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Evgesh-ka [11]
3 years ago
7

Jamel watched his older brother Robert lift weights. The bar alone had a mass of 20 kg. On the bar he had tow 11.4 kg weights, t

wo 4.5 kg weights , and four 450 g weights. What mass was Robert lifting ?
Mathematics
1 answer:
slavikrds [6]3 years ago
6 0
All you do is add them all together...
20 + 11.4 + 11.4 + 4.5 + 4.5 + 0.45 + 0.45 + 0.45 + 0.45 = 53.6Kg
(note that 0.45 is 450g in Kg, When adding things such as weight or length you want to make sure that they are all in the same unit)
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allochka39001 [22]

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Step-by-step explanation:

y = 3x + 3

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-----------------------------------------------------------------------------------------------------------

To solve this, you need to understand a few things:

a) If two lines have the same slope but different y-intercepts, they are parallel when graphed and thus do not have any solutions

b) If two lines have the same slope and same y-intercepts, they are the same line when graphed and thus do not have infinitely many solutions

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These two lines have different slopes but the same y-intercept (condition c)

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2 years ago
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Answer:

see below

Step-by-step explanation:

A = pi r^2

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The combined area of two circles is  1/2  the area as the area of a circle with twice the radius.

5 0
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