Answer: 720
Step-by-step explanation:
From the question, we are informed that cthe researches counted 400 turtles, of which 20 were marked. This implies that 20/400 = 1/20 were marked.
If the researchers wanted to track the reptile population around a lake, and the researchers marked 36 turtles, the estimate of the total population will then be:
1/20 × x = 36
x/20 = 36
x = 20 × 36
x = 720
The turtle population is 720
Answer:

Step-by-step explanation:
y = 3 - xy
Let x = 1
y = 3 - (1)y
Expand brackets.
y = 3 - y
Add y to both sides.
2y = 3
Divide both sides by 2.
y = 3/2
If your question is "How many gallons of paint will he have left after painting the mural gallon", the answer is:
(11/4+11/3+7/8) * (1 - 3/4) = 175/96 gal ≈1,82 gal
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Answer: 5.04
Step-by-step explanation:
= 9.87
9.87 divided by 1.96 = 5.04