The first step to solving this problem is Multiplying In(x-1).
Answer:
Johnny needs to score 98 on third test to raise average to 94
Step-by-step explanation:
Given that average of two tests is 92.
The score of next test has to be found that means there will be a total of 3 tests.
The average will be:
![Avg = \frac{test1+test2+test3}{3}](https://tex.z-dn.net/?f=Avg%20%3D%20%5Cfrac%7Btest1%2Btest2%2Btest3%7D%7B3%7D)
It is also given that he has to raise his average to 98
We have to use the average formula for finding the third value
So,
![94 = \frac{92+92+test3}{3}\\94*3 = 184+test3\\282 = 184+test3\\test3 = 282-184\\test3 = 98](https://tex.z-dn.net/?f=94%20%3D%20%5Cfrac%7B92%2B92%2Btest3%7D%7B3%7D%5C%5C94%2A3%20%3D%20184%2Btest3%5C%5C282%20%20%3D%20184%2Btest3%5C%5Ctest3%20%3D%20282-184%5C%5Ctest3%20%3D%2098)
Hence,
Johnny needs to score 98 on third test to raise average to 94
Answer:maybe try using google
Step-by-step explanation: