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baherus [9]
3 years ago
5

Please help AP3X Learning

Mathematics
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

D

Step-by-step explanation:

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7) Rob and Amy are selling cheesecakes for a school fundraiser. Customers can buy New York
Firlakuza [10]

9514 1404 393

Answer:

  • New York style: $14
  • Chocolate Marble: $16

Step-by-step explanation:

We can let n and c represent the costs of the New York style and the chocolate marble cheesecakes, respectively. Then the two sales are ...

  11n +7c = 266 . . . . . . . Rob's sale

  4n +14c = 280 . . . . . . Amy's sale

The ratio of coefficients of c is a "nice" number (2), so we can eliminate the c variable easily to solve this. Dividing the second equation by 2 and subtracting it from the first gives ...

  (11n +7c) -(1/2)(4n +14c) = (266) -(1/2)(280)

  9n = 126 . . . . . . simplify

  n = 14 . . . . . . . . divide by 9

Filling this into the first equation, we have ...

  11(14) +7c = 266

  7c = 112 . . . . . . . . subtract 154

  c = 16 . . . . . . . divide by 7

One New York style cheesecake costs $14; one chocolate marble cheesecake costs $16.

3 0
3 years ago
Answered
Nutka1998 [239]
True


The question is not a problem with this article
8 0
3 years ago
Adult tickets to the fall play cost $8 and student tickets cost $4. The drama class sold 30 more adult tickets than student tick
pashok25 [27]
The drama class sold 100 adult tickets?????

3 0
3 years ago
A car travels 347 meters in 17 seconds a bus travels 414 meters in 23 seconds which vehicle is traveling faster? How much faster
garik1379 [7]

Answer:

Distance traveled in one second by car=374/17=22meters

Step-by-step explanation:

Distance traveled by bus in one second=414.23=18 meters. Car travels faster.It travels 4 meter more in one second than Bus.

6 0
3 years ago
It takes minutes to do 7 math problems how long does it take to do 20 math problems
Marrrta [24]

Answer:

can you please explain that a little more

4 0
3 years ago
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