Answer:
The cost of 27 units of electricity will be Rs. 131.10
Step-by-step explanation:
Given that:
Cost of first 20 units = Rs. 80
Cost of per unit after 20 units = Rs. 7.30
Units consumed in a household = 27 units
Bill of first 20 will be Rs. 80 and 7 units will be charged on the rate of 7.30
Cost of 7 units = 7*7.30 = Rs. 51.10
Cost of 27 units = Rs. 80 + 51.10 = Rs. 131.10
Hence,
The cost of 27 units of electricity will be Rs. 131.10
Answer:
it should be 2 as your answer
Answer: A.
Step-by-step explanation:
Answer:
y=20,x=9
When doing problems like this it is important to always note: whatever you do to one side of the = sign you have to do to the other side.
Step-by-step explanation:
For this problem it helps that they already give you what y equals to so you can plug y in the top equation to figure out what x is. See attachment for step by step process
Given the polynomial of degree 4, this can be written as:
x^4-100
let
x^2=a
thus the expression can be written as:
a^2-100
this is a polynomial of degree 2 also known as quadratic equation.
Hence the answer is:
<span>A) Quadratic formula</span>