Xavier is half as old as Jessica. The sum of their ages is 63. How old is Jessica? (
2 answers:
Answer:
31.5
Step-by-step explanation:
Answer:
let their age be x and y
x=y.......1st equation
<u> </u><u> </u><u> </u><u> </u>2
now,
product of their age
x+y=63
<u>y</u><u> </u>+y=63 (putting the value of x=y/2)
2
<u>3</u><u>y</u><u> </u>=126
y=<u>1</u><u>2</u><u>6</u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>3
y=42
hence,
age of jessica is y =42.
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