A student was investigating how many students in their class share a car ride to school.The table shows the results.
If 26 students travel by car, and some student travel together, answer the following.
(a) What is the missing frequency?
(b) What is the mean number of students in each car?
Number of students in one car Number of cars
1 n
2 7
3 3
Answers
2x7 = 14
+
3x3 =9
=
23 students. Therefore there were 3 cars with only 1 student riding in each car.
The mean number of students in each car is 2. Because:
mean for 3 cars = 1
mean for 7 cars = 2
mean for 3 cars = 3
Add it all up and divide by 3 means yields 2.
Related Questions
Solve P = 2w + 2l for l.
Solve the following linear equation.6(x + 2) = 30 x
Which statement about the given equation is NOT true?3x + 4y = 12 a. It is in slope-intercept form with a positive slope of 4/3. b. It is an example of a linear equation. c. It has two variables and has coefficients of 3 and 4. d. It represents a line which, when graphed, doesn't pass through the origin.
For f(x)=2x+1 and g(x)=x^2-7 find (f•g)(x)
-x + 6y = 26
Elimination
Answers
5x+6y=50
-1(-x+6y=26) =x-6y=-26
Cancel out the 6y's add the rest
6x=24
X=4
Substitute x back into the original
-(4)+6y=26
-4+6y=26
6y=30
Y=5
Get the point (4,5)
-x+6y=26
Make the second problem and multiply everything by -1
5x+6y=50
-1(-x+6y=26)
X-6y=-26
Eliminate the y and combine evrything
6x=24
Divide 6 both sides
X=4
Then substitute the x
-(4)+6y=50
-4+6y=50
Add 4 both sides
6y=54
Divide 6 and y=9 x=4
Answers
Answer : He saved $30 money.
Step-by-step explanation :
when he earned $15 from babysitting, he saved money = 6 dollars
when he earned $1 from babysitting, he saved money = dollars
when he earned $75 from babysitting, he saved money = dollars
Therefore,He saved $30 money.
There are 5 fifteens in 75
There are 6 dollars saved everytime he makes 15 dollars
6 x 5 = 30
He saved 30 dollars
Answers
The 291 smallest tile or 177 largest tile.
What is Area?
Area is the amount of space occupied by a two-dimensional figure. In other words, it is the quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is square units which is generally represented as square inches, square feet, etc.
The area of a shape is calculated with the help of its length and width. Length is unidimensional and measured in units such as feet (ft), yards (yd), inches (in), etc. However
Given:
Area of floor = 320 feet²
Area of smallest tile= 1.1 square feet
Area of smallest tile = 1.815 square feet.
Number of smallest tile = 320/1.1 ≈ 291 tiles
Number of large tiles = 320/1.815 ≈ 177 tiles
Hence, the 291 smallest tile or 177 largest tile.
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Answers
always add up to an odd number.
Answers
Answer:
9.33
Step-by-step explanation:
Find the diagram attached, to get the length of RT, we will use the pythagoras theorem as shown:
Hyp² = opp²+adj²
Hyp = 11
Adj = 6
Opposite = RT
Substitute into the formula
11² = opp²+6²
Opp² = 11²-6²
Opp² = 121-36
Opp² = 85
Opp = 9.22
Hence the measurel RT to nearest hundredth is 9.22
Answers
The three translations applied on the triangle, where the first element of each vector represents the magnitude of the translation, and the second element represents the direction of the translation.
To find the magnitude and direction of the translations applied on a triangle, we need to know the coordinates of the vertices of the original triangle and the coordinates of the vertices of the transformed triangle.
Let's say the coordinates of the original triangle are (x1, y1), (x2, y2), and (x3, y3), and the coordinates of the transformed triangle are (x1', y1'), (x2', y2'), and (x3', y3').
The magnitude of the translation can be found by calculating the distance between the corresponding vertices of the original and transformed triangles using the distance formula. For example, the magnitude of the translation from (x1, y1) to (x1', y1') is given by:
sqrt((x1' - x1)^2 + (y1' - y1)^2)
Similarly, we can find the magnitudes of the other two translations.
The direction of the translation can be found by calculating the angle between the line connecting the corresponding vertices of the original and transformed triangles and the x-axis. We can use the arctangent function to find this angle. For example, the direction of the translation from (x1, y1) to (x1', y1') is given by:
tan^-1((y1' - y1)/(x1' - x1))
Similarly, we can find the directions of the other two translations.
Once we have the magnitudes and directions of the translations, we can describe the transformation using vector notation. The vector of the translation is given by:
< magnitude1, direction1 >
< magnitude2, direction2 >
< magnitude3, direction3 >
This represents the three translations applied on the triangle, where the first element of each vector represents the magnitude of the translation, and the second element represents the direction of the translation.
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