Step-by-step explanation:
The following sequence is in AP
Suppose the first term is denoted by"a" and the common difference by"d"
a=3
d=4.5-3= 1.5
the nth term = a + (n-1)d
= 3+(n-1)1.5
=3+1.5n -1.5
=1.5+1.5n
Answer:
Step-by-step explanation:
Let his total money be x.
He spent (3/7)*x of his money.
He gave 1/4(x-3/7x) to his sister.
which is : (1/4)*(4/7)*x = (1/7)*x
Now,
How much money he have in the beginning =
(3/7)*x+(1/7)*x+120=x
(4/7)*x+120=x
120=x-(4/7)*x
120=(3/7)*x
x=120*7/3 [cross multiplication]
x=280.
So, Alex had $280 in the beginning.
The largest of the three angles is 84°.
Hope this helps! :)
slope is change in y over change in x
use 2 points from the table so -3,-21 and -6,-39
change in Y: -39 - -21 = -18
change in x = -6 - -3 = -3
slope = -18/-3 = 6
slope = 6
