Saturday

October 25, 2014

October 25, 2014

Posted by **Rezu** on Tuesday, April 24, 2012 at 7:44pm.

20kgs?

- Math -
**Damon**, Tuesday, April 24, 2012 at 7:52pm3 D + 2 d = 32

4 D + 3 d = 44

multiply first by 3, second by 2

9 D + 6 d = 96

8 D + 6 d = 88 subtract

----------------

D = 8

so 3*8 + 2 d = 32

2 d = 8

d = 4

so

2(8) + 1(4) = 20

- Math -
**Rezu**, Tuesday, April 24, 2012 at 8:19pmThank You!

**Answer this Question**

**Related Questions**

math - I family of ducks contains 7 ducks which are 44 lbs. The other wieghs 32 ...

6th Grade Math - A mother duck has 5 ducklings. The average weight of the 5 ...

Math - Three pigs and two piglets weigh 32 kg. Four pigs and five piglets weigh ...

math - there were some ducks in the pond.28 ducks flew away.7 more arrived at ...

algebra - there were some ducks in the pond.Twenty-eight ducks flew away. Seven ...

Science - A student is assigned the task of measuring the mass of one tennis ...

math - Two of alexandra apples weigh the same as a banana.A banana and a cherry ...

math - ken and mark have some ducks and pigs. when asked how many ducks and pigs...

chemistry - If you filled up three balloons with equal volumes of hydrogen, ...

algebra - 5 green balls and 2 red balls together weigh 10 pounds, and 1 green ...