Once you combine it, you get 10w + 18
Answer:
Mr Blake's science class
Step-by-step explanation:
The standard deviation is a measure of variation.
It tells us how far each of the data set in the distribution are far from the mean of the distribution.
The average score of students in Mr. Blake's science class was 73 with a standard deviation of 11, while the average score of students in Mrs. Arnold's class was 75 with a standard deviation of 10.
Since 11>10, Mr Blake's science class is more variable than Mrs. Arnold's class.
Answer: 30 trees
Step-by-step explanation:
Elizabeth has 330 citrus trees and 180 palm trees
The largest number of trees that she can have in a row will base on the highest common factor between the two number of trees
330 = 2 × 3 × 5 × 11
180 = 2 × 2 × 3 × 3 × 5
HCF = 2 × 3 × 5
HCF = 30
The largest number of trees that she can have in a row is 30 trees.
Answer:
-2
Step-by-step explanation:
5[3x+4)]=-10
15x+20= -10
15x=-30
x= -2
Answer:
4 hrs
Step-by-step explanation:
half of Jim Rollers time is 1.5 hrs, and half of John Brushs time is 2.5 hrs. The two combined is 4 hrs. Therefore, the answer is four hours.
This is basically finding the average of two numbers, and you can use multiple different equations to find the same answer.
3/2 + 5/2 =4
(3+5)/2 =4
5-3=2, then 2/2=1, 5-1=4
