Answer:
[tex]57\ cal[/tex]
Step-by-step explanation:
The question in English
If a packet of biscuits contains 10 biscuits and weighs 95 g if 15 g of biscuits corresponding to 90 calories, how many calories does each biscuit have?
step 1
Find the weigh of one biscuit
[tex]\frac{95}{10}=9.5\frac{gram}{biscuit}[/tex]
step 2
By proportion
Find out how many calories are in each biscuit
[tex]\frac{90}{15}\frac{cal}{g} =\frac{x}{9.5}\frac{cal}{g}\\ \\x=9.5*90/15\\ \\x=57\ cal[/tex]
