First no. = x
Second no. = y
Equation Formation
4 x = 2 y.................equation (i)
x + y = 10...............equation (ii)
y = 2 x
x +2 x = 10
3 x = 10
x = 3 1/3
y = 10 - 3 1/3
y = 6 2/3
Answer = 3 1/3 , 6 2/3
420 calories
If 2 inches equal 140 calories, what does 6 equal to?
140*2 divided by 2
It does not represent y as a function of x because x would have been alone on one side of the equation.
The cheap answer is, you simply "grab the denominator of one and multiply it times the other's top and bottom", so let's do so,
<span>You can apply a rule of three.
If you travel a distance of 45 miles in one hour (equivalent to 60 minutes), then how many minutes (x) will it take 1 mile?
45 miles → 60 min
1 mile → x
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Simplifying the fraction, dividing the numerator and denominator by 15
x=(60/15)/(45/15) min→x=4/3 min =1.333333333 min
approximately 1.33 min
Answer:
It will take 4/3 min or 1.33 min to travel 1 mile</span>