Answer:
PE = 83 and Science = 71
Step-by-step explanation:
let P represent PE and S represent Science with P > S, then
P + S = 154 → (1)
P - S = 12 → (2)
Adding the 2 equations term by term eliminates S
2P = 166 ( divide both sides by 2 )
P = 83
Substitute P = 83 into (1)
83 + S = 154 ( subtract 83 from both sides )
S = 71
Hence PE mark = 83 and Science mark = 71
I put a step by step on the picture, I thought it would be easier than words. Hope this helps!
Answer:
(3x5)+(5x2)=25
Step-by-step explanation:
3x5=15 plus 5x2=10 15+10=25
Answer:
B
Step-by-step explanation:
Since C is included in the answers to represent that the line and be moved anywhere, you only need to find the slope.
divide the change in y by the change in x
(6-0) / (0+2) = 6/2 = 3
B can be orientated to read as y = 3x + C
its slope is 3
-1(1)=(2)-1 because you replace x with one since there is no number in front then you solve -1=-2 but make sure to multiply those four #'s
