Answer:
d
Step-by-step explanation:
40% = 40/100
40/100 X = 8
X = 800/40 = 20
X% of 40 = 20/100*40 = 8
Y=-X-3
X+Y=4
You'll want to get X or Y by itself, which in this question it already is.
After that, use substitution (Plug -X-3 in place of Y in X+Y=4)
Equation should look like X+(-X-3)=4
Solve that equation
X+(-X-3)=4
X+(-X) cancels eachother out, leaving you with (-3)=4
Add 3 to both sides of (-3)=4, leaving you with 0=7
0 Can't equal 7, so this equation has no solutions
An = a1 * r^(n-1)
a1 = first term = -5
r = common ratio = -4
so ur formula is : an = -5 * -4^(n-1) <==
Answer: -180
work: 0-60-60-60
Answer:
9 9/10
Step-by-step explanation:
i dont know what to put but u just remove the decimal and put a 10
