If one rooster can wake up 10 hens, then how many hens can 3 roosters wake up?
1 answer:
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Answer:
41
Step-by-step explanation:
Given
(7 + 2 )(7 - 2
) ← expand factors using FOIL
= 7² - 2 + 2
- (2
)² ← collect like terms
= 49 - 8
= 41
Answer:
4 each of red and green binders.
Step-by-step explanation:
Given: Price of each red binder is $2.25.
Price of each green binder is $3.24.
Total Jackie paid is $21.96.
Lets assume the number of red binder bought be "x".
∴ Total amount paid for red binder=
⇒ Total amount paid for red binder=
Now, finding the amount paid for green binder.
As we know the total amount paid by Jackie is $21.96 and she bought same number for each binder.
Jackie paid for x number of green binder=
Next, we can write an equation on total amount paid for Green binder to find value of x.
∴
Solving the equation.
Adding both side by \$ 2.25x
⇒
⇒
cross multiplying both side.
⇒
∴ x= 4
Hence, Jackie bought 4 each of red and green binders as she bought same number of each binders.