x + 2y = 4
2x - 2y = 5
Adding both the equations:
x + 2y + 2x - 2y = 9
3x = 9
x = 3
y = 4-x /2 = 1/2
C- Begin at 53, travel 34 units to the left
Answer:
660 exchanges
Step-by-step explanation:
Number of relatives = 12
Number of years = 5
Since each relative gives gift to one another each year:
Then each relative hands out 11 gifts (person giving out the gift will not be counted) to the others, and others also do the same.
Therefore, yearly exchange :
(Number of relatives * number of gifts given out per person)
(12 × 11) = 132
Number of exchanges after 5 years :
(Number of yearly exchanges × number of years)
(132 × 5) = 660
The answer is For every 5 toy cars, there is 2 toy airplanes. Hopes this helps
