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r-ruslan [8.4K]
3 years ago
14

A train traveled 450 kilometers (450 km) east from its starting point for 9 hours (9 h). What was the average speed of the train

during its trip?
Mathematics
1 answer:
elixir [45]3 years ago
4 0

Answer:

You need to find the average for your numbers

Step-by-step explanation:

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The sum of two numbers is 54. The large number is 18 more than the sampler number. What are the numbers ?
Karolina [17]

Answer: a=36; b=18


Step-by-step explanation:

1. You know that the sum of two numbers is 54, then, you have:

a+b=54

2. According to the problem, the larger number is 18 more than the sampler number, this can be expressed as following:

a=b+18

3. Then, you must substitute the second equation into the first equation and solve for b:

b+18+b=54

b=18

4. Then the value of a is:

a+18=55

a=36



7 0
4 years ago
Factoring using GCF 15cd + 30c^2d^2
olchik [2.2K]

Answer:

15cd(1 + 2cd)

Step-by-step explanation:

greatest common factor is 15cd

15cd*1 + 15cd*2cd\\= 15cd(1 + 2cd)

8 0
2 years ago
1
saul85 [17]

Answer:

The ans from the bottom left

8 0
4 years ago
Which of the following is the reciprocal of 5 3/7 <br><br> 38/7<br> 7/38<br> 22/3<br> 3/22
elixir [45]
The answer is 7/38.
6 0
3 years ago
Read 2 more answers
A fair sold a total of 3,300 tickets on friday and saturday. it sold 100 more on friday than on saturday.how many tickets did th
IgorLugansk [536]
On Saturday - x tickets
on Friday - (x + 100)
altogether
x+x+100=3300
2x=3200
x=1600
x+100=1600+100=1700
1700 on Friday

7 0
3 years ago
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