01:54:20
The sum of two positive integers, a and b. is at least 30. The difference of the two integers is at least 10. If b is the greater
integer, which system of inequalities could represent the values of a and b?
O a + b 2 30 bz a + 10
O a+b 230 bsa - 10
O a + b 530b2a + 10
O a + b 530 bsa - 10
Next
Submit
Save and in
Nox
Save and Exit
Subent
Markthandrum

answer: i think it's a

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

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.