Answer:
n = nickels, q = quarters
Equation 1: n+q=30
Equation 2: 0.05n+0.25q = 3.30
Step-by-step explanation:
From equation 1, n = 30-q
Substitute in Equation 2:
0.05(30-q) + 0.25q = 3.30
1.5 - 0.05q + 0.25q = 3.30
0.2q = 1.8
q = 9
Substitute in new equation:
n = 30-9
n = 21
It is important to note a nickel is worth 5 cents and a quarter is 25 cents. This helps us build the equations.
Answer:
4 pi
Step-by-step explanation:
diameter = 2r
4 =2r
r =2
area = pi × (r)^2
= pi × 2^2
= 4 pi
Given the differential equation
The solution is as follows:
The answer is: " 6.4 blocks " .
________________________________________________________
3.2 blocks (one way), PLUS: 3.2 blocks the other way:
3.2 + 3.2 = 6.4 blocks .
or: (3.2) * 2 = 6.4 blocks .
________________________________________________
The answer is: " 6.4 blocks " .
________________________________________________
Answer:
answer would be the new area wil be 1/2 of the old area
Step-by-step explanation:
I'm pretty sure it's right hope this helps
