x = pounds of 34% copper

46 - x = pounds of 48% copper

0.34x + 0.48(46 - x) = 0.37(46) {pounds times percent value equals total}

0.34x + 22.08 - 0.48x = 17.02 {used distributive property}

-0.14x + 22.08 = 17.02 {combined like terms}

-0.14x = -5.06 {subtracted 22.08 from each side}

x ≈ 36.14 {divided by -0.14 and rounded to two places}

46 - x ≈ 9.86 {substituted 36.14, in for x,into 46 - x}

Approximately,

**36.14 pounds of 34% copper
**

9.86 pounds of 48% copper*@AlgebraHouse*
**
**