Answer: 7740
Step-by-step explanation: take 180(n-45) and n represents the sides
Answer:
Hey there!
2x-5y=10
Add 5y on both sides to get: 2x=10+5y
Divide by 2, not 2x. This will isolate the x.
x=5+2.5y
x=2.5y+5
Hope this helps :)
Answer:

Step-by-step explanation:
We know we have to write an algebraic equation for the sentence - so "translate" the phrases of the sentence step-by-step. Let the unknown number be represented by the variable n, as the question states.
Start with the phrase "the sum of a number and 4.4." A sum comes as a result of adding numbers together - therefore the first part of the equation must be
.
Next, the sentence says "is 8.1." The "is" indicates that the expression we just wrote equals something, so that number must be 8.1. Therefore, the whole equation must be
.