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oksian1 [2.3K]
2 years ago
7

A store sells the basic model of a phone for $60 and the upgraded model for $200. It costs the store $10 to buy each basic model

and $50 to buy each upgraded model from the phone company. On Tuesday, the store has $1,800 in sales for these two models, and it paid the phone company $400 to buy these phones. How many upgraded models did the store sell on Tuesday?
Mathematics
1 answer:
ivolga24 [154]2 years ago
5 0

Answer:

6

Step-by-step explanation:

(6*200)+(10*60)=1800

(6*50)+(10*10)=400

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3x(4x+5y)

Step-by-step explanation:

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Step-by-step explanation:

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GarryVolchara [31]

Rewrite the limit as

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7 0
3 years ago
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7 0
3 years ago
Hello, thanks for answering. Your a hero. :)
lyudmila [28]
They added it wrong. They added it like this:

100 + 700 + 800 + 560
When it shouldve been this:

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They just added a place marker in all numbers below 100.
5 0
3 years ago
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