Answer:
x= -2
Step-by-step explanation:
The first thing I did was isolate the x's on one side. I subtracted 38x from both sides. This gives me:
-9x=18.
Now i divide both sides by -9. Giving me x=-2
Answer:
Step-by-step explanation:
Assuming the room is a rectangle...
The area of a rectangle = its length × its width.
The amount of carpet we need to cover our rectangular room = 8.5 ft × 7.5 ft
Use decimal long multiplication or otherwise to get 63.75 ft².
Answer:
D. 8
Step-by-step explanation:
See the picture for steps
In order to find the probability of both marbles being drawn being the same colour, the probability of each marble being drawn has to first be found and then multiply both probability to find the probability of two orange marble being drawn consecutively.
Now, the probability of drawing an orange marble = ⁴/₉
since a marble has been removed and wasn't replaced then there are now 5 pink + 3 orange marbles (8 marbles in total) in the bag.
∴ the probability of the second marble drawn being orange = ³/₈
⇒ the probability of <span>two orange marbles in a row without the first being replaced = </span>⁴/₉<span> </span>× ³/₈ = ¹/₆
