jacob has test scores of 87,93,95,95 on his first four tests. What must he score on the final test to have at least a 93
93*5= 83+93+95+95 + T
solve for T
To calculate the score Jacob must achieve on the final test to have at least a 93 average, we can use the following steps:
1. Add up the scores on all five tests: 87 + 93 + 95 + 95 = 460.
2. Divide the total score by the number of tests (5) to find his current average: 460 / 5 = 92.
Now, to find out what score Jacob needs on the final test to have at least a 93 average, we can set up the following equation:
(87 + 93 + 95 + 95 + x) / 5 ≥ 93
Here, 'x' represents the score Jacob needs on the final test.
3. Multiply both sides of the equation by 5 to eliminate the denominator: 87 + 93 + 95 + 95 + x ≥ 93 * 5.
Simplifying: 460 + x ≥ 465.
4. Subtract 460 from both sides of the equation: x ≥ 465 - 460.
Simplifying: x ≥ 5.
Therefore, Jacob must score at least a 5 on the final test to have at least a 93 average.