Answer:
98
Step-by-step explanation:86+86=172
368-172=196
196/2=98
<span>46 <= grade < 96
First, let's write the equation for the lower limit that the student must get for a B.
(x + 92 + 82 + 88 + 92)/5 = 80
Multiply both sides by 5 giving
x + 92 + 82 + 88 + 92 = 400
Subtract 92, 82, 88, 92 from both sides
x = 400 - 92 - 82 - 88 - 92 = 46
So the student has to get 46 or higher on the test to make a B.
Now let's compute the upper limit
(x + 92 + 82 + 88 + 92)/5 < 90
Multiply both sides by 5
(x + 92 + 82 + 88 + 92) < 450
Subtract 92, 82, 88, 92 from both sides
x < 450 - 92 - 82 - 88 - 92 ) = 96
So the student has to get a grade of less than 96 to get a B.</span>
Answer:
+2,500
Step-by-step explanation:
Since sea level is the 0 in the problem, 2500 above 0 is +2,500
When distributing the negative to the (5-9y) you need to distribute it to both the 5 and the -9 so your 9 should be positive now. So it should be 72+24y = 4y-5+9y
Answer:
Step-by-step explanation: