First you need to know some rules 2 numbers that are the same with coefficients divided : you differentiate those coeff
and multyplied :you sum up them
12x^8/3x^3= 4x^8-3=4x^5
20^2x=20^x*20^x
m^5*m^-7=m^5-7=m^-2
Answer: -0.25n-0.15
Step-by-step explanation:
simplify
0.5n+0.3-0.75n-0.45
Combine like terms
-0.25n-0.15
Answer:
12
Step-by-step explanation:
$50-6 (ticket to game) = 44 - $20 (the balance she wants to have left) = $24.
$24/2=12 (amount of hotdogs she can buy)
Answer:
Step-by-step explanation:
----------- (1)
-----------(2)
Adding equation (1) and (2)
Substitute y=-4 in equation (1) or (2)
Answer:
<A=50
Step-by-step explanation:
85+x+55+x+50=180
2x+190=180
2x=180-190
2x=-10
x=-5
A=x+55
A=-5+55
A=50
