Question

26. Cheryl paid $35.20 for a strawberry shortcake and 1 doughnut .Ria paid $50.80 for a strawberry shortcake and 10 doughnuts. How much does a strawberry shortcake cost ?​

Answer 1

-The correct answer should be 33.47

Basically what I did was subtract the 35.20$ with the 50.80 knowing that the result would give me the prices of 9 doughnuts and I got 15.60 them knowing that that 15.60$ is the price for 9 doughnuts I divided by 9 and I got 1.73$ them I subtract that 1.73$ with 35.20$ that is the price of the strawberry cake and one doughnut and got the final answer would should be 33.47$ if I’m not wrong.

Hope this help you!

Answer 2

$24.8

Explanation:

`let\ strarvberry\ shortcate\ is\ x.`

`doughnuts:y.`

`\left \{ {{x+4y=35.2} \atop {x+10y=5018}} \right.`

`\fbox{$2$}-0:6y=15:6`

`y=2.6`
`\left\{equation\right\}`

∴
`x=35.2-4*2.6`

`=24.8.`

∴
`A\ strawberry\ shortcake\ cost` $
`24.8`

I hope this helps you

:)