Answer:
pen = $1.20, pencil = $0.50
Step-by-step explanation:
let x = pen
let y = pencil
create system of equations:
3x + 6y = 6.60 [can be simplified to be x + 2y = 2.20]
5x + 8y = 10.00
substitution method:
x = 2.2 - 2y
5(2.2 - 2y) + 8y = 10
11 - 10y + 8y = 10
-2y = -1
y = 1/2
solve for 'x':
3x + 6(1/2) = 6.6
3x + 3 = 6.6
3x = 3.6
x = 1.2
Answer:
m∠=6, ,m∠=+20,m∠=40+3
the larger the angle, the larger the side
B. The equation is 4x = -48. Ben’s point total is -12.
13!=13×12×11×10×9×8×7×6×5×4×3×2×1
=6,227,020,800