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Ira Lisetskai [31]
2 years ago
15

An equation is shown below:

Mathematics
1 answer:
Vadim26 [7]2 years ago
4 0

Step-by-step explanation:

12x - 66 +15 = 3x +12

12x -3x = 66 -15+12

9x = 63

x = 63/9

x = 7

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s2008m [1.1K]

Based on the information, Christian would have $5525.5 of annuity.

<h3>How to calculate the annuity?</h3>

According to given information, the number of coffees per week is 3 then, per month is 3x4 = 12

For each coffee is $4.5. Then monthly expenditure for coffees is 12 x 4.5 = $54

Rate of interest r = 1.6% = 1.6/100 = 0.016 and for monthly compounding r = 0.016/12 = 0.00133

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FV = C x [ ( 1 + r )n-1 ] / ( r )

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