How many gallons of 5% ethanol gasoline must be mixed with how many gallons of 12% ethanol gasoline to get 700 gallons of 10% ethanol?

How many gallons of 5% ethanol gasoline must be mixed with how many gallons of 12% ethanol gasoline to get 700 gallons of 10% ethanol?

Four exams contribute to 75% of your final grade. Assume you score a 64% on the first exam, a 72% on the second, and 84% on the third. What would you have to score on your fourth exam to guarantee...

For math pls help I'm stuck

I have a math test and it said that a baby was born and was eight pounds and now it increased by thirty percent. What is it’s current weight?

James, priya, and siobhan work in a grocery store. James makes $7.00 per hour priya makes 40% more than James and siobhan makes 5% less then priya. How much does siobhan make per hour?

Mae ling earns a weekly salary of $360 plus a 5.5% commission on sales at a gift shop. How much would she make in a work week if she sold 4,200 worth of merchandise?

please give me the full solution to the answer

This a level 7 question and “a) and b)” are two different answers,please show your method and explain how you got the answers for both the questions.

Frank uses a calculator to figure out the total cost of a $46 skateboard. Including sales tax, the total is $47.38. What is the sales tax percentage?

A dairy needs 306 gallons of milk containing 5% butterfat. How many gallons each of milk containing 6% butterfat and milk containing 3% butterfat must be used to obtain the desired 306 gallons?

Leo bought a used car for X dollars. One year later the value of the car was 0.88x. Which expression is another way to describe the change in the value of the car. the choices are....

Find the percent commission

help

Yesterday, Teddy played a game repeatedly on his computer and won exactly 85% of the games he played. Today, Teddy played the same game repeatedly, winning every game he played, until his over-all...

$86,$245,and $295 and how much must he sell ro earn $60 in commission?

Please help

how is this worked

I honestly don't understand this and other questions with the same base. If anyone can help me thank you so much.

Must find markup rate of the blouse

We are finding the percent of the shipping and handling fee in this problem. Percent problem for real life.

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