Answer:
77%
Step-by-step explanation:
23 divided by 30 is 0.766666, which percent-wise is rounded to 77% :)
So you make your equation 4x+20+40=180.
Add like terms and get 4x+60=180.
Subtract 60 from both sides, get 4x=120.
Divide boths sides by 4, get your answer of x=30.
Hope this helps
So,
"7 more than"
7 +
"twice a number x"
2 * x or 2x
"7 more than twice a number x"
7 + 2x or 2x + 7
