Answer:
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Step-by-step explanation:
Answer:
12.)-5
13.)-16
14)-20
15)6
16)-13
17)1
18)-13
19)15
20)-10
Step-by-step explanation:
12.)-x=2+3
x=5/-1
so,x=-5
13.)-4=(-2×8+x)/8
-4×8=-16+x
-32+16=x
so,x=-16
14)(7×4+m)/4=2
28+m=8
so,m=-20
15)4n=34-10
n=24/4
so,n=6
16)-2a=22+4
a=26/-2
so,a=-13
17)a+3=2×2
a=4-3
so,a=1
18)-133+3=10x
-130=10x
so,x=-13
19)4+1=v/3
5*3=v
so,v=15
20)1=3+r/5
now,
Take LCM,
We get,
1=(3*5+r*1)/5
now,
by moving 5 into LHS
We get,
1*5=15+r
5=15+r
by moving 15 into left hand side,
We get ,
5-15=r
so,r=-10 because when we subtract smaller from bigger we have to take the sign of bigger.
We are given with the initial population and is asked for the final population after n years. in this case, we use the formula P(n) = Po* (1 + r)^n where r is the rate of growth. 1) P(n) = Po* (1 + r)^n P(n) = 8600* (1 + 0.03)^3 P(n) = 9397 people
2) P(n) = Po* (1 + r)^n P(n) = 1500* (1 + 0.02)^4 P(n) = 1624 deers
