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aliina [53]
3 years ago
5

If the pile contains only 15 quarters but at least 30 of each other kind of coin, how many collections of 30 coins can be chosen

?
Mathematics
1 answer:
klio [65]3 years ago
6 0
<span>My answer to your question would be:  C(33,3)-C(17,3). </span>I hope that this is the answer that you were looking for and it has helped you.
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A rectangle with an area of 4/7 meters squared is dilated by a factor of 7. What is the area of the dilated rectangle?
nikklg [1K]

Answer:

49

Step-by-step explanation:

Every time you multiply both sides of a rectangle by a number x, its area if multiplied by x^{2}.

In our example:

Area of a rectangle = width . length

width = 4

length   = 7

A_{1} = 4 . 7 = 28

When you multiply both sides by 7:

width = 4 . 7 = 28

length = 7 . 7 = 49

A_{2}  = 28 . 49

A_{2}  = 1372

A_{2}  / A_{1} = 1372 / 28 = 49 = (7)^{2}

Both sides multiplied by 7 => Area multiplied by 7^{2}

Got it?

;-)

7 0
3 years ago
Writing a two column proof (edge)
frutty [35]
It is d Ik Bc Ik don’t ask why just know it’s d
8 0
2 years ago
Lilian is packing gifts for the needy. She has 240 toys and 180 books
Virty [35]

Answer:

1. 240+180=420 packages.

2. 420 ÷ 240=2 toys and 1 left over.

3. 420 ÷ 180=2 books and 1 left over.

Step-by-step explanation:

Lilian can either put 1 toy and 1 book in the same package or separate them.

6 0
3 years ago
Read 2 more answers
At a certain college, the ratio of men to women is 6 to 5. If there are 1,500 men, how many women are there?
Fed [463]

Let 6x represent the men

5x represents the women

The ratio of men to women is 6 to 5 or 6/5


6x / 5x = 1500/ W  where W is the number of women

6/5 = 1500/W

W =  1250 women


4 0
3 years ago
Please help me with this homework
algol13
Yes, you got it right
4 0
3 years ago
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