We have to calculate the percent decrease in temperature and to choose the correct answer. We can solve the proportion: 320 / 280 = 100 / x; then we will cross multiply. 320 x = 280 * 100; 320 x = 28,000; x = 28,000 : 320 ; x = 87.5 %. Finally : 100% - 87.5 % = 12.5 %. Answer: The percent decrease is C. <span>12.5 %.</span>
Answer:
5b+3-b-b-4
Explanation:
First, you’ll do 5b-b-b which will become 5b-2b and equals 3b. Then 3-4 equals -1.
When simplified, you get 3b-1
The smallest common denominator is
2.9 x 5 = 14.5
Answer:
Step-by-step explanation:
10 5/6 km...in 5 days
(10 5/6) / 5 =
(65/6) / 5 =
65/6 * 1/5 =
65/30 =
2 1/6 kilometers per day <===
common ratio = a4/a3 = a3/a2
8/a3 = a3/18
(a3)^2 = 8 * 18
(a3)^2 = 144
a3 = 12 or a3 = -12
common ratio = 8/12 or common ratio = 8/(-12)
common ratio = 2/3 or common ratio = -2/3
Answer: 12 or -12
