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Darya [45]
3 years ago
15

Help me plz 8th grade math

Mathematics
1 answer:
lina2011 [118]3 years ago
6 0
Hmm... How may I help you?
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Choose all expressions that are equal to 3.89 Hint: There’s three
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3 years ago
-k+3k combine like terms to create an equivalent expression​
Nimfa-mama [501]

Answer:

2k

Step-by-step explanation:

3k and -k are both like terms, so you can combine them. Adding opposite signs works in the same way as subtraction, so you can rewrite the expression as 3k-k, which is 2k.

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Can -4/3 be simplified?
ser-zykov [4K]
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What number is 40% of 720
pentagon [3]

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288

Step-by-step explanation:

Hope it helps :>

8 0
3 years ago
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To determine the number of trout in a​ lake, a conservationist catches 180 ​trout, tags them and throws them back into the lake.
GaryK [48]
The ratio of the trout with tags that are caught and the total trout with tags is first calculated.

     r = 12 trout / 180 trout = 1/15

Then, we divide the number of trouts caught without tag by the value obtained above.

     N = (48 - 12) / (1/15) = 540

Then, we add the number obtained above and 180.
     T = 540 + 180 = 720

ANSWER: 720
3 0
3 years ago
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