Answer:
9
Step-by-step explanation:
according to the condition it is possible to make up a system of two equations (if to suppose 'l' - the larger number and the 's' - is the smaller one):
1. 'two numbers have a sum of 7' means s+l=7;
2. 'When the smaller number is subtracted from twice the larger number, the result is 20' means 2*l-s=20.
3. the system of two equations is:
![\left \{ {{s+l=7} \atop {2l-s=20}} \right. \ => \left \{ {{s=-2} \atop {l=9}} \right.](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7Bs%2Bl%3D7%7D%20%5Catop%20%7B2l-s%3D20%7D%7D%20%5Cright.%20%20%5C%20%3D%3E%20%5Cleft%20%5C%7B%20%7B%7Bs%3D-2%7D%20%5Catop%20%7Bl%3D9%7D%7D%20%5Cright.)
4. the larger number is 9.
Answer:
45 , 135
Step-by-step explanation:
As we know the property of interior angle if there are two parallel lines i.e The sum of two angle is 180.
Let the First angle be x then other angle 3x
So
x + 3x= 180 [ By the interior property the sum of two angle is 180]
4x=180
![x=\ \frac{180}{4} \\x=45](https://tex.z-dn.net/?f=x%3D%5C%20%5Cfrac%7B180%7D%7B4%7D%20%5C%5Cx%3D45)
Therefore Other angle is 3*45= 135
It adds 3 each time so the nth term is 3n
Minus 3 from 2 to get 0th term
So 3n-1 substitute 50 for n
150-1 is 149
Answer:
hi
Step-by-step explanation:
u need help