Friday

April 18, 2014

April 18, 2014

Posted by **Matt** on Tuesday, May 10, 2011 at 12:37pm.

THe owner of a fancy food shoppe wants to mix cashews selling at $8/kg and pecans selling at $7/kg. How many kg of each kind of nuts should be mixted to get 8 kg worth $7.25/kg?

- algebra -
**Henry**, Wednesday, May 11, 2011 at 3:02pm$8/kg*Xkg + $7kg*Ykg = 7.25/kg*8kg,

Eq1: 8X + 7Y = 58,

Eq2: X + Y = 8,

Multiply Eq2 by -8, add the 2 Eqs and get:

-Y = -6,

Y = 6kgs of pecans.

Substitute 6 for Y in Eq2 :

X + 6 = 8,

X = 2 kgs of cashews.

**Related Questions**

algebra 1 - The owner of the Fancy Food Shoppe wants to mix cashews selling at $...

wossmaan - the nuttyy shoppe has 10 kg of mixed pecans and cashews which sell ...

Math - This is the question given: "Peanuts sell for $5/kg and cashews for $20/...

math - A man sells a nut mixture consisting of 1/3 pecans and 2/3 cashews. ...

Math Help plz!!! Really need help. - Use the Systematic Trial to solve this ...

Algebra Word Problem - Peanuts are selling for $2 per pound, and cashews are ...

physics - The following objects are released from rest and allowed to roll down ...

algebra - A man selling fruit has only three weights; but with them he can weigh...

math - 0.5 kg of tea was purchased at Rs 80 per kg.if it was sold at a gain of ...

English - 1. They are at the market. 2. They are in the market. (Which ...