Please help solve and create the equation.
1 answer:
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Answer:
Rate=9.05%
Step-by-step explanation:
Let P represent the Principal ,t the time = 8 years and r be the rate of interest.
It is given money doubles in 8 years so A=2P.
The compound interest is given by the formula :
Substituting the values we have:
Dividing both sides by P :
1.0905-1=r
r=0.09050
r=9.05%
351 children and 308 adults swam at the public pool.
Step-by-step explanation:
Let,
Children = x
Adults = y
Price per children = $1.75
Price per adult = $2.00
According to given statement;
x+y=659 Eqn 1
1.75x+2y=1230.25 Eqn 2
351 children and 308 adults swam at the public pool.
Keywords: Linear equations, Division
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