18 + x = 42
18 (miles traveled until gas was needed) + x (the miles traveled without needing gas) = 42 (total miles traveled)
In this situation, quarters can only take you as far as $3.50. After that, three nickels will get you up to $3.65.
UM i need more details sorry but i dont know it
Ur welcome
A friend trying to help
Answer:
C. a = 7
D. c = -3
Step-by-step explanation:
C. 7(2a + 3) + 21 = 100+ 40
14a + 21 + 21 = 140
14a = 140 - 21 - 21
14a = 98
a = 7
D. 6+ 14 - 12c = 56
20 - 12c = 56
-12c = 56 - 20
-12c = 36
c = - 3
Answer:
it is 8 and two thirds
Step-by-step explanation:
