Ahmad and Kumar together can paint a house in 12 days. Kumar and Chong Beng together can complete the same job in 15 days while
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Step-by-step explanation:
The answer is:
And this question isn't to difficult, and the trick is realizing they all have the same denominator.
The denominator is essentially saying how many pieces of the whole (1) is being broken into.
So the denominator 9, means that you're breaking up the number 1 into 9 pieces.
The numerator is telling us how many pieces of this "broken up 1" the number has.
So 8/9 has more of these "broken up pieces" than 7/9, and it's so vitally important that these numbers have the same denominator.
For example: 1/2 and 30/90
30/90 may appear to be bigger, since the numerator of 30, but it's actually smaller.
The reason for this is because we can simplify it to: 1/3 by dividing both sides by 30 so the value remains the same.
Now we can actually compare 1/2 and 1/3 without changing the denominators.
1/3 is "one piece" of a broken up one, that was "broken" into 3 pieces.
1/2 is "one piece" of a broken up one, that was "broken" into 2 pieces.
So if I split one whole, into three pieces, each individual piece is going to be smaller than had I split that one whole into 2 pieces.
So 1/2 is actually bigger than 1/3
The linear equation that can be used to calculate daily car rentals is f(x) = -20x + 320
Since we are not told what to find, we can look for t<u>he linear equation that can be used to calculate daily car rentals</u>;
- Let the charge amount be y
- Let the amount per mile of the truck rent be x.
- If rent-An-SUV charges an $80 fee to rent a truck and $12 per mile, this can be expressed in coordinate form as (12, 80)
- Similarly, if another rental company charges a $150 fee to rent a truck and $8.50 per mile, this can also be written in a coordinate form as (8.50, 150)
The standard linear expression is given as f(x) = mx + b
- m is the rate of change
- b is the y- intercept
Get the rate of change;
Get the y-intercept;
80 = -20(12) + b
80 = -240 + b
b = 320
Get the required linear equation;
f(x) = mx + b
f(x) = -20x + 320
Hence the linear equation that can be used to calculate daily car rentals is f(x) = -20x + 320
Learn more on linear equation here: brainly.com/question/12788590