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solve each system of equations by using elimination.

a store placed two orders with a supplier. the first order was for 12 digital cameras and 8 camcorders for a total of $7640. the second order was for 9 digital cameras and 11 camcorders for a total of $8330. find a price of a digital camera and a camcorder.

Respuesta :

Answer:

camcorders= 290

digital cameras=520

Step-by-step explanation:

so firstly you will need to make two equations

12x+8y=7640

9x+11y=8330

Then eliminate the one you choose,

(11) 12x+8y=7640

(-8) 9x+11y=8330

132x+ 88y=84040

-72x-88y=-66640

now eliminate your Ys and add your Xs

60x=17400

x=290 which would be your camcorders

then plug in your x to the equation and solve for y

12(290)+8y=7640

3480+8y=7640

8y=4160

Y= 520 which is your digital camera

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