Answer:
16
Step-by-step explanation:
1st group = 30% or .3 as a decimal
.3 * 40 = 12
2nd group = ate 7
Third group = 1/8 or .125 as a decimal
.125 * 20 = 5
12 + 7 + 5 = 24
40 -24 = 16
If I am not wrong it should be 5 units but still please give me a heart
Answer:
9.3
Step-by-step explanation:
Answer:
![\rm Numbers = 4 \ and \ -3.](https://tex.z-dn.net/?f=%20%5Crm%20Numbers%20%3D%204%20%5C%20and%20%5C%20-3.)
Step-by-step explanation:
Given :-
The sum of two numbers is 1 .
The product of the nos . is 12 .
And we need to find out the numbers. So let us take ,
First number be x
Second number be 1-x .
According to first condition :-
![\rm\implies 1st \ number * 2nd \ number= -12\\\\\rm\implies x(1-x)=-12\\\\\rm\implies x - x^2=-12\\\\\rm\implies x^2-x-12=0\\\\\rm\implies x^2-4x+3x-12=0\\\\\rm\implies x(x-4)+3(x-4)=0\\\\\rm\implies (x-4)(x+3)=0\\\\\rm\implies\boxed{\red{\rm x = 4 , -3 }}](https://tex.z-dn.net/?f=%5Crm%5Cimplies%201st%20%5C%20number%20%2A%202nd%20%5C%20number%3D%20-12%5C%5C%5C%5C%5Crm%5Cimplies%20x%281-x%29%3D-12%5C%5C%5C%5C%5Crm%5Cimplies%20x%20-%20x%5E2%3D-12%5C%5C%5C%5C%5Crm%5Cimplies%20x%5E2-x-12%3D0%5C%5C%5C%5C%5Crm%5Cimplies%20x%5E2-4x%2B3x-12%3D0%5C%5C%5C%5C%5Crm%5Cimplies%20x%28x-4%29%2B3%28x-4%29%3D0%5C%5C%5C%5C%5Crm%5Cimplies%20%28x-4%29%28x%2B3%29%3D0%5C%5C%5C%5C%5Crm%5Cimplies%5Cboxed%7B%5Cred%7B%5Crm%20x%20%3D%204%20%2C%20-3%20%7D%7D)
Hence the numbers are 4 and -3