A100 ml pitcher of lemonade is currently 90% water and 10% lemon concentrate. how much water must you add to change the balance to 95% water and 5% lemon concentrate?
suppose that lemonade with 95% water and 5% lemon concentrate is still too strong (see the previous problem.) how much more water you add to make the mixture 99% water and 1% lemon concentrate

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2

a) 32pie square meters

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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