15, 10, 19, 17, 16, 12, 20, 22, 18, 35
Planting soil 2 plant height:
16, 17, 10, 12, 18, 17, 14, 15, 17, 23
A) Planting soil 1 growth percentage is approximately 14% more than planting soil 2 growth percentage.
B) Planting soil 2 growth percentage is approximately 14% more than planting soil 1 growth percentage.
C) Planting soil 1 growth percentage is approximately 50% more than planting soil 2 growth percentage.
D) Planting soil 2 growth percentage is approximately 50% more than planting soil 1 growth percentage.
Answer:
C
Step-by-step explanation:
First find the mean of each group. To do this we total the numbers and then divide by the number of measurements. There are 10 measurements for each.
Planting soil 1
15 + 10 + 19 + 17 + 16 + 12 + 20 + 22 + 18 + 35 = 184
184 / 10 = 18.4cm
18.4 / 5 cm = 368
368% growth
Planting soil 2
16 + 17 + 10 + 12 + 18 + 17 + 14 + 15 + 17 + 23 = 159
159 / 10 = 15.9
15.9 / 5 = 318
318% growth
The difference between the two plant percentage growths is 50%, with plant 1 being more than plant 2, so the answer is C.
Answer:
Each person will get .25 of a pizza
Step-by-step explanation:
Take the amount of pizza and divide by the number of people who want to share
1.25/5
.25
Each person will get .25 of a pizza
Answer:
.25 or 1/4
Step-by-step explanation:
You divide 1.25 and 5
Study the Problem
What is the cost of the wallpaper (in dollars per square foot)?
Organize the Facts
The wallpaper covers a rectangle 42 ft by 25.5 ft. It costs $771.12 for that area.
Make a Plan
To find dollars per square foot, we need to divide the dollar amount by the area in square feet. The area needs to be computed. It is the area of a rectangle, so can be found by multiplying length and width.
Plan: multiply length and width of the wall to find its area; divide the cost by that area to find dollars per square foot.
Execute the Plan
area = (42 ft)×(25.5 ft) = 1071 ft²
cost/area = $771.12/(1071 ft²) = $0.72/ft²
Examine the Results
The area is on the order of 40×25 = 1000 ft², and the cost is less than $1000, so the cost will be less than $1 per square foot. The answer is in the right ballpark. If we multiply it out, we should get the given cost:
... 0.72×42×25.5 = 771.12 . . . . agrees with given cost.
The cost of the wallpaper is $0.72 per square foot.