Please help.<br> Is algebra.

Sophia is designing the seating arrangement for a concert and

pentagon [3]

Answer:

the answer for the first part is 260

the equation is n+8

Step-by-step explanation:

all you need to do is take the starting number witch is 13 then you add 8 and then take that number and add 8 so thats why the equation is n+8 n equaling the starting number and 8 equaling to the reoccurring number.

7 0

2 years ago

Maria studied the traffic trends in India. She found that the number of cars on the road increases by 10% each year. If there we

Delvig [45]

Answer:

Step-by-step explanation:

Let's first find the exponential function that models the situation in year one. The exponential standard form is

$y=a(b)^x$ where a is the initial value and b is the growth/decay rate in decimal form. If it is growth it is added to 100% of the initial value; if it is decay it is taken away from 100% of the initial value. We are told that the number of cars in year one was 80 million, so

a = 80 (in millions)

If b is increasing by 10%, then we are adding that amount to the initial 100% we started with to give us 100% + 10% = 110% or, in decimal form, 1.1

The model for our situation is

$y=80(1.1)^x$ where y is the number of cars after x years goes by. We want to find the difference between years 3 and 2, so we will use our model twice, replacing x with both a 2 and then a 3 and subtracting.