Answer:
x = 10
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Geometry</u>
- All angles in a triangle add up to 180°
Step-by-step explanation:
<u>Step 1: Set up equation</u>
(x + 1)° + (10x - 7)° + (8x - 4)° = 180°
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms: 19x - 10 = 180
- Isolate <em>x</em> term: 19x = 190
- Isolate <em>x</em>: x = 10
Answer:
x = 10
Step-by-step explanation:
45x - 15x = 300
Combine like terms
30x = 300
Divide each side by 30
30x/30 = 300/30
x = 10
To solve, I would write an equation like this: 0.3=x/70 , where x is the number of aces divided by 70 games and 0.3 is his ace average.
0.3=x/70
x=70x0.3
=21
The player has served 21 aces.
Check:
21/70
=0.3
Answer:
the second answer choice :) correct me if i am wrong
Step-by-step explanation:
