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Alisiya [41]
3 years ago
7

Matthew bought a suitcase marked down from $90 to $81. What is the discount percentage?

Mathematics
1 answer:
Ksivusya [100]3 years ago
7 0

Answer:

10%

Step-by-step explanation:

Percent change= New-Old |Old|× 100% percent change=81-90 |90| × 100= -9 90×100=-10%

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What are three ways to get 256 using exponents
Nastasia [14]

recall from the previous posting, 2⁸ = 256, so that's one way to represent it.

now, another way hmmm


\bf 2^8\implies 2^{2\cdot 4}\implies (2^2)^4\implies (4)^4\implies 4^4
\\\\\\
\stackrel{\textit{yet another way}}{2^8\implies 2^{4\cdot 2}}\implies (2^4)^2\implies (16)^2\implies 16^2

5 0
3 years ago
What is 89.99 divided by 30%
kirill115 [55]

Answer:

if you are dividing 299.96 If you are multiplying 26.99

Step-by-step explanation:

If you are dividing: Factor the numerator and denominator and cancel the common factors.

If you are multiplying: Simplify the expression.

6 0
3 years ago
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What is the square root of -1?
Alchen [17]

Answer: √−1=i.

Step-by-step explanation: When we say that the square root of a negative number "doesn't exist", we mean that there is no real number solution. However, if we consider complex numbers, we then get a solution to √−1=i.

4 0
3 years ago
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John has $6 to buy school supplies. He buys 6 notebooks that are $0.52 each. He spends the remaining money buying erasers that a
Anuta_ua [19.1K]
John bought 18 erasers.



Explanation: He has $6.00

He spends $3.12 on notebooks
Then you do $6.00 - $3.12 and you get $2.88

If it’s ¢16 per eraser and he has no money left over after buying erasers than you would divide $2.88 by $0.16 which turns into 288 divided by 16 which comes out to 18.

Therefor John bought 18 erasers.
5 0
3 years ago
Im confused... what do I do this?? (Just 14 btw) thank youuuuu
user100 [1]

Answer:

1=-1/5 2=11/20 3=149/25

Step-by-step explanation:

I get it you have to put the number into your calculator then turn it into a fraction

hop this helps

-mercury

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3 years ago
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