You would do 3/4 of 20.
20 / 4 = 15
15 pens have black ink.
Answer:
A
Step-by-step explanation:
C 35+5x=90
5x=90-35
x=55/5
x=11
Hope this helped
Answer:
x = 10 cm
Step-by-step explanation:
(3x + 2) + (3x + 2) + (4x - 5) + (4x - 5) = 134 cm
combine like terms:
14x - 6 = 134
add 6 to each side of the equation:
14x = 140
divide both sides by 14:
x = 10
