According to the number of cups, 564 people can be invited to the party.
Step-by-step explanation:
This is a simple question of cross multiplication
DATA:
1. Total number of cups of yogurt is 423 cups
2. 1 serving = [tex]\frac{3}{4}[/tex] th of a cup
3. Each guest gets [tex]\frac{3}{4}[/tex] of a cup or 1 serving
4. Find out how many guests can be invited to the party,
Cups : People
[tex]\frac{3}{4}[/tex] : 1
423 : p
5. Cross multiply
[tex]\frac{3}{4}[/tex] p = 423 x 1
3p = 423 x 4
p = [tex]\frac{1692}{3}[/tex]
p = 564
Therefore, according to the number of cups, 564 people can be invited to the party.
Key word: Multiplication
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