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e-lub [12.9K]
3 years ago
6

Branliest to correct answer explain how to solve it please

Mathematics
1 answer:
Marysya12 [62]3 years ago
6 0

In general, nCr = n! / r! (n-r)!

Here, 7C3 = 7! / 3!(7-3)!

=7 x 6 x 5 x 4 x 3 x 2 x 1 /3 x 2 x 1 ( 4 x 3 x 2 x 1)

=7x6x5x4 / 4x3x2

=7x5x6x4 / 24

=35x24 / 24

=35

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Jean can pack 5 cartons in 15 minutes. Which expression can be used to show the number of cartons Jean can pack in x hours? Grou
nadezda [96]

Answer: 20x

Step-by-step explanation:

First we should note that 60 minutes = 1 hour. Therefore, 15 minutes = 15/60 = 1/4 hour

Since Jean can pack 5 cartons in 1/4 hours, the number of carton that he can pack in one hour will be:

= 5 ÷ 1/4

= 5 × 4

= 20 cartons.

Therefore, to get the number of cartons that Jean can pack in x hours, we will multiply 20 by x. This will be:

= 20 × x

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6 0
2 years ago
Use the digits to investigate addition and subtraction. Digit to make a sum from 0-9 with an answer equal to 98 765
GaryK [48]
Ok ok

90,000+8,000+700+60+5
 ha ha :)
there u go
7 0
3 years ago
What is 72/60 in simplest form
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3 0
3 years ago
Read 2 more answers
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7 0
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