Question

The cost of renting a car is 55 a week plus.35 mile traveled during that week an equation to represent the cost would be y=55+0.35x where x is the number of miles traveled if your cost was 77.75 how many miles were you charged

Answer 1

Answer:

65 miles

Step-by-step explanation:

y=55+0.35x

77.75 = 55+0.35x

77.75 - 55 = 0.35x

22.75 = 0.35x

22.75 ÷ 0.35 = 0.35x ÷ 0.35

65 = x

x = 65

Answer 2

Answer:

Step-by-step explanation:

Một trung tâm tai mũi họng có tỷ lệ bệnh nhân là 25, 40, 35. Tủ lệ nặng phải mổ là 1, 2, 3. Tính xác suất được 1 bệnh nhân phải mổ