Answer:
16+x
Step-by-step explanation:
Answer: They will charge same amount for 360 minutes of calls.
Step-by-step explanation:
A phone company offers two monthly plans plan A cost $9 Plus And additional 0.12 $ for each minute of calls. Plan B cost $27 plus an additional $0.07 for each minute of calls
For what amount of calling do the two plans cost the same?
Let the each minute of calls be 'x'.
So, for plan A would be
plan A cost $9 Plus And additional 0.12 $ for each minute of calls is expressed as
![y_1=9+0.12x](https://tex.z-dn.net/?f=y_1%3D9%2B0.12x)
Plan B cost $27 plus an additional $0.07 for each minute of calls is expressed as
![y_2=27+0.07x](https://tex.z-dn.net/?f=y_2%3D27%2B0.07x)
According to question, it becomes,
![y_1=y_2\\\\9+0.12x=27+0.07x\\\\0.12x-0.07x=27-9\\\\0.05x=18\\\\x=\dfrac{18}{0.05}\\\\x=360](https://tex.z-dn.net/?f=y_1%3Dy_2%5C%5C%5C%5C9%2B0.12x%3D27%2B0.07x%5C%5C%5C%5C0.12x-0.07x%3D27-9%5C%5C%5C%5C0.05x%3D18%5C%5C%5C%5Cx%3D%5Cdfrac%7B18%7D%7B0.05%7D%5C%5C%5C%5Cx%3D360)
Hence, they will charge same amount for 360 minutes of calls.
45/56
5/7 divided 8/9
5/7 times 9/8
45/56
Answer:
1. D
2. A
3. C
4. A
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
4 × 16= 64
√64 = 8
hope this helps...