Hi!
To solve this, let's divide
625/250 = 2.5
So is the pattern.. x/2.5 = x2/2.5 = x3/2.5...
We can test this theory by multiplying
100 x 2.5 = 250
Since 250 comes before 100 in the sequence then our theory is correct!
So to find the next numbers, divide:
40/2.5 = 16
16/2.5 = 6.4
6.4 = 2.56
The answer is C.
Hope this helps! :)
Answer:
2+2 is 4 minus 1 is 3 quick math
Step-by-step explanation:
x=3
Answer:
9765625
Step-by-step explanation:
There is a common ratio between consecutive terms , that is
r = 25 ÷ 5 = 125 ÷ 25 = 5
This indicates the sequence is geometric with n th term
= a₁
where a₁ is the first term and r the common ratio
Here a₁ = 5 and r = 5 , then
a₁₀ = 5 ×
= 5 × 1953125 = 9765625
3x + y = 3
7x + 2y = 1
First isolate one of the variables (x or y) in one of the equations.
Isolate "y" in the first equation(because it is the easiest to isolate) and substitute it into the second equation.
3x + y = 3 Subtract 3x on both sides
3x - 3x + y = 3 - 3x
y = 3 - 3x
7x + 2y = 1
7x + 2(3 - 3x) = 1 [since y = 3 - 3x, you can substitute (3-3x) for "y"]
Multiply/distribute 2 into (3 - 3x)
7x + (3(2) - 3x(2)) = 1
7x + 6 - 6x = 1
x + 6 = 1 Subtract 6 on both sides
x = -5
Now that you know "x", substitute it into one of the equations (I will do both)
3x + y = 3
3(-5) + y = 3 [since x = -5, you can plug in -5 for "x"]
-15 + y = 3 Add 15 on both sides
y = 18
7x + 2y = 1
7(-5) + 2y = 1
-35 + 2y = 1 Add 35 on both sides
2y = 36 Divide 2 on both sides
y = 18
x = -5, y = 18 or (-5, 18)
Answer:
$76.70 is the answer.
Step-by-step explanation:
18% of 65.00 is 11.70. I added 11.70 to $65.00, and got 76.70.