A bangle is made of gold bronze in ratio 4:7 WT of silver 557 mg . Find the WT of gold in bangla
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4 gold
7 silver
557 mg of silver
Set-up a proportion
Cross-multiply
557 * 4 = 318.2857
7x = 318.2857
Divide both sides by 7
7x/7 = x
318.2857/7 = 45.4693
Round to the nearest ones
45.4 --> 45
Answer: There is approximately 45 mg of gold
arnab2261:
wrong yaar.
Answered by
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4/7=x/557
7x=4*557
x=4*557/7
x=4*79.56=318 (approx)
Thus, weight of gold I'd approximately 318mg
Hope it helps,
And if it helps please mark it as brainliest..
7x=4*557
x=4*557/7
x=4*79.56=318 (approx)
Thus, weight of gold I'd approximately 318mg
Hope it helps,
And if it helps please mark it as brainliest..
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