In 1 hour Kalon by himself can clean 1/4 of a chimney.
In one hour Kalon and Marna together can clean
Therefore in 1 hour Marna working alone can clean
So, it takes Marna 3 hours to clean a chimney, working by herself.
Answer:
21, 42, 63, 84
Step-by-step explanation:
21 2/2=1
42 4/2=2
63 6/2=3
84 8/2=4
In an accute triangle the 3 angles are less than 90°.
The minimum lenght of the third side is if the other two sides form the lowest possible angle (close to 0 degrees), in which case the length approximates to zero, so if the number is an integer, the minimum length of the fhird side is 1.
The maximum length of the third side is if it is close to the hypotenuse of a right triangle with legs 8 and 15 =>
hypotenuse^2 = 15^2 + 8^2 = 289 => hypotenuse =17. So, the lenght of the third side must be less than 17.
So, the possible lengths of the third side are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16.
Answer:
(3,4) because only the y would change when it is being reflected over the x axis :)
Step-by-step explanation:
You probably just need to simplify the expression. To do this you just combine like terms. So you would subtract 38 from the 10 to get -28x and then subtract 47 from 36 which gives you -11. Your expression should be -28x-11.<span />
