(5x²+4)–(5+5x³)
25x+4–5+125x
150x–1
Answer:
Step-by-step explanation:
x-y=14
x-1/3y=1/10
-y=14-x
y=-14+x
take out the factors
x-10/30y=3/30
30x-10y=3
substitute
30x-10(-14+x)=3
30x+140-10x=3-140
20x/20=-137/20
x=-6.85
y=-14+(-6.85)
y=-20.85
Answer:
$0.125 , so 12.5 cents per pencil
Step-by-step explanation:

You can double check this by doing
, making sure it equals 3.
Answer:
1) They are similar
2) 45 ft
Step-by-step explanation:
1) similar because both triangles have congruent interior angles
2) 75/35 = AB/21
AB = 45 ft
Do you know how to solve this??