Answer:
240+30x
Step-by-step explanation:
240+30x because you multiply 30 x 8 and get 240 plus 30 x X and get 30x
Answer:
31
Step-by-step explanation:
because if you subtract 39 from 41 that gives you the answer on how much if a difference there is
Answer:
(a) 3d=81
(b) 27
Step-by-step explanation:
every day, kojo write 3 pages
number of days he has written his story= d days
therefore number of pages he has written= 3d
from the final sentence,
3d= 81
<h3>(a) the equation to describe the situation: </h3><h3>3d= 81</h3>
(b) number of days kojo has been writing his story
3d= 81
dividing through by d
3d/3= 81/3
d = 27
<h3>therefore number of days = 27</h3>
Half life means only half of matter is left, which means half is decayed/radiated.
Formula for half life is
t/2 = [(elapsed time)*(log2)]/[log(beginning amount/ending amount)]
1. t/2 = [(10)*(log2)]/[log(100/76.1)] = 25.378 minutes.
t/2 = [10 * 0.301]/[log 1.314] = [3.01]/[0.1186] = 25.378
2. 53.12 = [(T)*(log2)]/[log(15/4)], on solving we get, T = 101.29 days
53.12 = [T * 0.301]/[log 3.75] = [0.301 * T]/[0.574],
T = [53.12 * 0.574]/[0.301] = [30.49]/[0.301] = 101.29<span />
The change in temperature would be negative.
Explanation: -10 - (-2) = (-8)
