While Michelle sat observing birds at a bird feeder, one fourth of the birds flew away when they were startled by a noise. Two b irds left the bird feeder to go to another stationed a few feet away. Three more birds flew into the branches of a nearby tree. Four birds remained at the feeder. How many birds were at the feeder initially?
1 answer:
12 Birds To solve this problem, work it from the end towards the beginning. Number of birds left = 4 Three more birds flew into the branches of a nearby tree. So you lost 3 birds. Add them to the total giving you 7.
Two birds left the bird feeder to go to another stationed a few feet
away. So you had a loss of 2 birds. Add them to the total giving you 9.
On fourth of the birds flew away when they were startled by a noise.
Now we have something. We know that after one fourth flew away, 9 were
left. X - (1/4)X = 9 Merge the X terms. (3/4)X = 9 Divide both sides by 3/4 X = 9/(3/4) X = 9/1 * 4/3 X = 36/3 X = 12 So the number of birds at the feeder initially was 12. To prove it. Start with 12. One fourth flew away, leaving 9. Two more leave, leaving 7. Three more leave, leaving 4.
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Answer:
The answer would be 1/9 or for decimal form 0.1 with the line above the 1
20 2/3 hrs or 20 hours and 40 minutes cleaning his room. There are 30 months in may, so you multiply this by 2/3 to get 20 2/3 hrs
Answer:
8%
Step-by-step explanation:
To find the percent, divide 16 by 200, then multiply it by 100.
(16 / 200) x 100
0.08 x 100
= 8
So, 16 is 8% of 200
Answer: B
Step-by-step explanation:
Remove parenthesis 5x + 23 + 17x - 41 = 180 Combine like terms 22x - 18 = 180 Add 18 to both sides 22x = 198 Divide by 22 solution: x = 9