a rectangular deck has a area of 320 ft squared. the length of the desk is 4 feet longer than the width. find the dimensions of the desk. Solve by completing the square.
1 answer:
Because l•w= area, area= 320, l=w+4 width • (width +4)= 320 Distribute the multiplication over addition and move all to the left side. w^2 +4w-320=0 (w-16)•(w+20)=0 yet, The product of two things is 0 if one is 0 or both are 0 so w-16=0 so w=16 and w+20=0 so w= -20 Now the width or length could not be negative so we discard the solution w=-20. Answer width= 16 inches length =16+4=20 Verify w•l=320 16•20=320✔️
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<em><u>Answer: 25 Plays Total. </u></em>
60% of 25 is 15
10% of 25 = 2.5
2.5x6=15
Hope This Helps.
Finding the equivalent multiplier , it is found that the function for the final price is:
P(x) = 0.68x.
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There is a holiday sale of 20% off the price of x, thus 0.8x is paid , as 1 - 0.2 = 0.8. Additionally, there is a coupon of 15% off, thus, 0.85 of 0.8x is paid. The equivalent multiplier is:
Thus, the function for the final price is:
A similar problem is given at brainly.com/question/16999193
Answer:
-4x+3>-5
or, -4x>-5-3
or, -4x>-8
or, -4x/-4<-8/-4
so, x<2