can someone please help me?
on an algebra test, theh ighest grade was 44 points more than the lowest grade. The sum of the two grades was 140. Find the highest grade.
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#1MulaloAnswered at 2013-04-15 10:53:13
Let x be the highest grade and y be the lowest grade
x - y = 44 -> equation 1 (Difference between highest and lowest grade
x + y = 140 -> equation 2 (sum of two grades)
Adding the above equations,
2x = 184
x = 92
y = 92-44 (from euqation 1)
y = 48
Highest grade = 92
Lowest grade = 48
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