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Mashcka [7]
2 years ago
15

a train covers a distance at an average speed of 60km / hr in 12 hours. what should be the speed of the train if the same distan

ce is to be covered in 10 hours
Mathematics
1 answer:
olya-2409 [2.1K]2 years ago
4 0

Step-by-step explanation:

Distance = speed x time = 60 x 12 = 720 km. Speed = 72 km / h

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Amanda's parents had a birthday dinner for her at Sushi Yama restaurant. The bill came to $74 before the tip. They left an 18% t
Vika [28.1K]

Answer:

<h2>$87.32</h2>

Step-by-step explanation:

Step one:

given data

we are told that the initial bill is $74

thereafter they gave a tip worth 18% of the bill

let us compute what 18% of $74 will amount to

Step two:

=18/100*74

=0.18*74

=$13.32

The added expenses is $13.32

Hence the total cost is

the initial bill plus the tip

=74+13.32

=$87.32

3 0
3 years ago
Kent walked to the bus stop, then sat and waited until the bus arrived. He rode the bus for 25 minutes, then walked the last 3 b
hodyreva [135]
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3 years ago
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There are 150 children in middle school.30% of the students are 6th graders. How many 6th graders are at CPCS?
IceJOKER [234]

Answer:

45 children

Step-by-step explanation:

30% of 150=45

6 0
3 years ago
Read 2 more answers
חן
N76 [4]

Answer:

Step-by-step explanation:

This is a fascinating question. It turns out to be true because of the relationship between a 30 degree angle and a 60 degree angle

The answer is that the product of sin30*sin60 = cos(30)*cos(60). This happens because sin(60) = cos(90-60) = cos(30)

Other angles will do the same thing sin36 * sin54 = cos(54)*cos(36)

8 0
2 years ago
Find the quotient. Simplify if possible -6/10 + (-5/7)
Zepler [3.9K]

Answer: The correct answer is \frac{21}{25}

Step-by-step explanation:

To find a quotient, we need to divide the two numbers. The equation given to us is :

\frac{-6}{10}\div \frac{-5}{7}

To Simplify the above equation and finding out the quotient, we need to divide the above equation, we get:

\Rightarrow \left(\frac{\frac{-6}{10}}{\frac{-5}{7}}\right)

Taking the reciprocal of the denominator and multiplying it with the numerator, we get:

\Rightarrow \frac{-6}{10}\times \frac{7}{-5}\\\\\Rightarrow \frac{42}{50}\\\\\Rightarrow \frac{21}{25}

Hence, the correct answer is \frac{21}{25}

5 0
3 years ago
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