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Alex spent $25.82 for groceries this week, which is $3.20 less than what Alex spent last week. How much did Alex spend last week?​

User Shersh
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4 votes

Answer:

exampol.you spent for$ 29.2|

User Shamaseen
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Alex spend $29.02 last week.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

We have,

Alex spent $25.82 for groceries this week, which is $3.20 less than what Alex spent last week.

let she spend $x last week.

So, x - 3.2 = 25.82

x = 25.82+ 3.2

x = $29.02

Learn more about Unitary Method here:

User Artem Baranovskii
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