Answer:
A, D
Step-by-step explanation:
A. 5x = 20
divide by 5 on both sides
x = 4
D. x/2 = 2
multiply both sides by 2
x = 4
B and C would equal -4
E would equal 64
It is biased because they surveyed people who were at a park, therefore they enjoy parks and would want more in the area
Answer:
140 cm
Step-by-step explanation:
Given that:
Total length of ribbon present with Billy = 2.4 m
This ribbon is to be shared with 12 friends evenly.
Billy is doing this work of making craft for the past many years.
To find:
How many centimeters of ribbon that 7 friends will get?
Solution:
First of all, let us find out what length of ribbon will each person get.
Length of ribbon to be shared with each person = Total length of ribbon divided by total number of persons
Length of ribbon to be shared with each person = 
Now, The length of ribbon that 7 friends will get = 7
0.2 = 1.4 m
1 m = 100 cm
1.4 m = 1.4
100 cm = <em>140 cm</em>
Answer:
x = 15
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 given angles and equate to 180, that is
3x - 10 + 6x + 5 + 4x - 10 = 180, simplify left side
13x - 15 = 180 ( add 15 to both sides )
13x = 195 ( divide both sides by 13 )
x = 15