Answer:
(a) Y = 129.3x (b) It is an estimate as it may not be a true reflection of a student's height
Step-by-step explanation:
(a) Estimate of the mean height is the sum of the heights of all the students divided by the total number of students.
The question however needs more information for its estimation as 129.3cm is representative and may be the mean height but it was not stated.
However, assuming it is the mean height,
Let the total number of students be x
while Y is the sum of all individual student heights
Mathematically, mean = Y/x
Therefore 129.3 = Y/ x
implying that Y = 129.3x
(b) It is an estimate because computation of the mean gives an average which may not be an exact value. For example, the mean here is 129.3 whereas there will be many heights greater than that and some lesser than that and obviously, there may be no student with height of 129.3 hence it is an estimate.
Answer:
B)13 pints
Step-by-step explanation:
SO first we find the unit rate
We know that in 90 minutes (hour and a half), the water leaked 6 pints form 2;30 to 4
Now So we can divide to find unit rate
6/90=1/15
So 1 pint for every 15 minutes
And now we want to know the amount it takes from 2:30 to 6:30 which is 4 hours
40 hours is 240 minutes
SO we can divide now
240/15=16
SO 16 pints leaked but the question asked for remaining water in container
So 29-16 is 13
So B)13
You got it wrong again it is c. you can see this because it is the only one that has two negative numbers like the expression.
The area of the figure created by Verona is 96.56 cm²
<h3>
Area</h3>
Area is the amount of space occupied by a two dimensional object.
The area of the circle = (1/4) * π * 4² = 12.56 cm²
The area of the square = 8 cm * 8 cm = 64 cm²
Area of the triangle = (1/2) * 8 cm * (17 - 8 - 4) = 20 cm²
Area of the figure created by Verona = 12.56 + 64 + 20 = 96.56 cm²
The area of the figure created by Verona is 96.56 cm²
Find out more on area at: brainly.com/question/25292087
Answer:
Kim is 3, Tom is 12
Step-by-step explanation:
4x + x = 15
combine like terms
5x = 15
divide both sides by five
x = 3
