Answer:
8x+15=7 8x=-8 x =-1
Step-by-step explanation:
So percent is parts out of 100 so x%=x/100
68/70
divide totaly
0.9714/1
multiply by 100/100 to make bottom 100
97.1% is the answer
Answer:
(x + 2) + (–5x + 4) / (x² – 2x + 1)
Step-by-step explanation:
(x³ – 8 x + 6) ÷ (x² – 2x + 1)
The operation can be carried out as follow:
Please see attached photo for details.
(x³ – 8 x + 6) ÷ (x² – 2x + 1) =
(x + 2) + (–5x + 4) / (x² – 2x + 1)
The LCD of 2/5 + k/4 = 9/10 is 20. Applying this LCD, we get:
8 + 5k = 18. Subtracting 8 from both sides: 5k = 10. Then k = 10/5, or k = 2.
So you subtract, 27-22. 27-22 is equal to 5. So, John will buy 5 kinds of T- Shirts.