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Ksenya-84 [330]
3 years ago
15

A car travels the first 50km of its journey at an average speed of 25m/s and the next 120km at an average speed of 80km /h . The

car completes the last part of its journey at an average speed of 90Km/h in 35 minutes . Find the average speed for its entire journey , giving your answer in km/h
Step by step
Mathematics
1 answer:
Ghella [55]3 years ago
3 0

Answer:

What do you need me to do

Step-by-step explanation:

You might be interested in
Mrs. Suarez sold pies for a fundraiser. she sold 3 5/6 pies the first day and 1 3/6 the second day. how many pies did she sell i
LuckyWell [14K]

Answer: 5 2/6

Step-by-step explanation: 3 5/6 + 1 3/6 = 5 2/6 because you need to add the pie wholes,(3 + 1) and then you have the fractions, 5/6 + 3/6. So since all you need to make another whole is 1/6 you take it away from 3/6 and give it to 5/6 so now you have another whole. 4 wholes plus 1 new whole is 5 wholes. Since you took 1/6 away from 3/6 you now have 2/6. So 5 wholes and 2/6 were sold.

3 5/6 + 1 3/6 =

3 + 1= = 4

5/6 + 1/6 = 1

3/6 - 1/6 = 2/6

4 + 1 = 5

5 + 2/6 = 5 2/6

3 0
2 years ago
PLS HELP ME..........
bija089 [108]

Answer:

  • x = 2

Step-by-step explanation:

<u>x is side of right triangle with other sides:</u>

  • √20 and 8/2 = 4

<u>Then x is:</u>

  • x² = √20² - 4²
  • x² = 4
  • x = 2
8 0
2 years ago
I can't seem to figure it out
tekilochka [14]
The slope is 2 because remember, y= mx+b
m= slope
the slope is always multiplied by x
6 0
3 years ago
Read 2 more answers
Ya'll help me w/slope, please
uranmaximum [27]

I got ECHA... hope it's right:)

4 0
2 years ago
6) What is 13% of 33.39?
icang [17]

Answer:

1. We assume, that the number 33.39 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 33.39 is 100%, so we can write it down as 33.39=100%.

4. We know, that x is 13% of the output value, so we can write it down as x=13%.

5. Now we have two simple equations:

1) 33.39=100%

2) x=13%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

33.39/x=100%/13%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 13% of 33.39

33.39/x=100/13

(33.39/x)*x=(100/13)*x       - we multiply both sides of the equation by x

33.39=7.6923076923077*x       - we divide both sides of the equation by (7.6923076923077) to get x

33.39/7.6923076923077=x

4.3407=x

x=4.3407

now we have:

13% of 33.39=4.3407

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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