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marishachu [46]
4 years ago
14

Can someone help me with this question

Mathematics
2 answers:
NemiM [27]4 years ago
6 0

Answer:

360 inches or 30 feet

Step-by-step explanation:

A scale factor is the value which multiplied by a number scales the number larger or smaller. The blueprint has a wall height of 8 in. Using the scale factor 45, the actual height is 8*45 = 360 inches.

360 inches/ 12 inches  is 30 feet.

trasher [3.6K]4 years ago
5 0

Answer:

30 ft

Step-by-step explanation:

Multiply the scale factor by the wall given.

45 X 8 in = 360 in

Convert inches into feet. (12 inches = 1 foot)

360/12 = 30 feet

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Pls answer this correctly and I will mark it as brainlist
xxMikexx [17]

C=250+4s

Hopefully that helped.

6 0
3 years ago
Read 2 more answers
Solve the system of equations.
Anon25 [30]

Answer:

x = -2y

Step-by-step explanation:

Step 1. x + 2y = 0

Step 2. x + 0 = -2y

Step 3. x = -2y

3 0
3 years ago
The physical plant at the main campus of a large state university receives daily requests to replace fluorescent light bulbs. Th
ankoles [38]

We have been given that the distribution of the number of daily requests is bell-shaped and has a mean of 38 and a standard deviation of 6. We are asked to find the approximate percentage of lightbulb replacement requests numbering between 38 and 56.

First of all, we will find z-score corresponding to 38 and 56.

z=\frac{x-\mu}{\sigma}

z=\frac{38-38}{6}=\frac{0}{6}=0

Now we will find z-score corresponding to 56.

z=\frac{56-38}{6}=\frac{18}{6}=3

We know that according to Empirical rule approximately 68% data lies with-in standard deviation of mean, approximately 95% data lies within 2 standard deviation of mean and approximately 99.7% data lies within 3 standard deviation of mean that is -3\sigma\text{ to }3\sigma.

We can see that data point 38 is at mean as it's z-score is 0 and z-score of 56 is 3. This means that 56 is 3 standard deviation above mean.

We know that mean is at center of normal distribution curve. So to find percentage of data points 3 SD above mean, we will divide 99.7% by 2.

\frac{99.7\%}{2}=49.85\%

Therefore, approximately 49.85\% of lightbulb replacement requests numbering between 38 and 56.

6 0
3 years ago
Four cups of a salad blend containing 40% spinach is mixed with an unknown amount of a salad blend containing 55% spinach. The r
Serjik [45]
8 cups,55%, result 12 cups
4 0
3 years ago
Increase £30 by 2/5?
Sergeu [11.5K]
2/5 of 30 = 12
30 + 12 = 42
£42
6 0
4 years ago
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