Answer:
12 in.
Step-by-step explanation:
The perimeter is calculated by adding all up the sides of a shape. In this case, the shape is a square, considering that all the sides are the same measurements. 3+3+3+3 can be simplified to 3x4. This gives you 12 in. as the perimeter.
0.13 cents
So basically u need to do 3.25÷25.
Answer:
85in tall
Step-by-step explanation:
Essentially, we are being asked to find the unit rate. We want to figure out how many dollars it costs to buy 1 yard of fabric.
$10 : 8 yards
---Divide both values by 8
$1.25 : 1 yard
Hope this helps!
Answer:
b. 610, 50
Step-by-step explanation:
The mean score is the sum of all scores divided by the number of tests.
So if you increase the grade on each test, the mean will increase.
The standard deviation is the square root of the sum of the power of 2 of all scores subtracted by the mean(that is, the distance between each score and the mean) and divided by the number of tests.
As you increase each score by 10, the mean will change by 10. However, the distance between each score and the mean will stay the same, which means that the standard deviations remains unchanged.
In this problem, we have that:
Mean = 600
Standard deviation = 50
Scores increased by 10
So
Mean = 610
Standard deviation = 50
So the correct answer is:
b. 610, 50