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Greeley [361]
3 years ago
14

Sally buys a coffee table for $300. She refinished it and then sells it for $405. What is the percent increase

Mathematics
2 answers:
dem82 [27]3 years ago
6 0

Answer:

I have no clue but I think you could divide to find that out

andrew-mc [135]3 years ago
5 0

Answer:35%

Step-by-step explanation:

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A battery manufacturer randomly tests 500 batteries and finds that 3 are defective.
ale4655 [162]
To find this answer, we must first find the percentage of batteries that are defective. We can do this by dividing 3 by 500.

3 / 500 = 0.006

So our percentage of defective batteries is 0.6%.

Now, to find out how many defective batteries would be in a batch of 12000, we just need to multiply the constant (percentage of defective batteries) by the amount in the new batch.

12000 * 0.006 = 72

In a shipment of 12,000 batteries, 72 will be defective, so the correct answer choice would be B.
Hope that helped =)
5 0
4 years ago
RATIO HELP PLEASE
9966 [12]
1.\\x-how\ many\ biscuits\ has\ Gemma\\ \\x+4x=20\ \ \ \Leftrightarrow\ \ \ 5x=20\ \ \ \Leftrightarrow\ \ \ x=4\ \ \ \Rightarrow\ \ \ 4x=16\\ \\Ans.\ Gemma\ has\ 4\ biscuits\ and\ Zak\ has\ 16\ biscuits.

2.\\x-how\ many\ marbles\ has\ Asif\\ \\7x+x=80\ \ \ \Leftrightarrow\ \ \ 8x=80\ \ \ \Leftrightarrow\ \ \ x=10\ \ \ \Rightarrow\ \ \ 7x=70\\ \\Ans.\ Asif\ has\ 10\ marbles\ and\ Emily\ has\ 70\ marbles.

3.\\2x-how\ many\ pencils\ has\ Niamh\\ \\2x+3x=10\ \ \ \Leftrightarrow\ \ \ 5x=10\ \ \ \Leftrightarrow\ \ \ x=2\ \ \ \Rightarrow\ \ \ 2x=4\ \ and\ \ 3x=6\\ \\Ans.\ Niamh\ has\ 4\ pencils\ and\ Jack\ has\ 6\ pencils.
5 0
4 years ago
Multiplying 5 and 3 does NOT tell you the total number of flash cards in the 5 piles. Which is the reason why?
erica [24]
5 * 3 does not tell you the total number of flash cards in 5 piles because you don't know how many cards are in each pile.

Mark me Brainliest pls!!!! It will help me rank up!

7 0
4 years ago
Isaac purchased a pair of skates at a 15% off sale.
deff fn [24]
Let 
x-------------> <span>original price of the skates

we know that
15% of x is </span><span>$19.50
so
0.15x=19.50---------> x=19.50/0.15-----------> x=$130

the answer is
the </span>original price of the skates was $130<span>

</span>
8 0
4 years ago
What is the real interest rate if the nominal interest rate is 1 when the rate of inflation is 2
vovikov84 [41]

Answer:

Real interest rate = -1%

Step-by-step explanation:

Real interest rate=Nominal interest rate - inflation rate

From the above,

Nominal interest rate=1%

Inflation rate=2%

Real interest rate=Nominal interest rate - inflation rate

=1% - 2%

= -1%

Real interest rate = -1%

Real interest rate shows you what it really costs borrowers to pay back their loans.

if the real interest rate is greater than zero, the amount you pay back is worth more in real terms than the money you borrowed.

if the real interest rate is below zero as in the above case, the amount you will pay back is less worth in real terms than the money you borrowed.

7 0
4 years ago
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