Let u be the number of used cars and n the number of new cars, then u+n=17.
Sales values: 7000u+16000n=191000; so 7u+16n=191.
Since n=17-u, we can rewrite this: 7u+16(17-u)=191.
7u+272-16u=191, 9u=272-191=81 and u=9. So 9 used cars were sold (8 new).
5x+20=445
The 5x represents you and your four friends because there’s a total of 5 of you the 20 represents what you paid for parking and the 445 is the total if you solve it you’ll get what you paid for each person
Answer:
Step-by-step explanation:
Anything multiplied by zero is zero:
