a
10.95x + 2.50, but for eight books so 10.95 x 8 + 2.50 = 90.10
b
12.50x + 4.50, but for six books so 12.50 x 6 + 4.50 = 79.50
c
To do this, we can set them both equal to each other and if x is a whole number of books, then they do pay the same amount. If x is a decimal, then they don't pay the same amount.
10.95x + 2.50 = 12.50x + 4.50
2.50 - 4.50 = 12.50x - 10.95x
-2 = 1.55x
This can never be a whole number, so therefore members and non-members can never pay the same amount for an order of x books.
D is the answer because it says each and that’s a key word to understand that it’s multiplying
The numbers are: 2n and (2n+2)
we can suggest this equation:
4(2n)=2(2n+2)-12
We compute this equation:
8n=4n+4-12
8n-4n=-8
4n=-8
n=-8/4
n=-2
we compute the numbers:
2n=2(-2)=-4
2n+2=-4+2=-2
answer: the numbers are -4 and -2.
Answer:
18
Step-by-step explanation:
<em>First, use the equation for geometric mean; an=a1r^n-1</em>
*where is an is the number at an n term, r is the ratio and a1 is the first number of the sequence.*
12 = a1 r^5
27 = a1r^7
From the equations above,
a1 = 128/81
r = 3/2
Therefore, the 7th term is:
an = (128/81) (3/2)^6
an = 18
hope this helps :)
So i think its $4.35.
Step-by-step explanation:
I did addition to find out this answer my calculations seem to be correct.
$3.85 + 50 cents = 4 dollars and 35 cents
