What is the difference of the fractions? Use the number line and equivalent fractions to help find the answer.
1 answer:
9514 1404 393
Answer:
(c) -3/4
Step-by-step explanation:
Subtracting a positive number moves you to the left on the number line. Subtracting a negative number moves you in the opposite direction, to the right.
Here, we start at -2 1/2 = -5/2, and we move 1 3/4 = 7/4 to the right from there. Each mark on this number line is 1/4 unit, so we move 7 marks. The results is ...
-2 1/2 -(-1 3/4) = -5/2 +7/4
= -10/4 +7/4 = -3/4
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Answer:
A. 3s
Step-by-step explanation:
The height of the object after t seconds is given by:
When will the object hit the ground?
It hits the ground after t seconds, and t is found when . So
3 seconds, so the correct answer is given by option a.