the formula is a_{1}+(n-1) d
so a_{1} would be the first number in the sequence, which would be 13 in problem 9.
13+(n-1)d
then you put in n, which is 10 (it represents which number in the sequence you're looking for, for example 16 is the second number in the sequence)
13+(10-1)d
then you find the difference between each number, represented by d which in this case is 3
13+(10-1)3
13+(9)3
13+27=
40
Answer:
d
Step-by-step explanation:
Answer:
She spent 2 and a half hours doing extra work.
Answer:
la longitud del poste es ... creo que 60? No soy bueno con los medidores, pero espero que esto ayude.
Answer:
75
Step-by-step explanation:
Have a great day mark me branly