lily and Rosie are sister the sum of their ages is 19 and the positive difference of their ages 9 set up a system of equations involving Lindsay's age, L, and roses age, R, assuming the lily is the older child solve the system to find their ages
Answers
L+R=19 and L-R=9 are the equations that are constrained through their ages and Rosie's age are 9 while Lindsay's is 14.
How to form an equation?
Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
In other words, an equation is a set of variables that are constrained through a situation or case.
Age of Rosie = R
Age of Lindsay's = L
Given that,
The sum of their ages is 19
L + R = 19
And,
The difference in their ages 9
L - R = 9
By adding both
2L = 28
L = 14
And,
R = 14 - 9 = 5
Hence "L+R=19 and L-R=9 are the equations that are constrained through their ages and Rosie's age is 9 while Lindsay's is 14".
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L-R=9
2L=28
L=14
(14)+R=19
R=5
L=14
R=5
Check:
(14)+(5)=19
(14)-(5)=9
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4x/50 = 2/x take 4x and multiply it by the denominator in the other fraction it = 4x^2 do the same for the 2 &50 you get 100 now you have 4x^2=100 take the 4 divide it on both sides so 4/4=0 and 4/100=25 now you have
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Step-by-step explanation:
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= 69,017,409
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