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Gnoma [55]
3 years ago
12

I really need help, I’m having a quiz tomorrow yet I struggle to understand the concept of this stuff...

Mathematics
1 answer:
uranmaximum [27]3 years ago
3 0

Here it goes:

a. Because you have four blue marbles out of the 12 total marbles, the probability is 4/12. YOU MUST SIMPLIFY down to 1/3.

b. There are 12 marbles in the bag right now, and the probability is 4/12, you must add some marbles. 1/10 multiplied by 4 is 4/40. There are 4 blue marbles right now, and 40 minus the 12 there are right now is 38, so you would need to add 38 non-blue marbles.

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8 0
4 years ago
A firm buys 12 file cabinets at $140 each, with payment in full due in 90 days. How much must the firm deposit now to have enoug
anyanavicka [17]

Answer:

firm deposit  is $1667.50

Step-by-step explanation:

given data

buys 12 file = $140

time = 90 days

interest = 3%

solution

we get here return on money over 90 day period  is  

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we consider here required amount = x

so

$140 × 12 = x (1+0.0075)

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3 years ago
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nlexa [21]

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8 0
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Answer:

2

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