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3 years ago

42.1x23.5 what the answer

Mathematics

2 answers:

Anastasy [175]3 years ago

6 0

Answer:989.35

42.1×23.5=989.35

I hope this is good enough:

igor_vitrenko [27]3 years ago

6 0

Answer:

989.35

Step-by-step explanation:

you multiply 42.1 and 23.5 by taking the decimals out (don't worry you'll be putting them back) and then multiplying:

421 * 235 = 98,935

you then replace the two decimal points (because there are two decimals your going to count two decimal points into the answer) hence the answer being:

989.35

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Step-by-step explanation:

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So order matters here, there for we use permutations .

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3 years ago

The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May it cost her $420 to drive 500 mi

djyliett [7]

Answer:

$C(d) = \frac{1}{5}d + 320$

Step-by-step explanation:

Given

$d \to miles$

$C \to cost$

So:

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$(d_2,C_2) = (620,444)$ --- June

Required

Express as a function

Start by calculating the slope (m)

$m = \frac{\triangle C}{\triangle d}$

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$m = \frac{24}{120}$

Simplify

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The equation is:

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$C(d) = \frac{1}{5}d - 100 +420$

Take LCM

$C(d) = \frac{1}{5}d + 320$

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