At Silver Gym, membership is $20 per month, and personal training sessions are $35 each. At Fit Factor, membership is $70 per month, and personal training sessions are $25 each. In one month, how many
personal training sessions would Sarah have to buy to make the total cost at the two gyms equal?

Step-by-step explanation:

Total cost of Silver Gym  = 35 + 25N     where N is the number of sessions

Total cost of Fit Factor  = 75 + 15N    

To find out when the costs are equalset the equations equal

35 + 25N  = 75 + 15N     subtract 15N from both sides

35 + 10N  = 75        subtract 35 from both sides  

10N  = 40         divide both sides by 10

N  = 4   sessions

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.