Annet is 6 years younger than her sister Mary. If their total age is 38 years, how old
is Mary?*
(options)

22 years
32 years
16 years

Step-by-step explanation:

Hello,

Let's note a Annet's age and b her sister's age.

Annet is 6 years younger than her sister, so we can write:

Their total age is 38 years, so we can write:

It comes

b - 6 + b = 38

<=> 2b - 6 = 38

add 6 to both parts of the equation

<=> 2b = 38 + 6 = 44

divide by 2

<=> b = 44/2 = 22

So, Mary's age is 22.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

22

Step-by-step explanation:

Total age = 38

Mary's age = x

Annet's age = x - 6

So , the equation is :

x + ( x - 6 ) = 38 and when you solve it you'll get the answer x as 22 and then you have to subtract it with 6 so that you can get the answer for Janet's age which is 16 so , 22 + 16 = 38

Hope this helps and pls mark as brainliest :)

4.08%

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for