Answer:
40x-17
Step-by-step explanation:
The house is x
<span>make a proportion: </span>
<span>x/55=15/25 </span>
<span>cross multiply </span>
<span>25x=55*15 </span>
<span>25x=825 </span>
<span>divide </span>
<span>x=33</span>
Answer:
It will take 15.029 years for element X to reach mass of 260 grams
Step-by-step explanation:
The half life period of radioactive element X is 26 years
The initial mass of radioactive element X is 260 grams
Elapsed time = half life * log (beginning amount /ending amount)/log 2
Substituting the given values, we get
Elapsed time = 26 * log (390/260)/log 2
= 15.209 years
X(7x+3)=0
x=0
or
7x=-3
x=-3/7
so,
(0,0) or (-3/7,0)
Answer:
5(3x - 4)
Step-by-step explanation:
5(3x - 4)
use the distributive property
15x - 20
so its correct
