Answer:
y = 2x - 1 is the required equation
Step-by-step explanation:
slope(m) = (3-7)/(2-4)
m = -4/(-2)
so, m = 2
Now,
y = mx + b
or, y = 2x + b
so, 3 = 2*2 + b
or, 3 = 4 + b
so, b = -1
equation would be y = 2x - 1
Answer:
-3 degrees at 8 pm.
Step-by-step explanation:
That would be 12 - 15
= -3 degrees.
Answer: 40
Step-by-step explanation:
138/x = 207/60
8280 = 207x
divide by 207
40 = x
Answer:
8 sheep total after buying 3 sheep
Step-by-step explanation:
At the beginning, the farmer had 114 kg of sheep, bu do not know how many.
let x = unknown number of sheep at the beginning.
mean weight = (total weight)/(x + 3) = 24 kg.
mean weight of 3 = 26 kg.
Total weight of the 3 sheep together = 3*26 = 78 kg.
mean weight = ( 114 kg + 78kg) / (x + 3) = 24 kg.
we can solve for x now.
192 / (x + 3 ) = 24
192/24 = x + 3
x + 3 = 8 sheep total after buying