Answer:
Joe's done expressed sold 1211 Vanilla donuts.
Step-by-step explanation:
Given:
Total Money earned = 4378
Number of chocolate donuts sold = 978
Cost of each donuts = 2 dollars
We need to find the number of vanilla donuts sold.
Solution:
Let number of vanilla donuts sold be 'x'.
now we can say that;
Total Money earned is equal to sum of Number of chocolate donuts sold and number of vanilla donuts sold multiplied by Cost of each donuts.
framing in equation form we get;
[tex]2(x+978)=4378\\\\2x +2\times 978 =4378\\\\2x+1956=4378[/tex]
Subtracting both side by 1956 we get;
[tex]2x-+1956-1956=4378-1956\\\\2x= 2422[/tex]
Dividing both side by 2 we get;
[tex]\frac{2x}{2}=\frac{2422}{2}\\\\x = 1211[/tex]
Hence Joe's done expressed sold 1211 Vanilla donuts.
