Plane B is flying 75mph faster than Plane A. Find the time it takes for Plane A to travel 750 miles if it takes Plane B the same amount of time to travel 900 miles.

2 hrs

Step-by-step explanation:

The formula for speed is given as:

Let X be the speed of plane B. Given that the time to cover there respective distance is equal, we can equate as below:

Plane A's time is therefore calculated as:

Hence, it takes A 2 hrs to travel 750 miles.

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

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