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The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he pay?

Sagot :

januzo4819864
[tex]x\ -\ cost\ of\ digital\ camera\\y\ -\ cost\ of\ video\ camera\\5x+3y=3213\\y=4x\\5x+3\cdot4x=3213\\17x=3213/:17\\x=189\\y=4\cdot189\\y=756\\\\189+756=945[/tex]
Answer: John pays 945 for a digital camera with a video camera.

I hope I helped :D
marekmichalikexperim

Answer:

945

Step-by-step explanation:

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