Answer:
x=11
Step-by-step explanation:
For extra help the second answer is: 7a(3-a)
Answer:
-2.5
Step-by-step explanation:
<h3>
Answer: 8.82</h3>
Work Shown:
(5.15)/(6.30) = (7.21)/(x)
5.15*x = 6.30*7.21 ....... cross multiply
5.15x = 45.423
x = (45.423)/(5.15) ...... dividing both sides by 5.15
x = 8.82
Well first you do 6÷3=2. Then you do 2*5= 10. Also do 20+10=30-15=15. So your answer is 15
