9514 1404 393
Answer:
5
Step-by-step explanation:
Add the latter two equations and you get ...
(a +b) +(a -b) = (7) +(3)
2a = 10 . . . . . . . . . . . . . . . simplify
a = 5 . . . . . . . divide by 2
1) 1 - 3/7 = 4/7 - he has left (=16 dollars)
2) 16 : 4/7 = 16 * 7/4 = 28 dollars - he has money
3) 28 * 3/7 = 12 dollars - he spent on suvenirs.
Answer:
2
Step-by-step explanation:
4x+3=x+9
4x-x=9-3
3x=6
x=6/3
x=2
Answer:
R = 5t
Step-by-step explanation:
given s is three times t then s = 3t and
R = 3t + 2t = 5t
Y = 1/6x^2 i would love the brainliest plz