Answer:
4/5
Step-by-step explanation:
80% = 0.8 = 8/10 = 4/5
Change the percent to a decimal and change it to a fraction, then simplify.
The model should have 5 equal pieces and 4 shaded.
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Hope this helps!!!
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Please mark this as brainliest!!!
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Thank You!!!
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:)</em></u></h3>
Recall your d = rt, distance = rate * time.
if, the southbound train is going at a speed of say " r " mph, since we know that the northbound one is going faster by 4 miles, than is really going at " r + 4 " mph then.
now, we know in 2.5 hours, they're 330 miles from each other, thus the southbound train has been rolling for 2.5 hours, and the northbound train has also been rolling for 2.5 hours.
if the northbound train has covered on those 2.5 hours say " d " miles, then the southbound train has covered the slack, or " 330 - d ".

how fast is the northbound going? well, r + 4.
Answer: 68
Step-by-step explanation:
Answer:
3/10 of the aquarium are yellow tangs.
Step-by-step explanation:
Given that in an aquarium 2/5 of the fish or surgeonfish and of these, 3/4 are yellow tangs, to determine what fraction of all fish in the aquarium are yellow tangs the following calculation must be performed:
2/5 = 0.40
0.40 x 3/4 = X
1.20 / 4 = X
0.30 = X
0.30 = 3/10
Therefore 3/10 of the aquarium are yellow tangs.