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Varvara68 [4.7K]

3 years ago

6

Suzanne bought a sweater at the sale price of $25. The original cost of the sweater was $40. What percent represents that discou

rage that Suzanne received buying the sweater?

1 answer:

Blizzard [7]3 years ago

5 0

15/40 x 100 = 37.5
equation for percent decrease is diiference/original x 100.

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David is buying a cheese wheel priced at $650 before tax. The store charges 8% sales tax. what is the total,including tax,david

Troyanec [42]

If the wheel is $650=8% tax, the tax would be $52 we get that by multiplying 650*8% then add 650+52 and we get 702. so together the cheese wheel is $702

3 0

3 years ago

(-w-6)/(w^2+4w-12), how do i write this into simplest form?

PIT_PIT [208]

First factorise the top = -(w+6)
The first factorise the bottom: (w^2 + 4w -12) = (w+6) (w-2)
Therefore the two (w+6) cancels out and you are left with -1 / w-2

7 0

3 years ago

I need help, please, please! Thank You

Evgen [1.6K]

Lol what is the question

3 0

3 years ago

32.4% of 191.2 Round to the nearest thousand

Archy [21]

ANSWER: 61.9488
I think this is the right answer. I hope this helps

5 0

2 years ago

Plz help me with this

Setler79 [48]

Answer: x = 8

(the correct answer was not provided as an option)

<u>Step-by-step explanation:</u>

$log_2(x-6)+log_2(x-4)=log_2(x)\\\\log_2[(x-6)(x-4)]=log_2(x)\\\\(x-6)(x-4)=x\\\\x^2-10x+24=x\\\\x^2-11x+24=0\\\\(x-3)(x-8)=0\\\\x=3\qquad x=8\\\\\\\text{The term after the log symbol (inside the parenthesis) must be greater than 0!}\\\\Check:\\3-6>0\ \text{FALSE --- so 3 is not a valid solution}\\\\8-6>0\ \text{TRUE}\\8-4>0\ \text{TRUE}\\8>0\ \text{TRUE --- 8 is a valid solution because it is true for all}$

8 0

3 years ago