Answer:
$0.80
Step-by-step explanation:
-3 (1x + 1y = 3.2)
3x + 1y = 8
----------------
-3x - 3y = -9.6
+
3x + 1 y = 8
-------------------
0x -2y = -1.6
÷ -2
-----------------
y = 0.8
one hamburger costs $0.80
The number of people in the auditorium can be less than or equal to 420 so let p represent the number of people
The inequality is p≤420
Answer: the option A.
The elimination method consist is adding the two equations in a way that one variable be eliminated..
In order to do that you might have to manipulate on of the equations prior to add the two equations.
In this case, ff you multiply the second equation by - 1 you will get
- x - y = - 4
which you can add to the first equation
2x + y = 8 to eliminate the y.
10.7583 is the area of the garden
Answer: He ate 8 grapes on Monday.
Step-by-step explanation:
Let be "x" the number of grapes Godswill ate on Monday.
You know that he ate 6 more grapes than he had on Monday. This can be expressed with:
Since each day that week, he ate 6 more grapes than the day before and he realized on Friday he had eaten a total of 100 grapes this week, you can write the following expression and solve for "x":
