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Ket [755]
3 years ago
15

A car travels 21 km in 16 minutes. What is its average speed in km/h?

Mathematics
1 answer:
bekas [8.4K]3 years ago
6 0

Answer:

78.6km/h

Step-by-step explanation:

<em><u>Speed=distance÷time</u></em>

<u>distance</u>=21km

<u>time</u>=16 minutes<u>(convert into hour by dividing it</u> <u>with 60)</u>

=16÷60=0.267

Speed=21÷0.267=78.65km/h

speed =  \frac{distance }{time}

speed =  \frac{21}{0.267}  = 78.6km(h

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katrin [286]

The solution set for the given inequality is g > -7

<u>Given the following inequality:</u>

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<h3>What is an inequality?</h3>

An inequality can be defined as a mathematical relation that is typically used to compare two (2) integers or variables in an equation by illustrating any of the following:

  • Greater than (>).
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Simplifying the inequality, we have:

4 - 5g > 39\\\\5g > 4-39\\\\5g > -35\\\\g > -7

Read more on inequality here: brainly.com/question/24372553

6 0
2 years ago
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Step-by-step explanation:

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3 years ago
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Rudiy27
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3 years ago
A mountain climber starts a climb at an elevation of 453 feet above sea level. At his first rest stop he has climbed 162 feet, a
Sedaia [141]
     162
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=   369
     
      
Okay, so it says he descends 285 feet after he's climbed 369 feet. That means he needs to descend a bit more to reach 453 feet, which we'll just call 0 for now. First, we need to do some subtraction:

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8 0
3 years ago
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slega [8]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
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