If you use the first answer, the equation becomes 2x + 2y = 16. You could subtract this from equation Q to eliminate x.
The second answer makes equation P -2x - 2y = -16. You could add this to equation Q to eliminate x. You can use both of these methods to eliminate the x term, but if you can only choose one, you should choose the second option.
To find the rate in miles per hour, divide the miles by the hours.
(1 1/2 miles)/(3/5 hour) =
= 3/2 miles * (5/3 hour)
= 5/2 mph
= 2 1/2 mph
Her walking rate is 2 1/2 mph.
(4 1/2 miles) / ( 2 1/2 mph) =
= 9/2 miles / (5/2 mph)
= 9/2 * 2/5 hours
= 9/5 hours
= 1 4/5 hours
From 9:00 a.m. to 11 a.m., she has 2 hours, but she only needs 1 4/5 hours to walk, so she will make it to work on time.
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➷ First find two values that multiply to make 45 but add to make -14
As you will figure out through trial and error, it is -9 and -5
Factorize it with these values:
(g - 9)(g - 5)
The actual values for g would be the opposite of what is in the parenthesis
Therefore, g = 9, or g = 5
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➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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X^2= (x-2[root of x])(x+2[root of x])
