Answer:
8
Step-by-step explanation:
b ÷ 9 when b = 72
b ÷ 9 <== substitute 72 for b, and solve
72 ÷ 9 = 8
Hope this helps!
Answer:answer will vary.
Step-by-step explanation:
Your teacher will display a graph of all the students’ sample proportions of heads.
The following is an example of a sampling distribution of sample proportion of head samples from 0.25 to 0.60
Answer:
a=28, b=-15
Step-by-step explanation:
![Method\ by\ linear\ combinaisons\\\left\{\begin{array}{ccc|c|c|}2a+5b&=&-19&-1&3\\3a+5b&=&9&1&-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}a&=&28\\5b&=&-75\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}a&=&28\\b&=&-15\\\end{array}\right.\\](https://tex.z-dn.net/?f=Method%5C%20by%5C%20linear%5C%20combinaisons%5C%5C%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bccc%7Cc%7Cc%7C%7D2a%2B5b%26%3D%26-19%26-1%263%5C%5C3a%2B5b%26%3D%269%261%26-2%5C%5C%5Cend%7Barray%7D%5Cright.%5C%5C%5C%5C%5C%5C%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bccc%7Da%26%3D%2628%5C%5C5b%26%3D%26-75%5C%5C%5Cend%7Barray%7D%5Cright.%5C%5C%5C%5C%5C%5C%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bccc%7Da%26%3D%2628%5C%5Cb%26%3D%26-15%5C%5C%5Cend%7Barray%7D%5Cright.%5C%5C)
Answer:
james walked for 45 mins at a rate of 4 mph and run fir 30 min at a rate of 10 mph how many miles have james gone
I DONT KNOW THE ANSWER
Answer:
40
Step-by-step explanation:
40% = 16
1% = 16 ÷ 40 = 0.4
100% = 0.4 x 100 = 40