Answer:
The Commutative Law of Addition.
Step-by-step explanation:
Basically, this law says we can swap numbers over and still get the same number when we add. This has demonstrated exactly that.
Hope this helped!
Answer:
He should mix 25 liters of the 30% solution, and 35 liters of 60% solution.
Step-by-step explanation:
Answer:
a. 1 inch = 3 feet
b. 1 inch
Step-by-step explanation:
In the figure attached the drawing of the bench is shown correctly.
a.
The drawing shows that the width of the bench is 2 inches. To get the scale we need to divide actual width by drawing width, in mathematical terms:
scale = 6 feet/2 inches = 3 feet/inch
b.
If actual height is 3 ft and every inch represents 3 feet, then, the height of the scale drawing is 1 inch
Answer:
Yes . The requirement of a normal distribution are satisfied.
Step-by-step explanation
The points of the data in the normal quantile plot lie close to a straight line.
The two angles here are supplementary angles, meaning that there sum is 180
Step 1: Set 146 plus -39 + x equal to 180
146 + (-39) + x = 180
146 - 39 + x = 180
Step 2: On the left side of the equation combine like terms
146 and -39 need to be combined, which will give you...
107
New equation:
107 + x = 180
Step 3: Isolate x by subtracting 107 to both sides
(107 -107) + x = 180 - 107
x = 73
Hope this helped!