7th grade homework, please help me=]?
14. Gilbert had a pasture with 65 cows. 45% of them are brown. Approximately how many of the cows are brown?
15. Laura has a rain gauge outside her house. It holds 21 ounces of water. As the rain started to fall, her gauge filled up with water. When the rain was gone, the gauge was 75% filled. Approximately how many ounces of water fell at Laura’s house?
16. Ross had 85 papers to grade from his students. He has graded 60 of them. Approximately what percentage of papers does he have left to grade?
17. How much did you pay if you got 30% off a $75 dress?
18. How much money do you have after a year if you had $500 in your account and earned 3% interest?
19. How much did you pay in total if you paid a 20% tip on a $150 bill?
20. How much money in interest did you earn if you had $450 in your account and got 2% interest on it?
i know it seems like alot =/
sorry …
Come on, these are so easy, just hit Start in the lower left, programs, accessories, and pick out the calculator. A percentage is entered into a calculator with decimals, two decimal places to the left. 25% would be .25
14 – multiply 65 by .45
15 – multiply 21 by .75
16 – Divide 60 by 85
17 – Multiply 75 by .70 (multiple ways to do this, you could also multiply by 30%, but you’d have to subtract that number from 75)
18 – Multiply 500 by 1.03 (if you multiply by just 3%, you still have to add that amount to 500, that’s your interest)
19 – Similar as above, multiply 150 by 1.20
29 – This time they only want interest, so just take 450 multiplied by .02, and that’s your interest
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