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2 years ago

13

Sweaters already on sale for 30% off the regular price cost $28 when purchased with a promotional coupon that allows an addition

al 20% discount. Find the original price.

1 answer:

maksim [4K]2 years ago

3 0

56.32 because i said so

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Jeanine baker makes floral arrangements. She has 12 different cut flowers and plans to use 5 of them. How many different selecti

Alona [7]

Assuming that the order of selection is not important, this is a question of number of ways. In other words, the combination should be computed. That is,

Number of ways of selection 5 flowers = 12C5 = 12!/{5!*(12-5)!} = 12!/{5!*7!} = 792

Therefore, there are 792 ways in which 5 flowers can be selected from the available 12 flowers.

4 0

2 years ago

tyler has a rectangular garden measuring 12m by 20 m that he wants to split diagonally from corner to corner using a fence. how

adelina 88 [10]

Answer:

23.3

(or $4\sqrt{34}$ (let me know if you wanted this one and is you want it explained) lol)

Step-by-step explanation:

To find the length of the fence, use the Pythagorean theorem because, if you cut a rectangle diagonally, you will create two right triangles, and this formula only works with right triangles:

$a^{2} +b^{2} =c^{2}$

Insert values:

$12^{2} +20^{2} =c^{2}$

Solve for c:

Evaluate exponents

$144+400=c^2$

Simplify addition

$544=c^2$

Find the square root of both

$\sqrt{544} =\sqrt{c^2}\\\\\sqrt{544} =c\\\\23.324=c\\\\c=23.3$

The fence needs to be approximately 23.3 m.

5 0

2 years ago

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Factorise 2a – 4a3 + 6abc

Viefleur [7K]

The answer for this will be

2a(1-2a ²+3bc)

7 0

2 years ago

A class has 36 students in it and 25% of the students wore hats to school. What fraction of the students wore hats?

Setler79 [48]

Hi,

25/100 * 36 = 9

So it represents 9/36 = 1/4 of students

8 0

2 years ago

32 = 4(n – 5) and -s + 11 = 17 please solved Both of the following

valina [46]

Answer:

n=13 s=-6

Step-by-step explanation:

Hope this helps :)

4 0

2 years ago

Read 2 more answers