Inversely proportion - The work out value of R and A is 3.6 and 2 respectively.
What is inversely proportion?
They are said to be inversely proportional when one quantity's value rises relative to another's decline or vice versa. It implies that the two quantities behave inherently differently. For instance, time and speed have an inverse relationship. The time decreases as you increase the speed.<u> Inverse proportion</u><u>, varying inversely, inverse variation, and reciprocal proportion </u>are additional terms used here to describe this kind of proportion.
Given, R 1/A
R = k/A
When R = 12 and A = 1.5
12= k× 1.5
k= 18
Now, when A=5, R= 18/5 = 3.6
And when R= 9, A = 18/9=2
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3x10^7= 30,000,000
15% of 30Million= 4,500,000
Model A is the third one
Model B is the last one
No there not it can even be converted into a a decimal and fractions
The area of a trapezoid is found by averaging the bases and multiplying the height. to average the bases, you take 22ft + 14ft to get 36ft and then divide it by 2 since there are 2 numbers to average to get 18ft. Then you just multiply that by 8ft to get your area of 144ft^2 (square feet).