Answer:
Step-by-step explanation:
The formula for a geometric sequence is where is the th term of the sequence, is the first term, and is the common ratio.
Since each term is being multiplied by 3, this is our common ratio.
Therefore, our geometric sequence formula is
Answer:
22.5
Step-by-step explanation:
you have to do opposite bedmass to isolate the variable. the opposite of multiplying is division.
<u>(X+2)2</u> <u>=49</u>
2 2
Then do addition as subtraction.
X+2= 24.5
-2 -2
X= 22.5
A) d + q = 27
B) .10d + .25q = 4.35
Multiplying equation A by -.1
-.1d -.1q = -2.7 then adding it to equation B
.1 d + .25q = 4.35 equals
.15q = 1.65
The number of quarters = 11
putting 11 quarters into equation A
d + 11 = 27
dimes = 16
2.7 gallons.
Since the tank is already 4/5 full, only 1/5 is needed to fill it completely. As 13.5 gallons represent 5/5 (the full tank), you can take 13.5 divided by 5 to find 1/5.
Answer:
-16
Step-by-step explanation:
Represent the number by n.
Then:
8(n + 18) = 16
Performing the indicated multiplication, we get:
8n + 144 = 16
Subtracting 144 from both sides results in 8n = -128.
Dividing both sides by 8: n = -128/8 = -16
The number was -16.