Answer:
C) 80
Step-by-step explanation:
x + 80 + 20 = 180
x + 100 = 180
x = 80
For this problem you can create a proportion.
Since 31,100 copies is 7.8% of the total copies spoke up to date you can make this proportion:
31,100. 7.8%
——— =. ———
x. 100%
Now you cross multiply and you will get
7.8x=3,110,000
After this you solve for x by isolating the variable.
7.8x/7.8. 3,110,000/7.8
x=398,717.949
Since the question asks you to round to the nearest whole number which is 7 then the final answer would be 398,718
Answer: There has been 398,718 copies sold to date.
Answer:
TSA=6a²
TSA=6*17*17=1734 mm²
Step-by-step explanation:
A<span>≈</span><span>10
___________________________________________________________-xoCote♥</span>
