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Helga [31]
3 years ago
14

8 55% of students in a school are boys.

Mathematics
1 answer:
ioda3 years ago
5 0

Answer:

Ratio = 11:9

Boys = 440

Girls = 360

Explanation:

Given that, in a school,

Total number of students = 800

Also,

Percent of boys = 55%

Therefore, number of boys = 55% of 800

No. of boys = 55/100 x 800

No. of boys = 55 x 8 =

No. of boys = 440

Therefore, we will get,

No. of girls = (800-440)

No. of girls = 360

Therefore, we will get,

Ratio of boys to girls = 440/360

Ratio = (40*11)/(40x9)

Ratio = 11/9

Hence, the ratio of boys to girls is 11:9 and number of boys and girls is 440 and 360 respectively.

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Step-by-step explanation:

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3 years ago
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Eduardwww [97]

Answer:

The equation has no solutions .

Step-by-step explanation:

Given as :

<u>The linear equation is </u>

\dfrac{3}{4}(24 -16 x) = \dfrac{-2}{3}(18 x -27)

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Or,  \dfrac{3}{4} ×24 - \dfrac{3}{4} × 16 x =  \dfrac{-2}{3} × 18 x + \dfrac{2}{3} × 27

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8 0
2 years ago
What is 2000 minus 803
irina [24]
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3 years ago
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What is typically used to quantitatively compare the effectiveness of layouts? A. trial and error B. load-distance model C. expo
Andre45 [30]

Answer:

B. load-distance model

Step-by-step explanation:

A. trial and error

Trial and error is "a fundamental method of problem solving. It is characterised by repeated, varied attempts which are continued until success". But this method is not the best in order to compare effectiveness of layouts

B. load-distance model

The load-distance method is a "mathematical model used to evaluate locations based on proximity factors. The objective is to select a location that minimizes the total weighted loads moving into and out of the facility. The distance between two points is expressed by assigning the points to grid coordinates on a map". And that's the correct option since we are trying to measure the effectiveness of layouts quantitatively.

C. exponential smoothing

This is "a rule of thumb technique for smoothing time series data using the exponential window function". Wheighting observations using the exponential function. But this is a techinique used to smooth s time series not to compare effectiveness of layouts.

D.process control charts

The Control Chart is a "graph used to study how a process changes over time with data plotted in time order". But we don't want to see how the process changes the objective is quantitatively compare the effectiveness of layouts, and this one is not the best option for this.

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