The average age of the six people on a winter ski trip was twenty-six. An eleven year-old had to leave the trip early to attend
1 answer:
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In order to solve this triangle we must use cosine law:
Now let's plug in the values we are given:
Now let's plug in the values we are given:
4s + 5 = 19
First, subtract 5 from both sides. / Your problem should look like: 4s = 19 - 5.
Second, simplify 19 - 5 to 14. / Your problem should look like: 4s = 14.
Third, divide both sides by 4. / Your problem should look like: s =
.
Fourth, simplify to 
. / Your problem should look like: s = which is the answer.
First, subtract 5 from both sides. / Your problem should look like: 4s = 19 - 5.
Second, simplify 19 - 5 to 14. / Your problem should look like: 4s = 14.
Third, divide both sides by 4. / Your problem should look like: s =
Fourth, simplify