120, 25% is 30, 50% should be 60, 75% should be 90, and 100% should be 120
Answer:
276 papers
Step-by-step explanation:
Make 230 into 10%=23. Multiply 23 by 2 to get 20%. Add that sum (46) to 230, to get how many more papers you graded this week=276.
I personally think its 17,000
Answer:
3.8
Step-by-step explanation:
the absolute value of any negative number is going to be positive.
Answer:
$10,000
Step-by-step explanation:
You can define a variable that represents the answer to the question: the amount invested at 3.5%. Let's say that is x. Then the amount invested at 5% is 16000-x, and the total interest earned is ...
0.035·x + 0.05·(16000 -x) = 650
-0.015x +800 = 650 . . . . . . . . . . . . simplify
-0.015x = -150 . . . . . . . . . . . . . . . . . subtract 800
x = 10,000 . . . . . . . . . . . . . . . . . . . . divide by -0.015
The amount that should be invested at 3.5% is $10,000.
