If we assume that Lisa is x years old, then Richard will be (x + 6)years
In 5 years time
Lisa = x +5 years
Richard = x +11 years
sum will be 2x + 16 years
4 years ago
Lisa = x-4 years
Richard = x + 2
Sum will be 2x - 2
Therefore;
2(2x-2) = 2x +16
4x -4 = 2x +16
2x = 20
x = 10
Thus, the present age of Lisa is 10 years and that of Richard is 16 years
Answer:
w is undefined, no solutions.
Step-by-step explanation:
7w - 6 = 3(w + 4) + 4w
7w - 6 = 3w + 12 + 4w
7w - 6 = 7w + 12
-6 = 12
w is undefined, no solutions.
Answer:
Step-by-step explanation:
Answer:
They are called vertical angles but are also known as "Vertically Opposite Angles"
Step-by-step explanation:
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