Answer: 2 mins and 40 second
Step-by-step explanation:
Let's say Ronnie is thinking of X.
If 2(x) = x+5, we would first distribute the 2.
2x = x+5
We would then need to isolate the variable. We would do so by getting all variables to one side. The easier choice would be to subtract x from both sides.
2x=x+5
-1x -1x
This becomes
x=5
Ronnie is thinking of the number five.
5•2=10 and 5+5=10.
d.30
Answer:
Solution given:
x.
f.
fx
13.
15.
195
14.
42
588
15.
x.
15x
16.
10.
160
17.
3.
51
. n=70+x.
=994+15x
we have
mean=sum/n
14.44=
14.44=
doing crisscrossed multiplication
(70+x)*14.44=994+15x
1010.8+14.44x=994+15x
15x-14.44x=1010.8-994
0.56x=16.8
x=16.8/0.56
x=30
Answer:
24
Step-by-step explanation:
6+8=14 14+10=24
Density = Mass / Volume = 2000/0.5
Density = 4000 Kg/m^3