First do distributive property
2x + 10 + 3x = 30
Now combine like terms
5x + 10 = 30
Subtract 10 from both sides
5x = 20
Divide both sides by 5
x = 4
Answer:
14
Step-by-step explanation:
When there are 2 -, they both create a +. the brackets are removed and you get 4--10, which is equal to 4+10 which = 14
Answer: Yes. The cookies are $ .75 each. The total cost is proportional to the number of cookies purchased.
T = $.75 × c
Step-by-step explanation:
Answer:
Width of the rectangle is: 
Option C is correct.
Step-by-step explanation:
Area of rectangle = 
Length of rectangle =
We need to find width of rectangle.
The formula used is:

Putting values in the formula to find Width of rectangle

Using the exponent rule: 
and simplifying the terms we get

So, Width of the rectangle is: 
Option C is correct.