5/3 = 315/x

5*x = 5x

3*315 = 945

5x = 945

5x/5 = 945/5

x= 945/5

x=189

**Final answer: The riders are 189**

Answer:

192,000,000

Step-by-step explanation:

Given

General form of an Exponential distribution :

y = ab^x

a = initial amount = 3000000

b = growth factor = 2

x = period = 24 / 4 = 6

y = final amount ; after one day = 24 hours ; x = 24 /4 = 6

y = 3000000(2)^6

y = 3000000 * 64

y = 192,000,000

**Answer:**

x=3

**Step-by-step explanation:**

First distribute the 3!

3x+6+2x=21

Then, combine like terms.

5x+6=21

Move the 6 to the other side

5x=15

Divide each side by 5

x=3

Lets take $40 as 100% ,

2/40 = 0.05

0.05x100 = 5 %

Hence you paid 5% sales tax

**Answer:**

you have 10 cupcakes and give away 2 which is 20% of 10

**Step-by-step explanation:**