I think you forgot to add the other part of the question
Answer:
£30 and £24
Step-by-step explanation:
sum the parts of the ratio, 5 + 4 = 9 parts
Divide the amount by 9 to find the value of one part of the ratio
£54 ÷ 9 = £6 , then
5 parts = 5 × £6 = £30
4 parts = 4 × £6 = £24
Sam gets £30
Bethan gets £24
√26+13 ² = (x+7)²
26x + 13 = X² +14X + 49
26X +13 - X² -14X - 49 = 0
12X - X² - 36 = 0
-(X²-12X+36) = 0
-(X-6)² = 0
(X-6)² = 0
X-6 = 0
X= 6
So,
If you do some simple division, you will find how much each cm costs in each cake.
20cm cake = 67.5 cents/cm
25cm cake = 93.75 cents/cm
Assuming that you cannot order fractions of cakes, the best deal would be to order 5 of the 20cm cakes.
Cost = 13.50 * 5 = $67.50
You will have to pay $67.50 for the cakes if you want the best deal.
So combine like terms and solve for x
2x=-22
X=-11
