A shop has 15% sale. Originally a computer cost £275. How much does the computer cost in the sale?
2 answers:
Answer:
= 233.75
Step-by-step explanation:
To find the discount, we multiply the original price by the percent off
discount = 275* .15
= 41.25
To get the sale price, take the original price and subtract the discount
sale price = 275-41.25
= 233.75
15%×£275=£41.25
£275-£41.25=£233.75
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The volume would be 0.9 x 4.2
This means it is 90% smaller
Don't forget to round the nearest tenth place. That's the first decimal, so you answer should only have 2 digits.
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1) Multiply both sides by x²
![25 {x}^{2} \: = \: 4](https://tex.z-dn.net/?f=25%20%7Bx%7D%5E%7B2%7D%20%5C%3A%20%3D%20%5C%3A%204)
2) Divide both sides by 25
![{x}^{2} \: = \: \frac{4}{25}](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%5C%3A%20%3D%20%5C%3A%20%5Cfrac%7B4%7D%7B25%7D%20)
3) Square root both sides
![x \: = \: \frac{2}{5}](https://tex.z-dn.net/?f=x%20%5C%3A%20%3D%20%5C%3A%20%5Cfrac%7B2%7D%7B5%7D%20)
Viola!