Holly works as a cashier for $8 per hour . She also works as a math tutor $10 per hour . Her parents only allow her to work 20 hours per week .Holly wants to make at least $170 this week . Which system of inequalities models correctly the hours that holly can work as a cashier , c , and a tutor , t, for the week

A. Ct<20
8c + 10t > 170

B. C + t < 20
8c + 10t > 170

C. C — t <20
8c + 10t > 170

D. C + t < 20
8c – 10t > 170

C

Step-by-step explanation:

It is B.

Step-by-step explanation:

The total hours she works as a cashier and tutor must be less than 20 because that's how much she is allowed to work, so the first equation is C+t<20. She earns 8 dollars per hour as a cashier so the first term is 8c. She earns 10 dollars an hour as a tutor so the second term is 10t. The total of those two jobs must be more than 170 because that's how much she hopes to at least earn, so the second expression is 8c+10t>170.

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