Please help me

2 answers:

7 0

<span>The answer is 15x + 10y ≤ 250 and x + y ≥ 20.. x - the number of long-sleeved shirts. y - the number of short-sleeved shirts. Long-sleeved shirts cost $15 each: 15x. Short-sleeved shirts cost $10 each: 10y. Jacob can spend at most $250: 15x + 10y ≤ 250. He wants to order at least 20 shirts: x + y ≥ 20. Therefore, we have two inequalities: 15x + 10y ≤ 250 and x + y ≥ 20.</span>

UNO [17]3 years ago

5 0

Answer: The answer is 15x + 10y ≤ 250 and x + y ≥ 20

I took the quiz and got 100%! Good luck!

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A widget inspector inspects 12 widgets and finds that exactly 3 are defective.Unfortunately, the widgets then get all mixed up a

WITCHER [35]

Answer:

0.7455

Step-by-step explanation:

First, we note that there are C $C_{12|3}$ = 220 ways of selecting the defective items.

The probability that the inspector will have to test at least 9 widgets would be 1 minus the probability that the inspector will have to test 8 or less widgets.

This is 1 - P(8 or less widgets have to be checked)

1 - $\frac{C_{8|3} }{C_{12|3} }$