Answer: the length is 11 cm.
The width is 7 cm.
Step-by-step explanation:
Let L represent the length of the rectangular plastic box.
Let W represent the width of the rectangular plastic box.
The area of the rectangular top of the box is 77 square cm. This means that
LW = 77- - - - - - - ;- - - -1
The plastic box has a length 4 cm longer than its width. This means that
L = W + 4
Substituting L = W + 4 into equation 1, it becomes
(W + 4)W = 77
W² + 4W = 77
W² + 4W - 77 = 0
W² + 11W - 7W - 77 = 0
W(W + 11) - 7(W + 11) = 0
W - 7 = 0 or W + 11 = 0
W = 7 or W = - 11
Since the width cannot be negative, then W = 7cm
L = 77/7 = 11 cm
Answer:
The answer is: 4y(2x+y)
Step-by-step explanation:
8+-10=-2 you multiply and combine the variables and numbers.
You have sold 72, and your friend has sold 74. Meaning your friend has sold 2 more magazine subscriptions than you.
I hope this helps <span>24 = k * 6 </span><span>4 = k </span><span>y = kx </span><span>y = 4x </span><span>y = 4 * 5 </span><span>y = 20
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