So 5a=cost of adults
3s=cost of students
a+s=1142
5a+3s=4326
a+s=1142
subtract s from both sdies
a=1142-s
subsitute 1142-s for a
5(1142-s)+3s=4326
5710-5s+3s=4326
5710-2s=4326
subtract 5710 from both swides
-2s=4326-5710
-2s=-1384
dividee both sides by 2
-s=-692
multiply -1
s=692
692 students
subsittue
a+692=1142
subtract 692
a=450
s=692
a=450
Y=-1/4x+8
First find the slope
Slope= y-y1/x-x1
So (6-7)/(8-4) = -1/4
Now take that slope and use one of the points and plug them into the point slope formula to solve for your y intercept.
Point slope formula: y=mx+b
So 7=-1/4(4)+b OR 6=-1/4(8)+b
Either way you’ll get b=8!
Put em together and you get: y=-1/4x+8
Ps you can double check your answer by plugging in one or both of the points into your equation to see if it works :)
Answer:He bought 9 cans.
Step-by-step explanation:
27divided by 3 is 9.
Answer:
y = -1/4x + 3
Step-by-step explanation:
Step 1: Write out known variables
m = -1/4
y = -1/4x + b
Step 2: Find <em>b</em>
2 = -1/4(4) + b
2 = -1 + b
b = 3
Step 3: Rewrite equation
y = -1/4x + 3
I attached the work/steps for my answer.
