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JulijaS [17]
2 years ago
13

6. An ice cream costs 15 more than a cold drink. If the cost of

Mathematics
2 answers:
Debora [2.8K]2 years ago
8 0

Answer:

The price of a cold drink is 10 dollars.

Step-by-step explanation:

We can use proportion.

\frac{5 \:  ice \: creams}{125 \: dollars}  =  \frac{1 \: ice \: cream}{x}  \\  \\  \frac{5x}{5}  =  \frac{125}{5}  \\  \\ x = 25

So we found out that one ice-cream costs $25.00.

The statement said, "An ice cream costs 15 more than a cold drink"

In other words, A cold drink costs 15 dollars less than an ice cream.

So we would subtract.

25 - 15 = 10

So a cold drink costs $10.00.

Lorico [155]2 years ago
5 0
10.00 dollars is the answer
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We have,

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The coefficient of x in (i) and (ii) are 1 and \dfrac{1}{5} respectively.

To eliminate the variable x by adding the equations, we need the coefficients of x as the additive inverse of each other, i.e, a and -a So, a+(-a)=0.

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