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andreev551 [17]
3 years ago
7

Borox is loading a freight elevator with 12 boxes: 4 small, 5 medium, and 3 large. A small box and medium box together weigh 20

pounds; a medium box and a large box together weigh 28 pounds; and a small box with a large box together weigh 24 pounds. What is the total weight of the 12 boxes?
Mathematics
1 answer:
Leni [432]3 years ago
7 0

Answer:

30

Step-by-step explanation:

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There are three motors available to repair Ralph’s vacuum cleaner. Motor #1 has a 65% chance of breaking by the end of the week.
Orlov [11]

Answer:

0.619

Step-by-step explanation:

from the question we have the following data:

probability of motor 1 breaking = 65% = 0.65

probability of motor 2 breaking = 35% = 0.35

probability of motor 3 breaking = 5% = 0.05

since we have 3 motors the probability of any of them breaking down is  = \frac{1}{3}

but what the question requires from us is the conditional probability of the first one being installed

we have to solve this questions using bayes theorem

such that:

\frac{0.65*\frac{1}{3} }{0.65*\frac{1}{3}+0.35*\frac{1}{3}+0.05*\frac{1}{3}   }

= \frac{0.2167}{0.2167+0.1167+0.0167}

= \frac{0.2167}{0.3501}

= 0.618966

approximately 0.619

therefore the conditional probability ralph installed the first motor is 0.619

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3 years ago
What is the slope and y intercept of the line 6x + 2y = 12
Dafna11 [192]

Answer:

Slope: -3

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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If f is a one-to-one continuous function defined on an interval, then its inverse f−1 is also one-to-one and continuous.

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