Mathematics, 03.02.2020 16:56 twirlergirl800
Apetroleum company has two different sources of crude oil. the first source provides crude oil that is 65% hydrocarbons, and the second one provides crude oil that is 90% hydrocarbons. in order to obtain 80 gallons of crude oil that is 75% hydrocarbons, how many gallons of crude oil must be used from each of the two sources?
Answers: 3
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The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?
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