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lesya692 [45]
3 years ago
12

Hi :)

Mathematics
1 answer:
astraxan [27]3 years ago
4 0

LETS GOOOOOOOOOOOOOOO

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Sylvanite is a mineral that contains 28.0% gold by mass. Determine how much sylvanite would you need to dig up to obtain 81.0 g
lidiya [134]
Since Sylvanite only contains 28% gold by mass, then to obtain 81.0 grams of gold, x amounts of sylvanite must be mined. To determine x, we divide 81 grams by 28%. This equation is shown below:

0.28X = 81

X = 81/0.28
X = 289.29 grams

Therefore, 289.29 grams of sylvanite must be dug up to obtain 81 grams of gold.
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27 • a • a • a as an expression?
Alekssandra [29.7K]

the expression is 27a^3   or (3a)^3

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The triangles shown below must be congruent. right awnsers only please.
tankabanditka [31]
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Find the area, in square units, of rectangle ABCD plotted below. A (-4,5) B (-2,-3) C (2,-2) D (0,6)
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3 years ago
Plz help me answer idknow
AleksandrR [38]

Let the number total slices = x

He ate (1/4) x

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