Answer:
Step-by-step explanation:
9/2 / 8/3
9/2 x 3/8
27/16 = 1 13/16
The least common multiple of 5 and 8 is 40. This is because when you go by multiples of 5 and 8 the multiple that is the “smallest number” (LCM) of both numbers is 40. :)
Rita's error is in the sign of 2.75 in her equation. If x is her selling price, Rita needs to find the value of x in
8(x -2.75) = 78
x = 2.75 +78/8 = 12.50
Answer:
(C) Annie did not make a mistake
Step-by-step explanation:
To isolate the variable k in the equation , we'd have to subtract 7.5 from both sides so we just had k on one side.
This is exactly what Annie did, and therefore, her answer is correct.
Hope this helped!