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3 years ago

Please help! bad at word problems!

Mathematics

1 answer:

Alla [95]3 years ago

4 0

Answer:

$66.

Step-by-step explanation:

Inversely Proportional, so C = k/n where C = the cost per person, n is the number of people and k is a constant to be found:

Inserting the given values:

30 = k/44

So k = 30*44 = 1320 and the equation of variation is

C = 1320/n.

When 20 people are on the trip we have:

C = 1320/ 20

= $66.

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3 years ago

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4 years ago

How to find cp if loss and sp are given

velikii [3]

Step-by-step explanation:

$\tt{ \: H \: E \: Y \: \: T \: H \: E \: R\: E \: }$ !

When Loss and Selling price ( SP ) are given , Cost price ( CP ) can be found out using the following formulae :

✰ $\large{ \boxed{ \boxed{ \tt{CP = Loss + SP}}}}$

$\text{How \: did\: we \:get \:the \: formula : \: CP \: = Loss \: + \: SP} \:$ ?

We simply derived the formula from Loss = CP - SP.

First , Swap the sides of the equation :

⟶ $\text{CP - SP = Loss}$

Move SP to right hand side and change it's sign :

⟶ $\text{CP = Loss + SP}$

This is how , CP can be obtained when we are given loss and SP.

Hope I helped ! ♡

Have a wonderful day / night ! ツ

# $\underbrace{ \tt{C \: a \: r \: r \: y \: \: O \:n \: \: L \: e \: a \: r \: n \: i \: n \: g}}$ !!

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3 years ago