Answer:
7th term is -1
Step-by-step explanation:
Mathematically, we have the nth term of a geometric sequence as:
Tn = ar^(n-1)
where a is the first term
n is the number of terms
T4 = ar^3
64 = -4096 * r^3
r^3 = -64/4096
r^3 = -1/64
r^3 = (-1/4)^3
r = -1/4
The 7th term is:
T7 = ar^6
T7 = -4,096 * (-1/4)^6
T7 = -1
The 7th term is -1
Answer:
The Greatest Common Factor of
15
and
25
is
5
.
The factors of
15
are
3
and
5
(the number itself and 1 do not count).
The factor(s) of
25
is
5
. After all, it is a square number.
The only factor that is in common is
5
(again remember that 1 does not count here -although
1
is common,
5
is higher)
Hope I helped!
Step-by-step explanation:
Answer:
1/4 ; $28.25
Step-by-step explanation:
Given the following :
Cost of stationeries:
Pencil:$1.20
Eraser:$1
Ruler:$0.50
Total : $169.50
Let total Stationeries purchased = t
Fraction of pencils = 1/3t
Remainder = t - 1/3 = 2/3t
Fraction of eraser = 5/8 of remainder
Thus ;
Fraction of eraser = 5/8 * (2/3)t= 10/24 = (5/12)t
Rest were ruler ;
(2/3)t - (5/12)t= (8 - 5)/12
= 3 / 12 = 1/4t
Fraction of rulers = 1/4
Amount spent on erasers:
(5/12) of the total cost of stationery
(5/12) * 169.50 = $70.625
B.) How much more did she spend on erasers than rulers
Amount spent on rulers :
(1/4) * $169.50 = $42.375
Take the difference :
$(70.625 - 42.375) = $28.25
Hi, do you have to picture?