One-half cup of black beans provides 15% of the potassium you need daily. You must get the remaining 2890 milligrams from other sources. How many milligrams of potassium should you consume daily?

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Answer 1 · 2016-12-07T11:31:32

Total potassium intake required is 3400 milligrams

Let the total amount required be $t$

You have 15% already. This means that the amount yet to be taken is:

$(100-15)% = 85%$

so $" "85%t=2890$

write as:

$color(brown)(85/100 t=2890)$

Multiply both sides by $color(blue)(100/85)$

$color(brown)(color(blue)(100/85xx)85/100xxt=color(blue)(100/85xx)2890)$

$1xxt= 3400$