Answer:
Step-by-step explanation:
What are you looking for?
The answer will be 35 because it is a proportional side length
Answer:
STEP1:Equation at the end of step 1
2y3 - 8y
STEP2:
STEP3:Pulling out like terms
3.1 Pull out like factors :
2y3 - 8y = 2y • (y2 - 4)
Trying to factor as a Difference of Squares:
3.2 Factoring: y2 - 4
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 4 is the square of 2
Check : y2 is the square of y1
Factorization is : (y + 2) • (y - 2)
Final result :
2y • (y + 2) • (y - 2)
To find out, we solve the system of equations.
n + q = 52
n = -q + 52
Plug in -q + 52 for 'n' in the 2nd equation:
0.05(-q + 52) + 0.25q = 8
Distribute 0.05:
-0.05q + 2.6 + 0.25q = 8
Combine like terms:
0.2q + 2.6 = 8
Subtract 2.6 to both sides:
0.2q = 5.4
Divide 0.2 to both sides:
q = 27
Now plug this into any of the two equations to find 'n':
n + q = 52
n + 27 = 52
Subtract 27 to both sides:
n = 25
So Alexis had 27 quarters and 25 nickels.
Answer:
pq
Step-by-step explanation:
