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

translate k to n and reflect across the line containing jk.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional