Answer:
cost of egg = $0.6
cost of one piece of toast = $0.3
Step-by-step explanation:
In order to find the cost, first form equations from the given data.
Let, e = egg and t= toast
Equation 1: for 2 eggs and one piece of toast
2e + t = 1.50
t= 1.50 - 2e ----> eq(1)
Equation 2: for one egg and one piece of toast
e + t = 0.90
t = 0.90 -e ---->eq(2)
putting above value in eq (1)
(1)=> 2e + 0.90 -e = 1.50
e = 1.50 - 0.90
e= 0.6 put the value in eq (2)
(2)=> t= 0.90 - 0.6
t= 0.3
Therefore, one egg cost $0.6 and one piece of toast cost $0.3
Answer:
A single egg costs $0.60 AND
One piece of toast costs $0.30
Step-by-step explanation:
Let's assume that the cost of a single egg is X
And the cost of a toast as Y
Kendra charges $1.50 for one toast and 2 eggs
The equation above will be
2X + Y = 1.50_____ equation 1
And she also charges $0.90 for one egg and one piece of toast
The equation for the above statement will be
X + Y = 0.90_____equation 2
For equation 1, we make X the subject of the formula
X = 0.90 - Y
Now substitute for this in equation 1.
Remember that equation 1 is
2X + Y = 1.50
It will now be 2(0.90 - Y) + Y = 1.50
= 1.80 - 2Y + Y = 1.50
Y= 0.30
Therefore,the price of one toast is $0.30
And now for the price of an egg,we substitute Y = 0.30 in equation 2
X + Y = 0.90
X + 0.30 = 0.90
X = 0.60
Here the price of am egg is $0.60
