[SOLVED] 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?

[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

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?

Accepted Answer

Suggested Answer

Related Question in Mathematics

Factor [tex]x^{2} =7x[/tex]

Which of these is not a requirement to be a US Senator? 1. must be a natural born US citizen 2. must be a resident of the state when elected 3. must be 30 years old 4.all answers are correct

Question Is this statement true or false? The Chinese knew how to produce silk by about 2700 B.C. Responses true false

It takes Akira 10 minutes to make a black and white drawing and 25 minutes for a color drawing. On Saturday he made a total of 9 drawings in 2 hours. Write and solve a system of equations to determine how many drawings of each type Akira made.

which types of teams most are appropriate when the primary goal is innovation and the organization needs flexibility to cope with an uncertain environment? a. tight b. functional c. horizontal d. vertical e. mechanistic

WILL GIVE BRAINLIEST When a teacher is moving forward at a speed of 2m/s and drops a ball , how the ball moves relative to the teacher ? A) straight downward B) forward and downward