Answer:
Pencil: $0.60 Rubber: $0.48
Step-by-step explanation:
Let the cost of a pencil be p and the cost of a rubber be r.
(Equation 1)
(Equation 2)
Divide both sides by 4:
Substitute this into Equation 1:
Multiply both sides by 4:
Divide both sides by 9:
Since r + p = 1.08,
Answer:
Fourth option:
y = 2x - 5
Step-by-step explanation:
Slope: (-5-3)/(0-4)
-8/-4
2
y-intercept: -5
y = 2x - 5
Answer:
$326.67
Step-by-step explanation:
Amount of Interest=7000(6%)(2)=$840
Monthly installment=7000+840/12=$326.67 (nearest hundredth)
Answer:
c
Step-by-step explanation:
x³ - y³ ← is a difference of cubes and factors as
x³ - y³ = (x - y)(x² + xy + y²)
Given
+ = - 1
Multiply through by xy to clear the fractions
x² + y² = - xy ← substitute into second factor of expansion
x³ - y³ = (x - y)(- xy + xy) = (x - y) × 0 = 0 → c