<span>Try to substitute w = 36 in your formula D=4*w+30</span>
Answer:
y = 7
Step-by-step explanation:
Solve for y:
7/y = 1
Take the reciprocal of both sides:
y/7 = 1
Multiply both sides by 7:
Answer: y = 7
We estimate that 25/75 = 1/3 of the fish in the pond are marked.
So an estimate would be 30 / 1/3 = 30*3
= 90 answer
Is it subtract 228? if so then 3-5 equals -2. -2-8 equals -10. -10-228 equals -238

5x = 2 + 6y
Divide both sides by 5
x = 6/5y + 2/5
Input in the other equation.
2.4 = .3(6/5y + 2/5) + .4y
2.4 = .36y + .12 + .4y
2.4 = .76y + .12
Subtract .12 from both sides.
2.28 = .76y
Divide both sides by .76
3 = y
x = 6/5(3) + 2/5
x = 18/5 + 2/5
x = 20/5 = 4
(4, 3)