Answer:
x=1, y=4
Step-by-step explanation:
x+y=5 - (1)
y=3x + 1 (2)
Sub (2) into (1)
x + (3x +1)=5
4x=5-1
x=4 ÷4
=1
Sub x=1 into (2)
y=3(1)+1
= 4
Answer:
22.75x + 13.50 = 150
Step-by-step explanation:
Let x represent the number of music lessons taken. Then the cost for x music lessons for a member is 20x+150 and the cost for x music lessons for a non-member is 35x. The break-even point is when these two quantities are equal, so solve:
35x=20x+150
<span>Perimeter =2(L + W)
</span>
<span>Perimeter / 2 = (L + W)
W = ( </span><span>Perimeter / 2 ) - L
</span>
