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lilavasa [31]
3 years ago
12

A boat travels a distance of 25 km in 30 minutes. What is the average speed of the boat? (Hint: Remember 30 minutes is .5 of an

hour)
Mathematics
1 answer:
Juliette [100K]3 years ago
5 0

Answer:

50km per hour

Step-by-step explanation:

When you think of average speed it would be per hour, so when thinking 30 minutes is .5 of a hour that means when you add 30 minutes and 30 minutes you get 1 hour so you would add 25km and 25km and you would get its average speed per hour, I hope that made sense

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3[-x + (2 x + 1)] = x - 1<br><br><br> what is x
Nataly_w [17]

The answer you are looking for is x=-2.

Solution/Explanation:

Writing out the equation

3[-x+(2x+1)]=x-1

Simplifying inside of the brackets first

Combining like terms, since -x+2x=x

3(x+1)=x-1

*You can remove the parenthesis, if preferred.

Using the Distributive Property on the left side of the equation

3x+3=x-1

Now, subtracting the "x" variable from both sides

3x+3-x=x-x-1

"x-x" cancels out to 0.

3x+3-x=-1

Combining like terms and simplifying

3x-x+3=-1

2x+3=-1

Subtracting 3 from both sides of the equation

2x+3-3=-1-3

"3-3" cancels out to zero.

2x+0=-1-3

2x=-1-3

Simplifying the right side of the equation

2x=-4

Finally, dividing both sides by 2

2x/2=-4/2

Simplifying the final part of the problem

Since 2x/2=x and -4/2=-2

x=-2

So, therefore, the final answer is x=-2.

Hope that this has helped you. Good day to you.

4 0
2 years ago
Which of the following sine values is the lowest<br><br> Sin(82)<br> Sin(3)<br> Sin(78)<br> Sin(15)
MaRussiya [10]
The answer is either Sin 3 or sin 82
4 0
3 years ago
In the equation -y = 10x, what is the unit rate
Andrews [41]
The unit rate<span> is a comparison of two different quantities when they are combined together</span>
4 0
3 years ago
Can anyone solve step by step, please.<br><br> Just solve it on paper and send the picture
MissTica

Answer:

L₄₂ = 83.4

Step-by-step explanation:

Put 42 where n is and do the arithmetic.

... L₄₂ = 75 + 0.2·42

... = 75 + 8.4

... = 83.4

7 0
3 years ago
HELP PLS!! <br> What is the value of x?<br> Enter your answer in the box.<br> X=
natali 33 [55]

Answer:

The answer is 61

Step-by-step explanation:

The anwer is 61 becuase a triangle =180

so if 67 and 52 =119 then you have  to subtract that from 180 getting

61!!!!

Hope this helps

Stay safe:)

5 0
3 years ago
Read 2 more answers
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