The common difference can be found from
The first term of the sequence can be found from either of the given terms.
The sum of 40 terms is
The sum of the first 40 terms is 3800.
X = $ 10 dvd's.....y = $ 12 dvd's
x + y = 200....x = 200 - y
10x + 12y = 2200
10(200 - y) + 12y = 2200
2000 - 10y + 12y = 2200
-10y + 12y = 2200 - 2000
2y = 200
y = 200/2
y = 100 ....so there were 100 $ 12 dvd's sold
Answer:
3x+(4x-1)+90°=180°{sum of angles in a triangle}
3x+4x-1+90°=180°
7x+89°=180°
7x=180°-89°
7x=91°
divide both sides by 7
x=13
Answer:
0.23
Step-by-step explanation:
Since 23 hundredths is 23 over one hundred, 23 hundredths as a Fraction is 23/100. If you divide 23 by one hundred you get 23 hundredths as a decimal which is 0.23. To get 23 hundredths as a Percent, you multiply the decimal with 100 to get the answer of 23 percent.
Answer: a, c, e explanation: I did that test and got 100%
