Answer:
A ≈ 615.75 cm squared
or 616cm squared when rounded off
Answer:
The cost of 1 doll = $ 7.5
and The Cost of 1 toy train = $ 5
Step-by-step explanation:
Let the price of 1 doll = $ x
The price of 1 toy train = $ y
Now, according to the question:
6 x + 2 y = $ 55
and 4 x + 7 y = $ 65
Solving the given system of equation,
From (1), we get
![x= \frac{55 - 2y}{6}](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B55%20-%202y%7D%7B6%7D)
![4 ({\frac{55 - 2y}{6}} ) + 7y = 65](https://tex.z-dn.net/?f=4%20%28%7B%5Cfrac%7B55%20-%202y%7D%7B6%7D%7D%20%29%20%20%2B%207y%20%3D%2065)
or, solving for y , we get
110y - 4y + 21 y = 195
or, 17 y = 85
⇒ y= 85/17 = 5
This implies : 6 x + 2 (5) =55
or, 6x = 55 - 10 = 45
or, x = 45/ 6 = 15/2
Hence, the cost of 1 doll = x = $ 7.5
and the Cost of 1 toy train = y = $ 5
Answer:
because it doesn't have an equal sign.
Step-by-step explanation:
I kept getting 900 i am sorry if that is incorrect