Answer: 187
Step-by-step explanation:
negative cancels negative so that will turn to positive. (-) x (-) = +
100- (-87)
=
100 + 87
= 187
Answer:
-8
Step-by-step explanation:
substitute
x=4
into -3x+2(y-1):
x=3
-3x4+2x(3-1)
-12+2x(3-1)
-12+2x2
-12+4
= -8
Step-by-step explanation:
It is given that,
Total length of a board is 65 inches
It is sawed into two pieces such that one piece is 7 inches shorter than twice the length of the other piece.
Let x is the length of other piece and y is the length of first piece such that,
y = 2x-7 ....(1)
Also,
x+y = 65 .....(2)
Put the value of y from equation (1) to equation (2) such that,
x+2x-7 = 65
3x=65+7
3x=72
x = 24 inches
Put the value of x in equation (1)
y = 2(24)-7
y = 41 inches
So, the length of first piece is 41 inches while the length of other piece is 24 inches.
Y=2/3x+1 is the equation as the intercept is (0,1) and gradient is 2/3
It is the change over the original number.
5901-5169=732
732 over 5901 =
= .1240 or 12.4%
