It could be a linear equation in two variables. A single linear equation in two variables cannot be solved.
Let x be the length and y be the width.x=2yPerimeter = 2 x length + 2 x width = 2x+2y = 2(2y)+2y = 4y+2y=6y6y = 60y=10width is 10Length is 2y = 20Area = length x width = 20 x 10 = 200 square feet
The GCF is 4.
15y
50x and 60y
It could be a linear equation in two variables. A single linear equation in two variables cannot be solved.
30+6(21^0.5) ~ 57.49545 30-6(21^0.5) ~ 2.50455 X*Y=144 X=144/Y X+Y=60 X=60-Y 144/y = 60 - Y 144 = 60Y - Y^2 Y^2-60Y+144=0 Quadratic equation gives you: 30+6(21^0.5) ~57.49545 30-6(21^0.5) ~2.50455
x+2y = 30 => x= 30-2y x2+y2 =900 (30-2y)2+y2 = 900 (30-2y)(30-2y)+y2 = 900 900-60y-60y+4y2+y2 = 900 5y2-120y = 0 y(5y-120) = 0 y = 0 or y= 24 Substitute the value of y into the original equations to find the value of x: Therefore: x = -18 and y = 24 Check: -18+48 = 30 and (-18)2+242 = 900
4y + 3y - 67yThat's not a question that needs an answer, and it's not a problem that needs a solution.It's just a number ... one that depends on the value of 'y'.If you're confused, overwhelmed, threatened, or uncomfortable seeing the numberwritten that way, it can be simplified a bit, and written in a less imposing way:-60yThat's exactly the same number, just written better.
Let x be the length and y be the width.x=2yPerimeter = 2 x length + 2 x width = 2x+2y = 2(2y)+2y = 4y+2y=6y6y = 60y=10width is 10Length is 2y = 20Area = length x width = 20 x 10 = 200 square feet
U suppose overeating is most commonamong adults (16-60y old) It hasn't been for long that there is plenty of food available. In the past people had to eat and fatten up for worst er times. This instinct could have saved you in the past. If cave people just ate what they needed, many would die during winter months when food was not always available. We still often like fat and sweet things since they have higher calorie counts then sour and bitter tasting things. Under eating is more common among elder people (60+ y old) They just loose their sense of taste making them feel less hungry. That is why older people often use more salt.
Say x = total gallons of solution at 60%Say y = gallons of 70% solutionx=70+y gallonsThen .60x = .70y + .1(70)substituting for x gives.60(70) + .60y = .70y + .1(70) or42 + .6y = .7y + 7 or42-7 = .1y gives y = 350 gals and x = 420 gals total solutionThe answer is 350 gallons
The usual form of the question is "what was the age at which each became President?" (ignoring any distinction between those who were elected or those who took over at the death or resignation of their predecessor). Including ALL Presidents, and counting those later elected "in their own right" increases the age a bit.The median age overall (whether elected or not) is 54 years, 11 months.Most by far were in their 50s (twenty-four), esp. 50-55 (fifteen).The range of those elected has been from 43 (Kennedy) to 69 (Reagan); Theodore Roosevelt became President at 42 (on the death of McKinley). No others under 45 have been elected, and only two were over 65 when elected (W.H. Harrison at 68, and Reagan), so we could say "mostly between 45 and 65".