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Nostrana [21]
3 years ago
15

A cyclist travels at 10 km/hr for 2 hours and then at 13 km/hr for 1 hour.

Mathematics
2 answers:
slavikrds [6]3 years ago
5 0

Answer:

11.5 m/s

Step-by-step explanation:

Strike441 [17]3 years ago
3 0
The average speed would be 11km/h. 10 km 1 hour 10 km another hour 13 km 1 hour. A total of 3 hours. Add the three number 10+10+13= 33. Since there are three numbers divide by 3. 33/3=11. 11 is the average speed within the three hours.
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For a moving object, the force acting on the object varies directly with the objects acceleration. When the force of 63 N acts o
Serjik [45]

Answer:

49N

Step-by-step explanation:

Step one

Given

When the force of 63 N acts on a certain object

the acceleration of the object is 9/ms^2

Firstly, we need to calculate the mass m

F=ma-------1

m= F/a

m= 63/9

m= 7kg

Step two:

Also, if the acceleration of the object becomes 7 m/s^2

then the force

Note: the mass remains the same= 7kg

F=ma

F=7*7

F= 49N

4 0
2 years ago
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hodyreva [135]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
Find the x- and y-intercepts of the graph of the linear equation −x+8y=4
Andreyy89
First set the equation equal to y by adding x to each side, then divide everything by 8. then set x to zero and solve to find the y - intercept of 1/2 which is just 4/8 reduced. you get this answer because x/8 becoming 0/8 is just 0 leaving you with only 1/2. then reset the equation with x and set y to zero and solve for x to get the x- intercept of -4. you get this by subtracting 1/2 from both sides leaving you -1/2=x/8 and multiply by 8 to get -4=x

4 0
3 years ago
Judy bought a coat at a 20% discount sale for $68. What was the original price of the coat?
11111nata11111 [884]
80% of (Cost) = $68

80% is also 0.8:

0.8 x Cost = $68

dividing each side by 0.8

Cost = 68 / 0.8 = 85 = $85
8 0
3 years ago
When rounded, what is the value of the 6 in 4.769
levacccp [35]
If u round tha to the nearest 10th it’s 4.8
7 0
3 years ago
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