Answer:
88y - 40
Step-by-step explanation:
hope this helps!
<span>equation 1/5x-2/3 y = 30, when y = 15?
so
</span><span> 1/5x-2/3 (15) = 30
1/5x - 10 = 30
1/5x = 40
x = 40(5)
x = 200
answer
</span><span>D.200</span>
Answer:
Perimeter 
Step-by-step explanation:
Let
= width of the rectangle.
From the information "length of a rectangle is 5cm more than width", we can write:
Length = 
- - - -
Perimeter
(formula for the perimeter of a rectangle)



∴ The expression of the perimeter of the rectangle in terms of
is
.
Hope this helps :)
1) Since order does not matter, 10C5 = 252.
2) I don't think I understand the 2nd question, can you elaborate.
Answer:
1/5 is the fraction of 20%.