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Sauron [17]
3 years ago
12

Explain these questions, please

Mathematics
1 answer:
harina [27]3 years ago
3 0
How I was taught: Make sure both numbers are a fraction. If not put "1" as the denominator. Multiply straight across. Simplify if you can.
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When a jug is half- filled with marbles, it weighs 2.6 kg. The jug weighs 4 kg when it is full. Find the weight of the empty jug
baherus [9]

the difference between a full jug and a jug that is half full will give us the weight of the marbles only in a half full jug:
4 - 2.6 = 1.4 kg

In a half full jug that weighs 2.6 kg, the weight of the marbles is 1.4 kg 
the weight of the jug = 2.6 - 1.4 = 1.2 kg

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3 years ago
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kogti [31]
Here’s the step-by-step answer!

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fgiga [73]
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kvasek [131]
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4 years ago
What is the lateral area of the prism? Assume the figure is resting on its base.
dolphi86 [110]
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the lateral area, namely the area of the sides, as you see in the picture, is really just the area of 6 rectangles.

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simply get the area of each and sum them up, that's the lateral area of the prism.

\bf \stackrel{\textit{front and back}}{2(5\cdot 25)}~~~~+~~~~\stackrel{\textit{left and right}}{2(2\cdot 25)}

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3 years ago
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