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3 years ago

7

The scale model of a building is 5.4 feet tall. If the original building is 810 meters tall, what was the scale used to make the

model?

1 answer:

posledela3 years ago

7 0

810/ 5.4 = 150. So the scale used was 150

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Robert is using the following data samples to make a claim about the house values in his neighborhood:

luda_lava [24]

Both mean and median are measures of the center of a set of data.
Mean is normally preffered to the median except if there is an outlier that has a tendency to affect the mean.
An outlier is a data point that significantly differs from the other data points in a sample.
In the data set above, there is no outlier that will affect the mean.
Therefore, he should use the mean because there are no outliers that affect the mean.

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3 years ago

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(0.49+0.045)÷5 show steps to solve this

Rzqust [24]

Solve within parenthesis first so .49 +.045 =.535 so then divide by five which is .107

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3 years ago

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Add and Subtract Rational Expressions with a Common Denominator

Sladkaya [172]

Answer:

$\displaystyle \frac{4q^2-q+3}{q^2+6q+5}-\frac{3q^2-q-6}{q^2+6q+5}=\frac{q^2+9}{q^2+6q+5}$

Step-by-step explanation:

<u>Simplifying Rational Expressions</u>

If two or more rational expressions have the same denominator, the add and subtract operations are done only with the numerator. The final denominator will be the common of both.

The expression is:

$\displaystyle \frac{4q^2-q+3}{q^2+6q+5}-\frac{3q^2-q-6}{q^2+6q+5}$

Operating on the numerators:

$\displaystyle \frac{4q^2-q+3}{q^2+6q+5}-\frac{3q^2-q-6}{q^2+6q+5}=\frac{4q^2-q+3-(3q^2-q-6)}{q^2+6q+5}$

Removing parentheses:

$\displaystyle \frac{4q^2-q+3}{q^2+6q+5}-\frac{3q^2-q-6}{q^2+6q+5}=\frac{4q^2-q+3-3q^2+q+6}{q^2+6q+5}$

Simplifying:

$\boxed{\displaystyle \frac{4q^2-q+3}{q^2+6q+5}-\frac{3q^2-q-6}{q^2+6q+5}=\frac{q^2+9}{q^2+6q+5}}$

The expression cannot be further simplified.

7 0

3 years ago

alekssr [168]

Answer: the answer is infinite solutions

Step-by-step explanation:Systems of Equations Level 1:

Question 1

Two linear equations are given below.

Exactly how many solutions does this system of equations have?

Select one:

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3 years ago

you buy popcorn and a soda at the movies. A large popcorn is $7.00 and a drink is $3.50. Tax is 6%. How much will you pay?

Jobisdone [24]

Answer:

$11.13

Step-by-step explanation:

$7.00 + $3.50 = $10.50

6% of $10.50 is $0.63

$10.50 + 0.63 = $11.13

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3 years ago