Answer:
y = -2x + 3
Step-by-step explanation:
2x + y = 9
y = -2x +9
thus gradient m = -2
y = mx + c
6 = (-2)(-1) + c
c = 3
therefore the eqn is y = -2x + 3
Answer:
500 millilitres
Step-by-step explanation:
Mass = Concentration x Volume
This rearranged gives:
Volume = Mass / Concentration
= 150 / 0.3 = 500 millilitres
Answer:
-9 and 2
Step-by-step explanation:
-9 x 2
Answer:
33
Step-by-step explanation:
Simplify the expression.
In 14 minutes the heart will beat 140 times becuase i did 140/10 and got 14
