Peter Mabel sold a total of 400 Oatmeal ($1.50) and Wheat ($2) breads during the Labor Day weekend. How many of each did Pete sell if total sales were $700?

If he sold x oatmeal, then he sold 400-x wheat.

1.5x + 2(400-x) = 700
x = 200

sure enough, 1.5(200) + 2(200) = 700

Let's solve this problem step by step.

Step 1: Let's assume that Peter sold x Oatmeal breads and y Wheat breads.

Step 2: The total number of breads sold is 400, so we can write the equation:
x + y = 400

Step 3: The price of each Oatmeal bread is $1.50, and Peter sold x Oatmeal breads, so the revenue from Oatmeal breads is 1.50x.

Step 4: The price of each Wheat bread is $2, and Peter sold y Wheat breads, so the revenue from Wheat breads is 2y.

Step 5: The total sales were $700, so we can write the equation:
1.50x + 2y = 700

Step 6: We now have a system of two equations:
x + y = 400
1.50x + 2y = 700

We can solve this system of equations using either substitution or elimination method.

Let's solve it using the elimination method:
Multiply both sides of the first equation by 2:
2(x + y) = 2(400)
2x + 2y = 800

Subtract the second equation from the modified first equation:
(2x + 2y) - (1.50x + 2y) = 800 - 700
0.50x = 100

Divide both sides of the equation by 0.50:
0.50x/0.50 = 100/0.50
x = 200

Now substitute the value of x in the first equation to find the value of y:
200 + y = 400
y = 400 - 200
y = 200

Therefore, Peter sold 200 Oatmeal breads and 200 Wheat breads during the Labor Day weekend.

To solve this problem, we can use a system of equations.

Let's assume that Peter sold x oatmeal breads and y wheat breads.

From the given information, we know that:
The price of oatmeal bread is $1.50, so the revenue from oatmeal breads is 1.50x.
The price of wheat bread is $2, so the revenue from wheat breads is 2y.

The total sales were $700, so the equation is:
1.50x + 2y = 700 ----(1)

We also know that Peter sold a total of 400 breads, so the equation is:
x + y = 400 ----(2)

We can now solve these equations simultaneously to find the values of x and y.

We can start by multiplying equation (2) by -1.50 to make the coefficients of x in both equations cancel each other:
-1.50(x + y) = -1.5(400)
-1.5x - 1.5y = -600 ----(3)

Now, we can add equations (1) and (3) to eliminate x:
(1.50x + 2y) + (-1.5x - 1.5y) = 700 - 600
0.5y = 100
y = 100 / 0.5
y = 200

Substituting the value of y into equation (2):
x + 200 = 400
x = 400 - 200
x = 200

Therefore, Peter sold 200 oatmeal breads (x) and 200 wheat breads (y).