Answer:
11.8
Step-by-step explanation:
16-11=5
x-6.8=5
5+6.8=11.8
11.8-6.8=5
so X=11.8
The numbers we insert to balance an equation is called coefficient
Answer: D 3(5)(4) = 60 Units cubed
Step-by-step explanation:
Hi, assuming that the dimensions of the cube (length, width and height) are 3,5 and 4 (see attachment) we have to apply the next formula:
Volume of a prism = height x length x height
Replacing with the values given:
V = 3 (5) (4) = 60 units cubed
Feel free to ask for more if needed or if you did not understand something.
Answer:
18
Step-by-step explanation
Let's say that the amount of 5 dollar bills is x and 20 dollar bills is y, with this we can make an equation
x + y = 24
With that we can say that
5x + 20y = 210
Because that is how much each bill costs and the amount of which will equal a total of 210
Solve this systems of equations using elimination
5x + 5y = 120
-5x - 20y = -210
-15y = -90
y = 6
Plug in y = 6 to the first equation.
x + 6 = 24
x = 18
18 is the amount of 5 dollar bills.