Answer:
Step-by-step explanation:
All we have to do is use the addition property of equality to isolate x.
Answer:
$814.13
Step-by-step explanation:
Recall that the simple interest formula is a=p(1+rt).
a= final amount (Unknown)
p=starting amount ($780)
r= interest rate (5.25= 0.0525%)
t=time in years (10 months =5/6 years)
Plug numbers into formula:
a=780(1+5.25*5/6)
Solve parenthesis first according to PEMDAS:
a=780(1.04375)
Multiply:
814.125
Round to nearest hundredth (cent):
$814.13
Answer:
Susan has suggested a correct method to calculate the amount of money
Step-by-step explanation:
Here we must check what each person is calculating. First, we consider Susan's method. She has suggested that we multiply the cost per soda, that is dollars/soda by the number of sodas required, we get the total cost.
Assuming that 18 sodas are required and each costs $0.20, the total cost according to Susan is $3.60.
John suggests we divide the cost of a 12 pack of soda by the number of sodas required. Considering a 12 pack of soda costs $12 and the same amount of sodas, 18, are required, we get that each soda costs $0.66.
Looking at these answers, we see that Susan has suggested a correct method to calculate the amount of money needed to buy a number of sodas. John has suggested the amount each person would have to contribute if everyone at the party was trying to buy a 12-pack of soda; regardless of whether more or less than a 12-pack is required.
Divide 45 by three because it is 3:4 of the cost then mutiply it by four so e entire cost would be 60.
