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
11111nata11111 [884]
2 years ago
11

A chemist has two alloys, one of which is 5% gold and 20% lead and the other which is 30% gold and 50% lead. How many grams of e

ach of the two alloys should be used to make an alloy that contains 31.5 g of gold and 105 g of lead?
Mathematics
1 answer:
dmitriy555 [2]2 years ago
3 0

The amount of the first alloy is 450 grams and the amount of the second alloy is 30 grams.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

A chemist has two alloys, one of which is 5% gold and 20% lead and the other which is 30% gold and 50% lead.

Let's suppose the x is the amount of the first alloy and y is the amount of the second alloy:

We can make two linear equation in two variables:

0.05x + 0.3y = 31.5  ...(1)

0.2x + 0.5y = 105  ...(2)

After solving the above two linear equations by substitution method, we get:

x = 450 grams

y = 30 grams

Thus, the amount of the first alloy is 450 grams and the amount of the second alloy is 30 grams.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

You might be interested in
-233.2 - 25.8<br> Please help.
Anon25 [30]

Answer:

-259

Step-by-step explanation:

brainliest

3 0
2 years ago
Read 2 more answers
_______are the possible results of an experiment
Virty [35]
Outcome

Hope this helps :)

6 0
2 years ago
Ciny bought s car for 21, 33. A few years later, she sd the car for 19, 700. Find the percent of change in the value
Lina20 [59]
823.582% increase between the initial price and the current price.
8 0
2 years ago
Suppose that the cost of producing x tablets is defined by c(x)= 200 + 10x + 0.2x squared* where x represents the number if tabl
sammy [17]

we are given

C(x)=200+10x+0.2x^2

part-A:

Since, x is number of tablets

C(x) is cost of producing x tablets

so, vertical box is C(x)

so, we write in vertical box is "cost of producing x tablets"

Horizontal box is x

so, we write in horizontal box is "number of tablets"

part-B:

we have to find average on [a,b]

we can use formula

\frac{C(b)-C(a)}{b-a}

we are given point as

a: (15 , 395)

a=15 and C(15)=395

b: (20, 480)

b=20 , C(20)=480

now, we can plug values

=\frac{480-395}{20-15}

=17...........Answer

part-c:

we have to find average on [b,c]

we can use formula

\frac{C(c)-C(b)}{c-b}

we are given point as

b: (20, 480)

b=20 , C(20)=480

c:(25,575)

c=25 , C(c)=575

now, we can plug values

=\frac{575-480}{25-20}

=19..............Answer


5 0
3 years ago
Please please answer my question please answer my question
Luda [366]

Answer:

A. Convex heptagon Is the correct answer

Step-by-step explanation:

Please mark brainliest!

4 0
3 years ago
Read 2 more answers
Other questions:
  • Please help with this question
    9·2 answers
  • How is the function, y=x-3 related to y = x? Graph the function by translating the parent function.
    9·1 answer
  • Find the measures of the supplementary angles if their measures are in ratio of 11:25
    6·1 answer
  • Joe's new car travel 418 miles on 16 gallons of gas find the unit rate in miles per gallon show your work I will Mark brainiest
    13·1 answer
  • The area of the terrace is 18m i need 75kg of sand for every 1m of terrace the sand cost 2 pounds for 25kg bag how much sand do
    13·1 answer
  • As Jupiter revolves around the sun, it travels at a speed of approximately 8 miles per second. Convert this speed to miles per m
    15·1 answer
  • !MAGOR HELP!<br> Question and answers are in the pic
    11·2 answers
  • Find two numbers such as a no. exceeds the other by 18 , there sum should be 92​
    5·1 answer
  • Diego has 12 chocolate chip cookies and 18 vanilla cookies. He wants to
    10·1 answer
  • What is an equation of the line that passes through the points (6, 4) and(6,−6)?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!