Answer:
9km per litre
Step-by-step explanation:
Rate=180km/20l
Rate=9 km/l
Answer: option A is the correct answer.
Step-by-step explanation:
s represents the number of pairs of shoes that Rich's sells.
P represents the total pay from selling s pairs of shoes.
He is paid a base salary of $25, plus $5 for every pairs of shoes he sells.
The relationship between his pay and pairs of shoes sold can be represented by the linear equation which is expressed as
p = 25 + 5s
For a week in which he sold 7 pairs of shoes, his total pay would be
p = 25 + 5 × 7
p = 25 + 35
p = $60
I think the answer is 16.5 sorry if its not right
Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1