Question

Select three ratios that are equivalent to 7:67:67, colon, 6.
Choose 3 answers:
Choose 3 answers:

(Choice A)

12:14

(Choice B, )

21:18

(Choice C)

42:36

(Choice D)
D
63:54

(Choice E)
E
84:62

Answer 1

I'm guessing the ratio is just 7:6

is that correct?

Answer 2

yes

Answer 3

i half to pick three of the choses thats equivalent to it

Answer 4

okay so look at the answer choices

we have a ratio of 7 to 6

for it to be equivalent, try to see which ones would be simplified down to 7:6

let's look at the first one

12:14

if you divide both numbers by 2, what do you get?

Answer 5

6 and 2

Answer 6

mhmm

6 is correct but what is 14 / 2

Answer 7

7*

Answer 8

there you go

so remember the ratio we're looking for is 7:6

but we just said 12:14 is the same as 6:7

it's not the same order so A isn't correct

Answer 9

what about B

21:18

what do you get if you divide both numbers by 3?

Answer 10

7 and 6

Answer 11

so is that the same ratio as 7 to 6?

Answer 12

no

Answer 13

why not

you just said
21:18 is the same thing as 7:6

when you divide both numbers by 3

so isn't that the same ratio as 7:6 in the original question which we're looking for?

Answer 14

it is because 7x7 is 21

Answer 15

7*3 = 21

and 6 * 3 = 21

and so if we have 7:6

it's the same ratio as 21:18

because if you multiplied 7 and 6 by 3, you get 21 and 18

does that make sense?

Answer 16

yes

Answer 17

good, so B is correct

what about C. 42:36

what do you get you divide both numbers by 6?

Answer 18

yes

Answer 19

yes what

Answer 20

c

Answer 21

Okay, C is also correct what about D?

63:54

divide both numbers by 9

does it also have a ratio of 7:6 ?

Answer 22

no

Answer 23

are you sure?

what is 63/9 =
what is 54/9 =

is that the same ratio as 7:6

Answer 24

no D

Answer 25

.. as in D is correct or wrong?

Answer 26

correct

Answer 27

and that is correct

Answer 28

so now you have selected your three correct answers and you don't even need to bother checking that last answer choice