Answer:
Step-by-step explanation:
1. Make 1 2/7 an improper fraction = 9/7
2. Multiply 7 on both numerator and denominator for 2/3 to make 14/21, and multiply 3 for both numerator and denominator for 9/7 to make 27/21.
3. Add them together. 14/21+27/21=41/21.
4. (Optional) If the question is asking for mixed numbers, 41/21 = 1 20/21.
Answer:
6
ab-cd
Substitute the values in the equation
(4)(3)-(3)(2)
12-6=6
Answer:
53
Step-by-step explanation:
Take the mean of each row in the accidents reported column so for example 0-4 would be 0+4/2 = 2
Then times it by the frequency which in this case is 15:
2 x 15 = 30
Do this for each rows and then add it all up:
30 + 28 + 120 + 34 = 212
Then divide it by number of row which in this case is 4:
212/4 = 53