corresponding angles formed by </span>
3 0
3 years ago
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Airida [17]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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Ms. Cathy bought a package of pens. Out of every 10 pens, 6 are black. If there are 20 pens in the pack, what fraction of the pe
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Answer:

12/20 or 60%

Step-by-step explanation:

8 0
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