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Let [tex]\( x \)[/tex] be the price for [tex]\( 9 \, \text{kg} \)[/tex] of coffee.

[tex]\[
\frac{\text{RM} 36}{3 \, \text{kg}} = \frac{x}{9 \, \text{kg}}
\][/tex]

Solving for [tex]\( x \)[/tex]:

[tex]\[
x = \text{RM} 108
\][/tex]

Sagot :

GinnyAnsweridn
Sure, here's a detailed step-by-step solution to the problem:

1. Understand the Given Information:
- The price for 3 kg of coffee is RM 36.
- We need to find the price for 9 kg of coffee.

2. Set Up the Proportion:
- We know that RM 36 corresponds to 3 kg of coffee.
- Let [tex]\( x \)[/tex] be the price for 9 kg of coffee.

3. Calculate the Price per kg:
- To find the price per 1 kg of coffee, divide the total price by the weight given:
[tex]\[ \text{Price per 1 kg of coffee} = \frac{\text{RM 36}}{3 \text{ kg}} = \text{RM 12 per kg} \][/tex]

4. Calculate the Total Price for 9 kg:
- Since 1 kg of coffee costs RM 12, we can calculate the cost of 9 kg of coffee by multiplying the price per kg by 9:
[tex]\[ \text{Total price for 9 kg of coffee} = 12 \, \text{RM/kg} \times 9 \, \text{kg} = \text{RM 108} \][/tex]

Hence, the price for 9 kg of coffee is RM 108.
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