P = 12 + 6 + 8,5 = 18 + 8,5 = 26,5 mm
A = 12 × 4 / 2 = 48 / 2 = 24 mm²
Answer:
262.6/300% for the first 3 test if you were to add another test it would be 400% total and you need 360% of test grades to have an average of 90% and so 360 - 262.6 = 97.4%
Step-by-step explanation:
Answer:
Step-by-step explanation:
You will eliminate y because 3y-3y=0
No, because if x was 2:
5(2) + 3(2)= 10+6
=16
5(3) + 2y= 15 + 17y, it would already be to high of a number
