Let us assume that the age of Janet's sister is = x
Then the age of Janet = x + 5
Now we also know that their combined age is equal to 51 years. Then we can write the equation as
x + (x + 5) = 51
2x + 5 = 51
2x = 51 -5
2x = 46
x = 46/2
= 23
So the age of Janet = x + 5
= 23 + 5
= 28 years
So the age of Janet's sister is 23 and Janet's age is 28
Answer:

Step-by-step explanation:
A pentagon's angle all add up to 540


The answer would be 1 over 10 (A) because when you multiply two fractions, you multiply the top and bottom so in this case, 1 x 1 is 1 and 2 x 5 is 10 which gives you the answer A.
Post a specific question about the conic section. Your best bet is to search You Tube for video clips about the conic section.
Answer:
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Step-by-step explanation: