A metalworker has a metal alloy that is 30% copper and another alloy that is 60% copper. How many kilograms of each alloy should the metalworker combine to create 50 kg of a 48% copper alloy? I really need help. I will mark brainliest. This is 9th-grade math.

let x=amt of 30% copper alloy to combine

60-x=amt of 80% copper alloy to combine

.30x+40-.80x=30.6

.50x=9.4

x=50.6

How many kilograms of each alloy should the metalworker combine?

30% copper alloy: 9.4 kg

80% copper alloy: 50.6 kg

40%

Step-by-step explanation:

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*