I got the last answer.
Y = 2x - 2
Answer:
Step-by-step explanation:
In similar triangles, the corresponding sides are in same proportion.
Cross multiply,
4x*12 = 15*(3x + 1)
48x = 15*3x + 15*1
48x = 45x + 15
48x -45x = 15
3x = 15
x = 15/3
x = 5
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Let me know the website I used was Desmos graphing calculator
3rd one =104
((2×60)÷30)×(24+2)=104
A 50% increase is just taking the original amount and adding half of that towards the amount.
Example : 50% of 100 is 50 so a 50% increase to 100 would be 150
a formula for this would be X + (1/2×X) = Y
in your case we're working backwards with the known being 60
We can just plug in reasonable values for X until we get 60
50% of 40 is 20
40 + 20 = 60
so the original amount was 40
