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2 years ago

A company uses this formula to work out the cost, £A, of a taxi ride.

Mathematics

1 answer:

velikii [3]2 years ago

7 0

Answer:

£b = £1.68

A = £44.68

Step-by-step explanation:

Given:

A = 5 + 1.9m + b

Where,

A = total cost

m = number of miles travelled

£b = charge for booking online

£5 = fixed charge

A. Harry

A = £29.48

m = 12 miles

£b = ?

A = 5 + 1.9m + b

29.48 = 5 + 1.9(12) + b

29.48 = 5 + 22.8 + b

29.48 = 27.8 + b

29.48 - 27.8 = b

b = 1.68

£b = £1.68

b) If Sue books online and travels 20 miles, what will be

A = 5 + 1.9m + b

= 5 + 1.9(20) + 1.68

= 5 + 38 + 1.68

= 44.68

A = £44.68

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$m1*m2=-1$

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3 years ago

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Ierofanga [76]

Answer:

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Step-by-step explanation:

when writing scientific notation, there must be one number to the left of the decimal point.

To achieve this in this problem, you need to move the decimal point 3 times to the right.

because you are moving the point to the right, the exponent will be negative.

*rule of thumb: moving the decimal to the left will give you a positive exponent, moving to the right will give you a negative exponent*

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Answer:

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Step-by-step explanation:

Given

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Required

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Divide n³ by n to n²

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Split fraction

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From laws of indices;

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$Standard\ Form = {3 * n^2} * m^{-2}$

Multiply all together

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