A sample of lake water contains 150grams of salt. If 30% of the water sample is salt, find the number of grams the entire sample weighs.
1 answer:
Answer:
500 grams
Step-by-step explanation:
Let's say that the total number of grams of the sample is x. We know that 30% of x is salt and we also know this quantity is 150 grams. So, we can write this as:
30% * x = 150
Remember that % is simply "out of 100", so 30% = 30/100 = 0.30. Then:
0.30 * x = 150
Divide both sides by 0.30:
x = 500 grams
Hope this helps!
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
Given
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(b)
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Step-by-step explanation:
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Something easy you could use:
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