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Eddi Din [679]
3 years ago
10

Jennifer has a taco stand.she found that her daily costs can be modeled by C(x)=x^2-40x+610. if she wants to keep her daily cost

at 300 dollars, how many units of tacos does she need to sell
Mathematics
1 answer:
Svetllana [295]3 years ago
8 0
Plug in 300 for C(x), to get:
300=x^{2} -40x=610
Then subtract to get: 0=0= x^{2} -40x+310
Then use the quadratic formula and plug everything in. Use a calculator to simplify.

You'll get two answers: 29.486 and -0.513.
Since you can't sell <em>"negative" </em>tacos, use the positive solution
Around 29-30 tacos.
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