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maxonik [38]
3 years ago
9

Which is a reasonable estimate to the following problem 94 . 689

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
4 0
62,000 is reasonable (because of rounding)90*690=62,000
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Monica [59]

Answer:

I:  82.1

Step-by-step explanation:

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2 years ago
The graph below describes the journey of a train between two cities.
Veseljchak [2.6K]

Answer:

[A] Acceleration in first 15 min = 200  km/h²

[B] Distance between two cities = 125 km

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Step-by-step explanation:

To Solve:

Acceleration in first 15 min

Distance between two cities  

Average speed of journey

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[A] Work out the acceleration, in km/h?, in the first 15 mins.

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Each vertical block is 10 km/hr

Time                     Velocity  km/hr

0 Min  ( 0 hr)            0

15 Min (1/4 hr)           50

45 Min (3/4 hr)         50

60 MIn  ( 1 hr)            100

90 Min  ( 3/2 hr)        100

120 Min ( 2hr)            0

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=  25/4  + 25 + 75/4   + 50 + 25

= 125

Distance between two cities = 125 km

[C] Work out the average speed of the train during 20 the journey.

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[RevyBreeze]

5 0
2 years ago
Can someone help me with these problems?
arlik [135]
1: 200-75= r

2: 73-29= v
73-29=44
v=44
6 0
3 years ago
Read 2 more answers
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nikdorinn [45]

Answer:

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Step-by-step explanation:

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2 years ago
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iVinArrow [24]

Answer:

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3 0
3 years ago
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