P _< 172 should be correct
Just solve until the answers are the same
25 times x plus 30 for John
15 times x plus 50 for Mary
5/50 or 1/10 in winning a prize.
Answer:
$4.72
Step-by-step explanation:
16.79+28.49=45.28
50-45.28=4.72
Answer:
z = 4/3 or 1 1/3
Step-by-step explanation:
z−4/9−1/3=5/9
Change 1/3 to have a denominator of 9
1/3 *3/3 = 3/9
z−4/9−3/9=5/9
Combine like terms
z -7/9 = 5/9
Add 7/9 to each side
z-7/9+7/9 = 5/9+7/9
z = 12/9
z=4/3
or as a mixed number
z = 1 1/3
