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GuDViN [60]
3 years ago
10

400% of a number is 45. Find the number

Mathematics
2 answers:
Alchen [17]3 years ago
5 0
400% = 400/100

Write an equation; 400% of which number is equal to 45

400/100x = 45
400x = 4500
x = 4500/400
x = 11.25 this is the number

Check (400x11.25) / 100 = 45
horsena [70]3 years ago
3 0
The answer is is 180

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A. 2860

180 x 12 (months in a year) = $2160
$2160+700= $2860
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3 years ago
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a merchant is selling wind chimes from a booth at a flea market. he rents his space for $125 per day. the profit from each wind
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3 years ago
If the sales tax is 7% how much tax will u pay on a cd that costs 15$
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3 years ago
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If x= 8 x 9 x 27 then what is 3 square root of x
forsale [732]

Answer: 132.27

Step-by-step explanation:

Multiply 8 × 9 × 27 to get the value of x

= 1944

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6 0
3 years ago
Days before a presidential​ election, a nationwide random sample of registered voters was taken. Based on this random​ sample, i
erica [24]

Answer:

We are 95% confident that the percentage of registered voters in the nation planning on voting for Robert Smith is between 49% and 55%.

Step-by-step explanation:

Given that :

Margin of Error = ±3%

Sample Proportion = 52%

Confidence level = 95%

The 95% confidence interval is :

Sample proportion ± margin of error

52% ± 3%

Lower boundary = 52% - 3% = 49%

Upper boundary = 52% + 3% = 55%

The interpretation is that at a given confidence level ; the popukation proportion based on the sample proportion and margin of error is in the confidence interval.

7 0
3 years ago
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