Answer:
A) X + Y = 12
B) 10Y + x = 10x + Y -18
B) 9Y = 9x -18 multiplying A) by -9
A) -9Y = 9x - 72 adding A and B we get
0 = 18x -90
x = 5
The number is 75
Double-Check
7 + 5 = 12
75 -57 = 18
Step-by-step explanation:
Answer:
angle 4 = 34 degrees
Step-by-step explanation:
angle 4 is equal to angle 2 because it is an alternate interior angle of 34 degrees.
Answer:

Step-by-step explanation:
The given expresion is:

We want to find the first step in simplifying the above expression based on order of operations.
We use PEDMAS, so we deal with parenthesis first.
Within the parenthesis, we still need to multiply first to get:

Step-by-step explanation:
5 packs = $4.99 => $5
1 packs = $5 ÷ 5
= $1
So, much on 1 packs of gum cost is $1
Sorry, if i wrong. Im newbie in USA server