18-15=3
percent of change= amount of change/original amount
=3/15
=0.2
=20% 20% is your answer!!!!
If it takes 5 builders hours to build a wall, it will take 2 builders hours to build an identical wall
The time taken for 5 builders to build the wall = hours
The time take for 5 builders to build the wall = 3.5 hours
Time taken for 1 builder to build an identical wall =
5 x (Time taken for 5 builders to build the wall)
Time taken for 1 builder to build the wall = 5 x 3.5
Time taken for 1 builder to build the wall = 17.5 hours
Time taken for 2 builders to build an identical wall = (Time taken for 1 builder)/2
Time taken for 2 builders to build an identical wall = 17.5/2
Time taken for 2 builders to build an identical wall = 8.75 hours
Time taken for 2 builders to build an identical wall = hours
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<span>3(1)+1 equals 4. Hope it helped?
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First we need to calculate the monthly payment to repay the loan using the formula of the present value of an annuity ordinary which is
Pv=pmt [(1-(1+r/k)^(-n))÷(r/k)]
PV the amount of the loan 4250
PMT monthly payment?
R interest rate 0.1325
K compounded monthly 12
N time 24 months
Solve the formula for PMT to get
PMT=pv÷ [(1-(1+r/k)^(-n))÷(r/k)]
PMT=4,250÷((1−(1+0.1325÷12)^(−24))÷(0.1325÷12))=202.55
Now to find the total finance charge use the formula of
Total finance charge=monthly payment×number of months-the amount of the loan
Total finance charge=
202.55×24−4,250=611.2
So the answer is 611.2
Hope it helps!
Answer:
Fourth option: x=1±√47
Step-by-step explanation:
This is a quadratic equation, then we must equal to zero: Subtracting both sides of the equation x², 5x, and 39:
Subtracting like terms:
Applying the quadratic formula: