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soldi70 [24.7K]
4 years ago
11

A manatee surfaced for air 3 times in 120 seconds.how many seconds went by before the manatee surfaced the first time if it held

its breath for the same rate?
Mathematics
1 answer:
Juliette [100K]4 years ago
7 0

Answer:

40 seconds

Step-by-step explanation:

The ratio would be 3:120, indicating the amount of times it went up for air in 120 seconds. In order to find the answer, we'll find the unit rate. 120 divided by 3 is evenly 40. That means, the unit rate is 1:40. It also means that 40 seconds went by before the manatee surfaced the first time (if it held its breath for the same rate).

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babymother [125]

It's a isosceles right angled triangle

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\\ \sf{:}\Rrightarrow JK^2=17^2+10^2

\\ \sf{:}\Rrightarrow JK^2=289+100

\\ \sf{:}\Rrightarrow JK^2=389

\\ \sf{:}\Rrightarrow JK=19.72

4 0
3 years ago
How many three-digit positive integers <img src="https://tex.z-dn.net/?f=x" id="TexFormula1" title="x" alt="x" align="absmiddle"
Anastaziya [24]

Answer:

  40

Step-by-step explanation:

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As it happens, 100 is the smallest 3-digit solution. So, there are 40 three-digit numbers that are of the form 100 +23n, hence 40 solutions to the equation.

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3 0
3 years ago
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harina [27]

Answer:

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Step-by-step explanation:

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So the answer is 34

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Answer:

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