Answer:
x = 1
y = -3/2
Step-by-step explanation:
Step 1: Arrange the equations with like terms in column.
Step 2: You want 1 set of coefficients that are opposites. This problem already has opposites: -2y and +2y.
Step 3: Solve for x.
4x-2y=7
3x+2y=0
--------------
7x = 7
x = 1
Step 4: Substitute the value of x and solve for y.
4(1)-2y=7
4-2y=7
-2y=7-4
-2y=3
y=-3/2
<u>Question Correction</u>
Simon fills a container with 38 1-in, cubes. The container is a box of dimension 4 in. by 3 in. by 4 in.,How many more 1 in cubes does the container need to be completely filled?
Answer:
10 1-in cubes
Step-by-step explanation:
First, we determine the Volume of the box.
Volume of a Rectangular Prism =Length X Height X Width
Volume of the box = 4 X 3 X 4= 48 cubic inches
To fill the box container, we would need 48 1 in cubes.
Since Simon already filled the container with 38 1-in, cubes.
Number of 1-in. cubes required to fill the box
=48 -38
=10.
Simon would need 10 1-in cubes to fill the box.
Answer:
1.827 x 10^-23
Step-by-step explanation:
(1.994 x 10^-23) - (1.67 x 10^-24) = 1.827 x 10^-23
Answer:
B. y = -1/3x + 1
Step-by-step explanation:
(look at attached picture)
Answer:
D.
Step-by-step explanation:
If you were to try to figure out how many miles Sandra walked per hour, you would set up your division as 13/3 miles over 1 hour, so therefore D is correct.
I hope I could help :)
