Answer:
3×2 + 3×-b
Step-by-step explanation:
![3(2-b)\\= 3\times 2 + 3\times (-b)\\\\= 6 -3b](https://tex.z-dn.net/?f=3%282-b%29%5C%5C%3D%203%5Ctimes%202%20%2B%203%5Ctimes%20%28-b%29%5C%5C%5C%5C%3D%206%20-3b)
15r means that she burns 15 calories per min, for as many mins as she ran. EG: if she ran for 10 min, then she burned 150 cals. The other one I'm not so sure.
Answer:
84
Step-by-step explanation:
68 + 100 = 168
168/2 = 84
<span>Given:
visited museum didn't visit museum Total
visited zoo 9 14 23
didn't visit zoo 5 2 7
Total 14 16 30
Simply look at the table and check the number that corresponds to visitors who visited the museum but did not visit the zoo. The number is 5.
Divide it by the total number of people surveyed. Total is 30.
Probability visited the museum but did not visit the zoo = 5/30 = 0.16666 or 16.67%</span>
Answer:
y=318(1-0.5)^x
Step-by-step explanation:
x represents the amount of years and y is the ending price