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Brrunno [24]
3 years ago
7

How do you get the answer for 820 decreased by 25%

Mathematics
1 answer:
pentagon [3]3 years ago
7 0
So in this one, we are DECREASING by 25%, so we say 25% of 820...

25% × 820 =
.25 × 820 = 205

Now since we are decreasing by 25%, we take our answer and subtract it from the original amount, 820.

820 - 205 = 615

820 decreased by 25% is
615.
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6(3c - 5d + 6) =6(3c−5d+6)=6, left parenthesis, 3, c, minus, 5, d, plus, 6, right parenthesis, equals
Lunna [17]

Answer:

18c - 30d + 36

Step-by-step explanation:

Given

6(3c - 5d + 6)

Required

Expand

6(3c - 5d + 6)

Open bracket

6(3c - 5d + 6) = 6*3c - 6*5d + 6*6

6(3c - 5d + 6) = 18c - 30d + 36

So, the result of the expression is:

18c - 30d + 36

8 0
2 years ago
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Step-by-step explanation:

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2 years ago
A simple random sample of 12 iPhone's being sold over the Internet had the
bearhunter [10]

Answer:

The upper bound is 399.5

Step-by-step explanation:

Let's start by calculating the mean value of the distribution as the addition of all values given divided by 12:

Average = 289.75.

If the standard deviation is 56, then the upper bound in 95% the confidence interval for the mean price of the phones is going to be given by the mean value added to 56 times 1.96 (since 95% of the population is withing 1.96 times the standard deviation)

That is: 289.75 + 56 * 1.96 = 399.51

which rounded to one decimal place gives: 399.5

7 0
3 years ago
The difference of two numbers is 7. Their sum is 41. What is the smaller number?
kicyunya [14]
17 is the smaller number.
EXPLANATION:

The numbers are 24 and 17.

Difference of 7? Check.

Sum of 41? Check.

BOOM magic
8 0
3 years ago
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