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.
30 because it is yea and yea
Answer:
C
Step-by-step explanation:
-0.2(x-20)=44-x
Divide both sides by -0.2:
x-20=-220+5x
Subtract x from both sides:
-20=-220+4x
Add 220 to both sides:
200=4x
x=50, or answer choice C. Hope this helps!
3x + y = -3
Substitute y = x + 5 in the ‘y’ spot in the 3x + 7 = -3 equation
3x + y = -3
3x + x + 5 = -3
combine liked terms
4x + 5 = -3
-5 on both sides
4x = -8
/4 on both sides
x = -2
Answer:
x = -2
════════════════════
Answer:
↝
Solution:
────────────────────
If u evaluate it it will become
=5.996958256
════════════════════
Explanation:
#Carry on learning
