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Vladimir [108]
3 years ago
13

A metalworker has a metal alloy that is 25​% copper and another alloy that is 70​% copper. How many kilograms of each alloy shou

ld the metalworker combine to create 100 kg of a 61​% copper​ alloy?
Mathematics
2 answers:
Norma-Jean [14]3 years ago
8 0

Answer:

Step-by-step explanation:

let 25 % copper=x kg

75 % copper=(100-x) kg

0.25 x+(100-x)*0.75=100*0.61

25x+7500-75 x=6100

-50 x=-1400

50 x=1400

5x=140

x=28

25 % of Copper=28 kg

75 % of Copper=100-28=72 kg

Minchanka [31]3 years ago
4 0

Answer:

28kg for copper

Step-by-step explanation:

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Answer:

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3 years ago
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area= 1/2 × d1 ×d2

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6 0
3 years ago
The sum of two numbers is 24 and their difference is 2. What are the numbers?
Musya8 [376]
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3 years ago
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10x + (-8)= -3x + 2<br> How do I solve this in pemda order
larisa [96]

Answer:

x= 10/13

Step-by-step explanation:

First, we need to put the variable on one side and the constants on another side.

Also a positive and a negative equal a negative. [this is related to +(-8)]

10x+(-8)= -3x+2

+3x         +3x

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4 0
3 years ago
Jada made 6 cups of blueberry jam and divided the Jam in 4 containers. How much jam went in each container
Blizzard [7]

1\frac{1}{2} cups of blueberry jam went in each container.

Step-by-step explanation:

Given,

Jada made blueberry jam = 6 cups

Number of containers = 4 containers

Jam in one container = \frac{Cups\ of\ blurberry\ jam\ made}{Number\ of\ containers}

Jam in one container = \frac{6}{4}

Jam in one container = \frac{3}{2} = 1\frac{1}{2}

1\frac{1}{2} cups of blueberry jam went in each container.

Keywords: fractions, division

Learn more about fractions at:

  • brainly.com/question/2013970
  • brainly.com/question/1998796

#LearnwithBrainly

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