1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maxonik [38]
2 years ago
9

A metallurgist has one alloy containing 45% copper and another containing 69% copper. How many pounds of each alloy must be use

to make 42 pounds of a third alloy containing 66% copper
Mathematics
1 answer:
lakkis [162]2 years ago
8 0

5.25 pounds of one alloy containing 45% copper and 36.75 pounds of 69% copper is used to make 42 pounds of 66% copper

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Let x represent the amount of 45% copper and y represent the amount of 66% copper needed to make 42 pounds of a third alloy containing 66% copper. Hence:

x + y = 42   (1)

Also:

0.45x + 0.69y = 42(0.66)   (2)

This gives:

x = 5.25, y = 36.75

5.25 pounds of one alloy containing 45% copper and 36.75 pounds of 69% copper is used to make 42 pounds of 66% copper

Find out more on equation at: brainly.com/question/2972832

#SPJ1

You might be interested in
What does x equal in the equation 3x=x+24
erastovalidia [21]

3x = x + 24

3x - x = 24

2x = 24

x = 24 : 2

x = 12

8 0
3 years ago
Read 2 more answers
Cuantos años hay 5823 días
jonny [76]

Answer:

16 anos

Step-by-step explanation:

6 0
3 years ago
Determine the slope-intercept form of the equation of the line parallel to y = -4/3 x + 11 that passes through the point (–6, 2)
MatroZZZ [7]
I've attached working :)

7 0
3 years ago
Find all the values of qAbsolute value of 7
tester [92]
The Absolute value of 7 is seven since it is only seven did-gets away from zero.
7 0
3 years ago
Read 2 more answers
-3(2x-4)&lt;4<br><br> will mark brainlist
Vlad [161]

Answer:

96 answer

Step-by-step explanation:

hope you like it

8 0
2 years ago
Read 2 more answers
Other questions:
  • Solve 2sin x + sqrt3 = 0
    7·1 answer
  • Which expression is it equivalent to?
    7·1 answer
  • What is the volume of this stack of blocks if each block measures 1 centimeter on each side ?
    12·1 answer
  • Find the value of c so that (x-5) is a factor of the polynomial p(x)
    13·1 answer
  • Brandon has some seashells. His brother has half as many seashells. They have 1080 seashells in all. How many seashells does Bra
    6·2 answers
  • Any one know the answer
    10·2 answers
  • Enrique is going to a party this weekend. He is bringing 20 liters of soda to the party. A liter of soda costs $1.59.
    7·1 answer
  • Marco mixed 2 teaspoons of sugar and 1 teaspoon of milk into his coffee. What is the ratio of teaspoons of sugar
    13·1 answer
  • True or False? No matter how the colonial government was setup, England had the ultimate say within the colonies
    8·2 answers
  • Let's talk about Frankie's work. Does it make sense? Is 3/5 equivalent to 6/10 ? Why or why not? Find at least two other fractio
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!