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Mitch's age is five less than half of Lyle's age. Nine years ago, the difference in their ages was 21. How old are they?

 Mar 4, 2020

Best Answer 

 #1
avatar+22043 
+2

M = 1/2 L -5     (given)

(L-9)   - (M-9) = 21     sub in the 'given' for M

 

L-9  - (1/2L-5  -9) = 21

1/2L  -9 +5+9 = 21

1/2 L = 16

L=32

                  then    M = 1/2 L -5  =11 y/o

 Mar 4, 2020
 #1
avatar+22043 
+2
Best Answer

M = 1/2 L -5     (given)

(L-9)   - (M-9) = 21     sub in the 'given' for M

 

L-9  - (1/2L-5  -9) = 21

1/2L  -9 +5+9 = 21

1/2 L = 16

L=32

                  then    M = 1/2 L -5  =11 y/o

ElectricPavlov Mar 4, 2020

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