Question

4 friends have different numbers of cows on their farms. Jorge has 3 x as many cows as Carla. Marcus has half as many cows as Jorge. Dominique has 2 less than 4 x as many cows as Carla. How many cows does each person have if they have a total of 169 cows?

Answer 1

So you want to try this on your own like the last one?

Answer 2

I don't know where to start

Answer 3

Same like last time, lets choose letters for the names

Answer 4

J=Jorge
C=Carla
M=Marcus
D=Dominique

Answer 5

Next build the relationships

Answer 6

J(3)C?

Answer 7

M/2=J

Answer 8

Nope, M has half the number of cows as J

Answer 9

So it will be
M = J/2 right?

Answer 10

Would it be J=C(3)?

Answer 11

Yes

Answer 12

D-2=C(4)?

Answer 13

try the last one again

Answer 14

D=C(4)-2?

Answer 15

yup correct!

Answer 16

What's next?

Answer 17

Total is 169 cows

Answer 18

yup good.

Answer 19

So lets write M, J and D in terms of C?

Answer 20

I don't know how

Answer 21

Okay
M = J/2 right?

Answer 22

yes

Answer 23

But J = 3c so M = 3C/2?

Answer 24

Okay

Answer 25

And D = 4C-2 right?

Answer 26

Okay

Answer 27

So M+J+C+D = 169 right?

Answer 28

Is M=27 and C=18 and J=54 and D=70?

Answer 29

Super@

Answer 30

Super!

Answer 31

Thanks again