Susan have 9 books.
Explanation:
Given that Marge has 4 more than 2 times as many books as Susan.
Let x represents the number of books that Susan has.
The relationship is written as
To find: Number of books that Susan have.
The number of books that Susan have can be determined by solving the expression for x.
Thus, we have,
Subtracting 4 from both sides of the equation, we get,
Dividing both sides by 2, we get,
Therefore, Susan has 9 books.
Answer:
56 number of Nectarines are needed
Step-by-step explanation:
Let number of Fruit-pie be x and number of nectarines be y.
Since the fruit pie recipe calls for twice as many peaches as nectarines.
then we have,
It is also given that total of 168 pieces fruit for all pies.
⇒
Substitute x=2y in above equation to solve for y:
or
3y=168
Divide both sides by 3, we get
Simplify:
y = 56
Therefore, 56 nectarines are needed.