Income of Rahim is $12,060.00 per month and that of Ami is ¢191,520.00 per annum. If the monthly expenditure of each of them is ¢10,960.00 per month find the ratio of their savings.
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--- Actual

--- Estimate

Explanation:

Given

Let

Rahim's savings

Ami's savings

Their income is:

Required

Ratio of their monthly savings

First, convert Rahim's income from USD to Ghana Cedis (¢)

Multiply by 5.76

Subtract their expenditure from the income, to get their monthly savings:

The ratio of their savings is:

Remove units and multiply by 10

Divide by 32 (their gcd)

---- this is the actual ratio of their savings

To get an estimate; divide by 18283

Approximate

yes

explanation:

in the problem you wrote said that the taxi charges $0.070 per mile(which would be 7 cents per mile), but then in your suggested equation you have it as $0.70 per mile (which is 70 cents per mile).

the latter seems more realistic, so i will assume that the taxi costs $5.00 and charges $0.70 per mile with tolls costing an additional $3.50. and it asks you to find how far you can travel on $36.50.

let x the number of miles traveled. since the taxi charges $0.70 per mile, multiplying this by the miles traveled (x) will yield the cost of the taxi ride as far as how far it took you. then adding this amount to the cost of the taxi ($5.00) and the additional cost for the tolls ($3.50) will give you the total cost of the taxi ride ($36.50)

that is,

            (0.70)x + 5.00 + 3.50 = 36.50

adding the like terms on the left-hand side of this equation, we arrive at the following:

            (0.70)x + 8.50 = 36.50

subtracting 8.50 from both sides of the equation, we get:

            (0.70)x = 28.00

to solve for x, divide both sides of the equation above by the coefficient of x (that being, 0.70):

            x = 40

thus, you can travel up to 40 miles on $36.50