0.5
340 / 20 = 17 -------- 3 / 4 = 0.75
4z + 3 = 6 + 2zSubtract 2z from each side of the equation:2z + 3 = 6Subtract 3 from each side:2z = 3Divide each side by 2:z = 3/2 = 1.5
5x + 7 = 4subtract 7 from both sides5x = -3divide both sides by 5x = -3/5
The 'answer' is the number that 'x' has to be in order to make the statement true.18x + 3 = 12xSubtract 3 from each side of the equation:18x = 12x - 3Subtract 12x from each side:6x = -3Divide each side by 6 :x = - 1/2
4x + 1 = 4Subtract 1 from both sides:4x = 3Divide both sides by 4x = 3/4 or .75
-1
Subtract 6x from each side: 2x + 4 = 7Subtract 4 from each side: 2x = 3Divide each side by 2: x = 1.5
225/75 = 3/1225/75Divide both top and bottom by 25:9/3Divide both top and bottom by 3:3/1225/75 in lowest terms is 3.
(2X/3) = 1multiply through by 33[(2X/3) = 1]2X = 3divide both sides integers by 2(2/2)X = 3/2X = 3/2========check in original equation2(3/2)/3 = 1(6/2)/3 = 1 ( or just cancel 2 in numerator and denominator )3/3 = 11 = 1=====checks
12
3x = 2y + 3Isolate y2y = 3x - 3Divide everything by 2 to get y aloney = 3/2x - 3/2Therefore the slope is 3/2 the y intercept is (0, -3/2) and the function form is y = 3/2x - 3/2 .
Young's Rule AnswerYoung's ruleIs a dosage calculation rule that converts adult dosing requirements for children.12 is added to the child's AGE, the sum is divided by the child's age, the adult dose is then divide the adult dose by the figure obtained.For example:6mg adult dose requirement.12 + child's age (say 6) = 1818 divided by 6 = 3Divide the adult dose by the figure obtained: 6/3 = 2mg or 1/3 the adult dose.Dave CI believe the final Function would be A/((x+12)/x)Where A= Adult Dose and X= agei don't beieve this is a rational function though because there is 2 variables