Answer:
1/x^3
Step-by-step explanation:
foil method
Answer:
1 sandal= $7
1 flip flop =$2.5
Step-by-step explanation:
say one sandal costs x and one flip flop costs y
3 x+y=23.50
4x+2y=33
solve using simultaneous equationsto find the values of x and y
Hello!
Add up the costs of everything Kyle purchased and the tax, and then subtract that from $10.
4.95 + 2.30 + 1.10 + 0.65 = 9
10 - 9 = 1
Kyle should have received $1 change.
The formula of arithmetic sequence is
an = a₁ + d(n - 1)
Then we need to find the formula to determine n. I reverse the equation so the 'n' will be on the left side.
a₁ + d(n - 1) = an
Then I move all the terms on the left one by one to the right side except n
a₁ + d(n - 1) = an
d(n - 1) = an - a₁
n - 1 = (an - a₁)/d
n = 1 + (an - a₁)/d
This is the formula to solve n
n = 1 + (an - a₁)/d
