Answer:
1 Adult ticket=$35
1 Children ticket=$20
Step-by-step explanation:
21C+15A=945
6C+6A=330
we find adult tickets first
42C+30A=1890
42C+42A=2310
12A=420
A=35
we will find children ticket next
42c+30a=1890
30c+30a=1650
12c=240
C=20
credits to Michael for the secondary part
X(x-2) = 15 where x = the unknown number
If you test all the answers in that equation, both x values in answer A yield 15, so the answer is A
Answer:
D) Molecules move from areas of high concentration to areas of low concentration.
Explanation:
To get the most benefit from exercise with the least amount of risk; Moderate intensity with higher frequency is advised.
<h3>Risk and Benefit factors of Exercise</h3>
A couple of exercising methods can be emulated which include;
- Exercising at a high intensity such as sprinting or running.
- Exercising at a moderate intensity such as brisk walking, swimming or cycling.
- Exercising at a low intensity.
However, among the highlighted techniques above, it is advised to exercise at moderate intensity but with higher frequency.
Read more on exercise;
brainly.com/question/1997619