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gregori [183]
3 years ago
12

What is 7C3? Thanks.

Mathematics
2 answers:
Lerok [7]3 years ago
8 0

Answer:

C7,3=7!( 3!)( 7−3)!= 7! I think tell me if I'm wrong?

charle [14.2K]3 years ago
5 0

Answer:

7C3 = 7! / (7 - 3)! 3! = 7 x 6 x 5 x 4! / 4!

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Alex777 [14]

Answer:

1832.45

Step-by-step explanation:

2735 - 33% = 1832.45

8 0
3 years ago
mike makes a commission of 10% on each tv set sold at store. Each tv costs $120. how much money will he make as commission if st
Leni [432]

The answer is he will make $300 commission for 25 TV sets sold.  The first thing you need to do is find out how much commission he makes on each TV. So we take $120 and divide by 10% and that gives us $12.  So $12 is the amount of commission per TV. Then we just need to multiply the $12 by 25 TV sets. That gives us the answer of $300 commission total.

A second way to solve this problem is by taking the $120 and multiplying that by the 25 TV sets.  That gives you $3,000 total for the 25 TV sets.  Then you just divide the 10% commission Mike will make.  That also gives you the answer of $300 commission.

5 0
4 years ago
Read 2 more answers
The length of a picture is 15.75 inches shorter than twice the width. If the perimeter of the picture is 106.5 inches, find its
Vladimir79 [104]

Answer:

Length = 45.37 in

Width = 30.56 in

Step-by-step explanation:

Let the width of the picture be 'w' inches.

Given:

Perimeter of the picture is, P=106.5\ in

Length is 15.75 inches shorter than twice the width. So, length is:

l=2w-15.75

Now, we know that the perimeter of a rectangular shape is given as the sum of all of its side. So, the picture is also of rectangular shape and hence the perimeter is given as:

P=2l+2w

Plug in the values of 'l' and 'P' and solve for 'w'. This gives,

106.5=2w-15.75+2w\\106.5=4w-15.75\\106.5+15.75=4w\\4w=122.25\\w=\frac{122.25}{4}=30.56\ in

Therefore, the width of the rectangular picture is 30.56 inches.

Length of the picture is, l=2(30.56)-15.75=61.12-15.75=45.37\ in

So, length of the picture is 45.37 inches and width is 30.56 inches.

3 0
3 years ago
A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only
lara31 [8.8K]

Answer:

900

Step-by-step explanation:

Margin of error = critical value × standard error

The margin of error is given to be 0.05.

At 99.5% confidence, the critical value is z = 3.

The standard error for a proportion is √(pq/n).  Since p is not given, we will assume p = 0.5.

0.05 = 3 √(0.5 × 0.5 / n)

n = 900

7 0
3 years ago
Is algebra.
Reptile [31]

Answer:

(x+9)(x+10)

Step-by-step explanation:

9*10=90

9+10=19

5 0
3 years ago
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