Answer:
umm what lanuage is that
Step-by-step explanation:
20 1/2= 4 hours
20 1/2÷4= 5 1/8 1 hour
for 9 hours = 5 1/8×9
=46 1/8
18x-8x2=0
Two solutions were found :
x = 9/4 = 2.250
x = 0
Step by step solution :
Step 1 :
Equation at the end of step 1 :
18x - 23x2 = 0
6m-3k²
= 6(7) - 3 (2)²
= 42 - 3(4)
= 42 - 12
= 30
m + | 2m-k|
7 + | 2(7) - 2|
7 + | 14-2|
7 + 12
= 19