Pleaseeeeee help i don’t get thisssss
2 answers:
You might be interested in
First term [ a ] = 6.3
Common difference [ d ] = 8.8 - 6.3 = 2.5
Using general term formula,
78.8 = 6.3 + (n-1)*2.5
2.5*(n-1) = 72.5 [ Dividing both sides by 2.5 ]
n-1 = 29
n = 30
Hence, 78.8 is the 30th term in the arithmetic series.
Common difference [ d ] = 8.8 - 6.3 = 2.5
Using general term formula,
78.8 = 6.3 + (n-1)*2.5
2.5*(n-1) = 72.5 [ Dividing both sides by 2.5 ]
n-1 = 29
n = 30
Hence, 78.8 is the 30th term in the arithmetic series.
(1)
given =
( cross- multiply )
10j = 54 ( divide both sides by 10 )
j = =
← in simplest form
(9)
let h be the hours worked daily , then
3h = 20 =
( divide both sides by 3 )
h = ÷ 3
= ×
=
= 6
She worked 6 hours each day