She should use a computer to select 30 students at random then ask which ones play chess. The other options could produce more skewed results.
So first you find 10% which is 34.5
Then you multiply 10% by 4 to get 40% which is = 138
Answer: -5x-8y=-5
Step-by-step explanation:
add right sides of equation and even them with result of adding right sides of equation
4x-4y-9x-4y=-2-3
-5x-8y=-5
100 kg becouse 1000 grams is egual 1 kg
