Dana drew a scale drawing of a house and its lot. The scale she used was 5 inches : 2 feet. In the drawing, the deck is 115 inches wide. What is the width of the actual deck?

First convert all the units into inches.

2 feet = 24 inches

Let x be the width of the actual desk

5 : 24 :: 115 : x

Remember this: Product of means is equal to the product of extremes.

5x = 115 × 24

5x = 2760

∴ x = 2760 ÷ 5

x = 552 inches

Then convert 552 inches back to foot.

Final answer = 46 foot

Final answer = 46 foot

Step-by-step explanation:

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

(1,-1) i hope this

step-by-step explanation: