Hope these help:
#9
a-4 divided by 5 = 12
5*12 is 60
60+4 is 64
60 (final answer for a)
#10
n+3 divided by 8 = -4
8*(-4) = -32
-32 + 3 = -35
-32 (final answer for n)
#11
6+z divided by 10 = -2
-2 * 10 = -20
-20=6=-26
-20 (final answer for z)
btw, can't see diagram
Answer:
if positive: x=-4
if negative: x=0
Step-by-step explanation:
confused on the last 1 if its negative or positive.
if positive
6(x+1)-5x=8+2(x+1)
distribute outside of parenthesis
6x + 6 - 5x = 8 + 2x + 2
combine like terms
1x + 6 = 10 + 2x
move x all to one side
6 = 10 + 1x
move 10 to the other side
-4 = x
if negative
6(x+1)-5x=8+2(x-1)
distribute outside of parenthesis
6x + 6 - 5x = 8 + 2x - 2
combine like terms
1x + 6 = 6 + 2x
move x to one side
6 = 6 + x
move 6
0=x
Answer:
74 days
Step-by-step explanation:
The proportion left after d days is ...
p = (1/2)^(d/100)
When that proportion is 60%, we have ...
.60 = .50^(d/100)
log(.60) = (d/100)log(.50) . . . . . take logarithms
100·log(.60)/log(.50) = d ≈ 73.697 ≈ 74 . . . days
Answer:
Step-by-step explanation:
5y-7y=-2y=-2(3)=-6
2(x - 4) + 7(x + 4)
(2x - 2 • 4) + (7x + 7 • 4)
9x + 20