Answer: George needs to work 12 hours to have enough money to buy the bicycle.
Step-by-step explanation
Needs $140
Saved $44
Makes $8hr
Step One: Make an equation
8h + 44 = 140
Step Two: Solve for h
8h + 44 = 140
-subtract 44 on both sides'
8h = 96
-divide 8 on both sides
h = 12
Step Three: Check your work
8h + 44 = 140
8(12) + 44 = 140
96 + 44 = 140
140 = 140
Answer:
6x+2y+3
Step-by-step explanation:
5x+3+2y+x
6x+2y+3
Answer:
Independent variable- time spent in the dark room
Dependent variable - number of objects correctly identified
Conditions of the experiment- low light environment and lighted environments
Scores from the independent variable are used to construct the frequency distribution
Step-by-step explanation:
The independent variable is the factor that is being manipulated in an experiment and this time it is the time spent in a darkened room.
The dependent variable is the response variable, in this case, the number of objects correctly identified.
The experimental conditions involved bringing people from a lighted area into a darkened room.
A rotation 270° counterclockwise about the origin is the same as rotation 90° clockwise about the origin and has a rule:
(x,y)→(y,-x).
Then:
- D(−2,4)→D'(4,2)
- E(4,7)→E'(7,-4)
- F(10,3)→F'(3,-10)
- G(8,0)→G'(0,-8)
Answer: the coordinates of vertices of quadrilateral D′E′F′G′ are D'(4,2), E'(7,-4), F'(3,-10), G'(0,-8).