We can calculate , the amount of euros that has the same value as u. s. dollars, using the equation e=1720de=\dfrac{17}{20}de=2017de, equals, start fraction, 17, divided by, 20, end fraction, d.
how many euros have the same value as u. s. dollar?
euros
how many u. s. dollars have the same value as euro?
dollars

Part 1)

Part 2)

Step-by-step explanation:

The correct question is

We can calculate E, the amount of euros that has the same value as D U.S. dollars, using the equation E=(17/20)D .

How many euros have the same value as 1 U.S. dollar?

How many U.S. dollars have the same value as 1 euro?

Part 1) How many euros have the same value as 1 U.S. dollar?

we have

so

For D=1

substitute in the given equation and solve for E

Part 2) How many U.S. dollars have the same value as 1 euro?

we have

so

For E=1

substitute in the given equation and solve for D

Multiply by 20/17 both sides

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.