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Answer:
y = 400x - 1200
Step-by-step explanation:
considering the linear equation y = mx + c
where y denotes number of items
x denotes item price
we have y = 2000 and x = $8 so we have now
2000 = m(8) + c ...... 1
now we have
y = 400 and x = $4
400 = m(4) + c .....2
from equation 1 and 2 we have
subtracting 2 from 1
1600 = 4m
m = 400
solving for c value
400 = 4m + c
400 = 4*400 + c
c = -1200
y = 400x - 1200
The original equation we have is : <span>−x − 2y = −10
We need to isolate the x, which means that we need to get x alone on one side of the equation preferably in a positive form.
So, going back to the original expression:
</span><span>−x − 2y = −10
To make x positive, we will add x to both sides of the equation, thus, we get:
-2y = -10 + x
The next step is to eliminate the -10 from beside the x. To do this we will add 10 to both sides of the equation. When doing this we get:
x = -2y + 10
Based on this, the correct choice is A : -2y + 10</span>
If he makes $8 per hour while babysitting, then if he works 3 hours - then he’d get $24 for babysitting.
He still has to make $176.
He can work 18 hours, if he uses up 3 hours babysitting, he has 15 hours left.
15 hours times $15 = 225 (too much)
12 hours times $15 = $180 ( he saves three hours)
He has to do 12 hours of life guarding to meet his goal - he will have three spare hours.
Sorry if I’m wrong, I think I’m right tho
Greater than.
yards are a larger unit of measurement, so to convert it there are more millimeters to count the same amount of space.
