1) 5×4=20mm
2)3×2=6mm
The area=20-6
=14mm
<span>$2.35
Working
Let p represent the cost of pretzels and L the cost of a lemonade.
From the second paragraph,
2p+ L= 5.75
From the equation above, the cost of a pretzel p can be expressed as:
2p= 5.75 - L
p= 5.75/2 - l/2
The cost of two lemonades exceeds that of a pretzel by 0.25:
2 L= 5.75/2 -L/2+0.25
Solving this gives:
L=1.05
Then replace the value of L in </span><span>p= 5.75/2 - L/2
</span><span>This gives the value of a pretzel.
</span>
It would go back to the same price because if it jumped up 60% and then back down 60%, since it is the same amount, it would be like you didn't even increase the price, unlike if it jumped 65% and then down 60%.
The standard formula is y= mx + b
your equation is 4x + 3y = -21 so first lets get the y variable by itself and remove the x variable by canceling it out, meaning we are going to subtract
4x + 3y = -21
-4x -4x
3y = -4x - 21 and now we are going to get the y by itself by dividing by 3
÷3 ÷3 ÷3
y = 1 1/3x -7 that is your answer i hope this helps
