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Define x :
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Let the width be x.
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Find Area of the walkway :
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Area = 30x + 30x + 20x + 20x + 4x²
Area = 100x + 4x²
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Find cost of the walkway in term of x:
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1m² = $10
100x + 4x² = 10(4x² + 100x)
(100x + 4x²)m = $(40x² + 1000x)
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Find Width of the walkway :
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The budget is $6000
40x² + 1000x = 6000
40x² + 1000x - 6000 = 0
x² + 25x -150 = 0 //Divide by 40 through
(x - 5)(x + 30) = 0 //Factorise
x = 5 or x = -30 (Rejected, width cannot be negative)
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Answer: The width can be 5m wide.
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- One number is six more than a second number.
- four times the first is 10 less than 6 times the second.⠀⠀⠀⠀
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In questions given,One number is six more than a second number.
if second number is a
first number is a+6.
and,
four times the first is 10 less than 6 times the second.
So,
4×(a+6)=6a-10
we have to solve this.
we,get our second number =a=17.
So,
first number =a+6=17+6=23
Jami ate 8 skittles and Sarah ate 16 of the skittles together they ate a combined total of 24
We can use the compound interest formula
F=P(1+i)^n
where
F=Future value of investment to be found
P=present value of investment ($1000)
i=interest per period (1/4 year)=0.04/4=0.01
n=number of periods (3 years * 4 quarters = 12)
Substitute or "Plug in" values, so to speak,
F=1000*(1+0.01)^12
use a calculator to do the sum
=1126.83 (to the nearest cent, and use the proper rounding rules)
Answer:
there is no table. Sorry!
Step-by-step explanation:
