To find the how many mg of sodium in 1% divide 2500 by 100, then multiply that number by the percentage you want to find (in this case 4) to get your answer. 2500÷100=25 25×4=100 so in the can of iced tea it contains 100mg of sodium
Make each equation equal to each other, then solve for x. -x+2=4x+7 -x-4x=7-2 -5x=5 X=-1 Sub x into one if the y formulas to find y Y=4x+7 Y=4(-1)+7 Y=-4+7 Y=3 See my picture for how to graph the points. Hope this helps!