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slavikrds [6]
2 years ago
10

Josefina works between 10 and 30 hours per week at a pizzeria. She earns $6.50 an hour, but can earn tips when she delivers pizz

a.
a) Write a system of inequalitites to represent the dollars 'd' she could earn for 'h' hours in a week.

b) If Josefina recieved $17.50 in tips and earned a total of $180 for the week, how many hours did she work?
Mathematics
1 answer:
mafiozo [28]2 years ago
7 0


a, 6.50h=d

b. 25 hours

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Answer:

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Step-by-step explanation:

Taking $50 each month causes  - $50 change to bank balance

<u>Repeating same for 7 month:</u>

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The health benefits Tom receives from his employer cover 43% of the total monthly premium of $345.00. How much does Tom have to
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Answer:

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Step-by-step explanation:

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Two processes are used to produce forgings used in an aircraft wing assembly. Of 200 forgings selected from process 1, 10 do not
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Answer:

a.

\bar p_1=0.05\\\bar p_2=0.067

b-Check illustration  below

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For p_2:T2=20,n2=300

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c.(1-\alpha).100\% for the p1-p2 is given as:

(\bar p_1-\bar p_2)\pm Z_0_._5_\alpha \times \sqrt   \frac{ \bar p_1(1-\bar p_1)}{n_1}+\frac{\bar p_2(1-\bar p_2)}{n_2}\\\\=(0.05-0.067)\pm 1.645  \times \sqrt \ \frac{0.05+0.95}{200}+\frac{0.067+0.933}{300}\\

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*CI contains o, which implies that proportions are NOT significantly different.

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