X + y = 400
8x + 5y = 2750
-5x - 5y = -2000
8x + 5y = 2750
3x = 750
250 adult tickets
150 children tickets
Work shown above! Answer to both is A
8.5cm · 250,000 = 2,125,000cm
1m = 100cm therefore 1cm = 0.01m
2,125,000cm = 2,125,000 · 0.01 = 21,250m
1km = 1,000m therefore 1m = 0.001km
21,250m = 21,250 · 0.001km = 21.25km
Answer: 21,250m = 21,25km
Y=12
x=6
The triangle is a 30-60-90 triangle!
1000/7 = <span>142.857142857
Because this is not an even number we take "142", then times it by 7 teachers.
142*7= 994
1000 - 994 = 6 Pencils left</span>
