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dexar [7]
3 years ago
14

Estimate the product of 41.03 x 0.513.

Mathematics
1 answer:
alisha [4.7K]3 years ago
8 0

Answer

Roughly, it would be 20.5

The exact answer is 21.05

Step-by-step explanation:

To roughly get the estimate you round it to the nearest 1st decimal place in this case. So it'd be 41.0 x 0.5

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Toni rows a boat 4.5 km/h upstream and then turns around and rows 5.5 km/h back downstream to her starting point. If her total r
Masja [62]

Answer:

about 26 min

Step-by-step explanation:

Toni rows a boat 4.5 km/h upstream and then turns around and rows 5.5 km/h back downstream to her starting point

First we find the average speed

We add both speed and divide it by 2

\frac{4.5+5.5}{2} = 5

Now we find the distance for round trip

given total time is 48 mins. convert mins into hours

48 mins = 48 divide by 60 = 0.8

average speed = 5 km/hr

Distance = speed * time = 5 * 0.8 = 4 km

distance covered both ways = 4 km

so 4 divide by 2 = 2 km each way

To find time taken for upstream = distance of each way / speed of upstream

time = \frac{2}{4.5} = 0.44 hours

Now convert hours into minutes

0.44* 60= 26.4 minutes





3 0
3 years ago
How many solutions exist for the given equation 3x+13=3(x+6)+1 zero one two infinity many
Helen [10]

Answer:

Zero

Step-by-step explanation:

Given: 3x+13=3(x+6)+1

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Step 4: Subtract 3x from both sides

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Step 5: Simplify

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NO REAL SOLUTIONS

Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest if it's correct?  

3 0
2 years ago
Read 2 more answers
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Shalnov [3]

Answer:

B

Step-by-step explanation:

3 0
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3 years ago
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