Answer:
200 kg
Step-by-step explanation:
since 1 lb = 0.45 kg all you do is 90 ÷ 0.45
that'll get you 200
200 kg is how much Dane Danny weighs
Your factors are (x+7)(x-5)(x+3)
multiply the first 2 to get (x^2 + 2x - 35)(x+3)
Now multiply in the 3rd one
x^3 + 2x^2 - 35x + 3x^2 + 6x - 105 now combine like terms
x^3 + 5x^2 -29x - 105 or A
Answer:
y=4x-28
Step-by-step explanation:
slope is 4
y-4=4(x-8)
y-4=4x-32
y=4x-32+4
y=4x-28
the slopes of parallel lines are equal
The two equations for the set up are:
x+y=23 where x is the number of dimes and y is the number of nickles
10x+5y=185
Now you solve by elimination and substitution.
Multiply your first equation by -5 and add the two equations together
-5x-5y=-115
+10x+5y=185
-------------------
5x=70
x=14
Substitute that into your original equation:
14+y=23
y=9
So you have 14 dimes and 9 nickles.
Hope this helps
