If jake can write 450 words in 15 minutes how much can he write in 20 minutes?

600 words

Step-by-step explanation:

To find how many words Jake can write in 20 minutes, you can find how many words he can write in 1 minute and multiply that by 20. Jake can write 30 words in a minute because 450 words divided by 15 minutes is 30. Then, multiply 30 by 20 which is 600.

450 divided by 15 is 30 so

he writes 30 words each minute

so add 150 to it. (because 30 x 5 = 150)  i think the answer would be 600

Step-by-step explanation:

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

4

step-by-step explanation: