no it is not i don’t think that adds up correctly if u do the problem
33 represents how many people that were seen on the street at the time when writing the equation
ANSWER
250g of Roquefort cheese will cost
£2.8
EXPLANATION
If 150g of roquefort cheese cost £1.68, we can write the ratio,
![150: 1.68](https://tex.z-dn.net/?f=150%3A%201.68)
Let 250g of Roquefort cheese cost £x.
Then we can again write the ratio,
![250:x](https://tex.z-dn.net/?f=250%3Ax)
We can equate the two ratios and solve for x.
![150: 1.68 = 250:x](https://tex.z-dn.net/?f=150%3A%201.68%20%3D%20250%3Ax)
We rewrite the ratios as fractions to obtain,
![\frac{150}{1.68} = \frac{250}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B150%7D%7B1.68%7D%20%20%3D%20%20%5Cfrac%7B250%7D%7Bx%7D%20)
We cross multiply to get,
![150x = 250 \times 1.68](https://tex.z-dn.net/?f=150x%20%3D%20%20250%20%5Ctimes%201.68)
This implies that,
![150x = 420](https://tex.z-dn.net/?f=150x%20%3D%20420)
Divide both sides by 150 to get,
![x = \frac{420}{150}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B420%7D%7B150%7D%20)
![x = 2.8](https://tex.z-dn.net/?f=x%20%3D%202.8)
Therefore 250g of Roquefort cheese will cost
£2.8