Giải hộ bài này vs, làm ơn có hậu tạ ạ huhu
1 answer:
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Answer:
4 seconds.
Step-by-step explanation:
Let t be the time in seconds when the cheetah catches the antelope.
-Cheetah's speed is 90ft/s and the antelope's is 60ft/s with a 120ft distance between them.
#The expression of the distance of the two when they catch up is;
#Since the distance of the two will be equal at that point:
Hence, the Cheetah catches the antelope after 4 seconds.
Answer:
208 km
16 tablets per day
Step-by-step explanation:
Given:
Length of training track run by Jason = 400 m
Number of times Jason ran on the track = 520
Therefore,
The total length covered by Jason = 520 × 400 = 208,000 m
now,
1 Km = 1000 m
thus,
208,000 m =
or
= 208 km
b) Amount of calcium carbonate in a tablet = 500 mg = 0.5 g
Maximum amount of calcium carbonate that can be taken = 8 g
hence,
the maximum number of tablets that she can take
=
=
= 16 tablets per day
I graphed this on a calculator sorry if it is not helpful.
