0.2(d-b)=0.3b+5-3+0.1d
you first distribute the 0.2 to the d and b in the parentheses, you'll then get
0.2d-0.2b=0.3b+5-3+0.1d
now you make sure that the b variables are with each other on the same side of the equal sign. so you subtract 0.3b from both sides to get
0.2d-0.5b=5-3+0.1d
now do the same thing with the d variables so subtract 0.1d from both sides to get
0.1d-0.5b=5-3
now you can subtract 5-3 which is easy to get
0.1d-0.5b=2
now you have to figure out what d and b equal. so i'll do b first. all you do is use the equation you have now and pretend that d is 0 so substitute the 0 in with the d variable to get
0.1(0)-0.5b=2
now you divide -0.5b from both sides to get
-0.5b/-0.5= b 2/-0.5= -4
so now you know b = -4
now you do sthe sane thing with b substitute with a 0 to get
0.1d-0.5(0)=2
then divide 0.1d from both sides to get
0.1d/0.1=b 2/0.1=20
now you know d = 20
( d=20, b=-4 )
Answer:
16j+5k
Associative property
Communitive Property (I think)
Step-by-step explanation:
(10j+5k)+6j =
(10j+6j)+5k =
16j+5k
Answer:
p : 3.4
Step-by-step explanation:
2.1-2*p=-4.7
2.1+4.7=2*p
2*p=6.8
p=6.8/2= 3.4
Answer:
x=12
Step-by-step explanation:
Answer:
4) 5
Step-by-step explanation:
a) f(-1) = 2^-1 = 1/2
g(-1) = 3*-1 + 4 = 1
g(x) > f(x)
b) f(4) = 2^4 = 16
g(4) = 3*4+4 = 16
g(x) = f(x)
c) f(2) = 2^2 = 4
g(2) = 3 * 2 + 4 = 10
g(x) > f(x)
d) f(5) = 2 ^ 5 = 32
g(5) = 3 * 5 + 4 = 19
f(x) > g(x) Correct answer