To solve for y we have to use the INVERSE OPERATION of addition which is subtraction Lets do it:-
y + 17 = 21
y = ?
21 - 17 = y
21 - 17 = 4
y = 4
CHECK OUR WORK:-
y + 17 = 21
y = 4
4 + 17 = ?
4 +17 = 21
We were RIGHT!!!!
So, y = 4.
Hope i helped ya!! xD
Answer:
-6m^2 *n^2
Step-by-step explanation:
formula: (m^x)/(m^y)= m^(x-y)
apply formula for (4m^2)/(2m^-3)
=(4m^(2--3)/(2)
=4m^5/2
divide 4/2
=2m^5
next part 3n^5/(-mn)^3
3n^5/(-mn)^3
expand
=3n^5/ (-m^3*n^3)
=3n^(5-3)/ -m^3
=3n^2/ -m^3
both parts:
(2m^5* 3n^2)/ -m^3
= -(2m^5* 3n^2)/ m^3
= -(2m^(5-3)* 3n^2)/ 1
= -(2m^2* 3n^2)
= -(6m^2*n^2)
= -6m^2 *n^2
Answer:
equation 'b': y = -3/4x + 5
equation 't': y = 4/3x - 2
Step-by-step explanation:
parallel lines must have the same slope
the slope of perpendicular lines must be opposite and reciprocal
C because it's x means weeks so $5 a week is 5x and she already has 127 so 5x+127.
Answer:
B the line goes down so its a negative gradient
and you do rise which is -1 over run which is 3
