Hey!
390 square in. ]
Hope this helps!
~Nadia~
Variation are of 2 types: Direct variation that states 'if x increases, y increases'. And inverse variation which states ' if x increases, y decreases and y increases x increases'.
1. The amount of fuel used on a trip increases as the size of the car increases and as the distance traveled increases. = Direct variation
2. As the number of people helping mow a lawn increases, the time it takes to mow the lawn decreases = Inverse variation
3. The cost of having a house painted increases as the size of the house increases. = Direct variation
A. multiply the first equation by 7 and the bottom by six
4x-6y=10 *7
5x+7y=-2 *6
28x-42y=70
30x+42y=-12
add together to cancel out the y's