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Murrr4er [49]
3 years ago
9

A building has two sizes of apartments Smart in regular the ratio of small apartments to regular apartments is 18 to 7 what perc

ent of apartments in the building are small
Mathematics
1 answer:
tino4ka555 [31]3 years ago
3 0

Answer:

72 percent of the total houses are small

Step-by-step explanation:

The first step is to know the total apartments from the ratio: This is got by adding 18 + 7 = 25

The ratio of small apartments to regular ones is 18:7

To get the percentage that is small, we have to express the number of small houses when compared to the total available apartments. (<em>Note: not the regular ones) </em>as a percentage.

This will be (18/25) X 100 = 72%

Therefore, 72 percent of the total houses are small

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URGENT 50 POINTS<br><br> Which equation does the graph below represent?
umka21 [38]

Answer:

It is indeed y = -4x

Step-by-step explanation:

We see that for every increase of 1 in the x direction, y goes down 4.

Pay attention to the scales of the x and y axes.

Slope = rise/run

we rise -4 and run 1.

so the slope is -4/1 = -4

The y-intercept is at (0,0)

So the equation is y = -4x

5 0
2 years ago
The following shows the monthly sales in units of six salespersons before and after a bonus plan was introduced. At 95% confiden
saw5 [17]

Answer:

it is clear that at 95% confidence that the bonus plan has increased the sales significantly, because if we observe you will notice that sales after is greater than sales before in all six cases.

Step-by-step explanation:

A 95% confidence interval as we have above is the range of values that we can say with utmost certainty and confidence that 95% chance it contains the true mean of the population. in other words we can say that a  95% confidence interval defines a range of values that you can be 95% certain contains the population mean.

4 0
2 years ago
Describe and correct the error in determining wheather (8,11) is a solution of y-x=3
Burka [1]

(8, 11) is the correct solution. x = 8, y = 11

Plug it in:

11-8=3

That's correct.

7 0
2 years ago
Read 2 more answers
Kate borrowed $400 from her friend. She will repay this amount plus 3 percent simple interest after one year. What is the total
bagirrra123 [75]
$412 i am pretty sure that is right if not i'm sorry but good luck :) 
7 0
3 years ago
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St. Augustine grass can grow at the rate of 4 over 7 centimeter per week.
kotegsom [21]

Given, the rate of growth of St. Augustine grass is \frac{4}{7} cm per week.

We have to find the number of weeks that the grass grow to \frac{12}{7} cm.

Let's take the number of weeks be x.

In 1 week the grass grow = \frac{4}{7} cm

So in x weeks the grass grow = (\frac{4}{7}) (x) =\frac{4x}{7} cm

So we can write,

\frac{4x}{7} =\frac{12}{7}

To solve it for x, first we will move 7 to the right side by multiplying it to both sides. We will get,

(\frac{4x}{7}) (7) =(\frac{12}{7})(7)

4x =(\frac{12}{7})(7)

4x = 12

Now to get we will move 4 to the right side by dividing it to both sides. We will get,

\frac{4x}{4} =\frac{12}{4}

x = 3

So we have got the required answer.

After 3 weeks the grass grow \frac{12}{7} cm.

3 0
3 years ago
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