In a certain​ chemical, the ratio of zinc to copper is 4 to 13. A jar of the chemical contains 286 of copper. How many grams of zinc does it​ contain?

Answers

Answer 1

Answer: It contains 88 g of zinc.

Step-by-step explanation:

Given: The ratio of zinc to copper is 4 to 13.

Ratio can be written as [tex]\dfrac4{13}[/tex]

A jar of the chemical contains 286 g of copper.

Let the quantity of zinc be x.

By using the direct proportion rule:[tex]\dfrac{x_1}{y_1}=\dfrac{x_2}{y_2}[/tex]

[tex]\dfrac{x}{286}=\dfrac{4}{13}\\\\ x=\dfrac{286\times4}{13}\\\\\Rightarrow\ x=88[/tex]

Hence,  It contains 88 g of zinc.


Related Questions

Coach Pugh has 12 helmets and 8 footballs in his locker room. Wich ratios are equivalent to the ratio of helmets to footballs in coach pugh's locker room... (Select all that apply) ...... 1:3,,2:3,,3:2,,4:2,,6:4,,24:16
PLZ I WILL GIVE HIGH RANKING

Answers

Answer:

3:2 6:4 24:16

Step-by-step explanation:

Question in the photo.

Answers:
A.) ASA
B.) SSS
C.) SAS
D.) AA

Answers

Answer: I think it might be sss or sas

Step-by-step explanation:

Answer:

I think AAA is the answer because similarity is mostly proved by AAA axiom

e + a = ?; where e and a are corresponding angles.

e = 55°

Answers

Answer:

e+a=110° because e and a are corresponding angles ♥️

HELP URGENT I AM TIMED PLEASE SOLVE AND EXPLAIN YOUR ANSWER DUE IN 5 MINUTES :)

Answers

Answer:

njblhgkc dggh,bn bhjvbhj,n hg cfxzedsetxdrycfuvgibkhjnm

Step-by-step explanation:

What is an equation of the line that passes through the points (3, 1) and (4,4)?

Answers

Answer:

Step-by-step explanation:

y2-y1

x2-x1=

4-3    

4-1 =  1/3

y=1/3x

Write an expression that represents the area in square feet of each room in the house shown. Then
write an expression that represents the area of the whole house.
• Bedroom =
• Closet =
• Bathroom =
• Total Area =

Answers

Answer:

Bedroom = x^2 ft^2

Closet = 25 ft^2

Bathroom = 6x ft^2

Total Area = x^2 + 6x + 25 ft^2

Ryan wrote a total of 8 pages over 2 hours. How many hours will Ryan have to spend writing
this week in order to have written a total of 48 pages? Assume the relationship is directly
proportional

Answers

Answer:

12 Hours

Step-by-step explanation:

So it says he writes 8 pages in 2 hours. Which would mean he takes an hour to write 4 pages. You divide 48 pages by 4 hours and you get 12.

EASY POINTS

Which statements are true? Check all that apply.
All rectangles are squares.
All rhombi are parallelograms.
All squares are rhombi.
All trapezoids are parallelograms.
No trapezoid is a rectangle.

Answers

Answer:

1 is true

2 is true

3 is true

Answer:

1 check

2 check

3 no check

4 no check

5 check

Step-by-step explanation:

Please answer correctly !!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think it's 169

Step-by-step explanation:

since a straight line is 180⁰ I subtracted 11

Omar wants to purchase a new bicycle for $134.45 and helmet for $22.55.
If the sales tax rate is 8%, what will be the total amount of sales tax?

Answers

Answer:

12.56

Step-by-step explanation:

143.45+22.55=157.00

157×.08= 12.56

The Daytona 500 is 500 miles long. How long is the race in kilometers? (Use the school conversion sheet)

Answers

Answer:

804.672 km

Step-by-step explanation:

Answer:

It's 804.672 long in kilometers. If needed to be round then about 805 kilometers.

Step-by-step explanation:

You know that:

1 mile = 1.609344 km

So you'll do

500 * 1.609344 = 804.672 km

Important phases of Newton's education and scientific work occurred in isolation. Why might this have been helpful to him? On the other hand, why is working in isolation problematic for developing scientific ideas?

Answers

Answer:

Step-by-step explanation:

This might have been helpful to Newton as it allowed him to focus more clearly on his ideas. Newton was incredibly talented and ahead of his time in his field, which being in isolation helped him focus and develop on his ideas. This is not the case for the majority, most scientists tend to focus on a single aspect of a problem, usually the aspect that they have the most experience in. This can lead to them being blinded and not being able to see the possible solution. That is why working with others that are able to view the problem from a different perspective can help greatly.

Working in isolation might have helped Newton focus clearly on his ideas.

Working in isolation might be problematic in developing scientific ideas because of the tendency of having a narrow perspective about a problem and not being able to find possible solution.

What is Working in Isolation?

Working in isolation means to work remotely or alone without the input or help from other people.

Working in isolation might have been helpful to Newton, who was quite talented, as it may have enabled him focus clearly on his ideas.

Why Might Working in Isolation Problematic?

1. Tendency of having a narrow perspective about a problem.

2. Probability of not being able to find possible solution.

In summary, working in isolation might have helped Newton focus clearly on his ideas.

Working in isolation might be problematic in developing scientific ideas because of the tendency of having a narrow perspective about a problem and not being able to find possible solution.

Learn more about working in isolation on:

https://brainly.com/question/7353006

Factorise fully
x2 - 42^2

Answers

Step-by-step explanation:

(x_42)(x+42)...

....

The answer is (x + 42)(x - 42)

I need help ASAP
3k+30=95+k+2k-5

Answers

3k+30=95+k+2k-5
3k+30=90+3k
0k+30=95
0k=65
k=0

Ms. Smith bakes 6 cookies in 15 minutes.
will it take her to bake 48 cookies?
How many hours

Answers

6 cookies/15 minutes

48/6= 8

8*15minutes= 120 minutes
120/60

2 hours = Answer

Answer:

120 minutes or 2 hours I think

Step-by-step explanation:

ok so you want to figure out how many hours it will take for her to bake 48 cookies. It takes 15 minutes to bake 6 cookies.

So 6x8=48 cookies.

Multiply 15 minutes times 8 since one batch of cookies (6) 15 minutes long and she wants to bake 48 cookies.

15x8=120

That's 120 minutes, but you want how many HOURS it takes.

there are 60 minutes on a hour so you will take 120 divided by 60

120/60= 2

To check, multiply 60x2= 120.

Hope this helps!

Bruh can someone answer this I’ll give brainliest

Answers

It’s a ! you add both of the numbers to get your missing perimeter.
I’m very sorry if it’s wrong but this is what I believe! stay safe

Cody rented a bicycle from Cycle Factory for $65. How many hours did Cody rent the bike for if their cost is $16 to rent the bike plus $7 per hour?

Answers

Answer: Cody rented the bike for 7 hours.

Step-by-step explanation:

$65-$16=$49

$49/$7=7 hours

What is the missing number in the solution to 958 ÷ 10?

Answers

Answer:

B.)58?

Step-by-step explanation:

Hope I helped..

Answer:

b: 58

Step-by-step explanation:

What is the value of the expression shown below (3/5)^2+4×3-2 PLZ HELP THIS ASSIGNMENT IS DUE IN 10 MINUTES ​

Answers

Answer:

[tex]10\frac{9}{25}[/tex]

Step-by-step explanation:

Answer:

10 9/25

Step-by-step explanation:

i did mathsss i hope this does help tho

help me please with this question

Answers

Answer:

see explanation

Step-by-step explanation:

2B + 3C

= 2 [tex]\left[\begin{array}{ccc}4&-5\\-2&1\\\end{array}\right][/tex] + 3 [tex]\left[\begin{array}{ccc}1&-1\\-6&3\\\end{array}\right][/tex]

Multiply each element in the matrices by the scalar quantity, that is

= [tex]\left[\begin{array}{ccc}8&-10\\-4&2\\\end{array}\right][/tex] + [tex]\left[\begin{array}{ccc}3&-3\\-18&9\\\end{array}\right][/tex]

Add corresponding elements from each matrix

= [tex]\left[\begin{array}{ccc}8+3&-10-3\\-4-18&2+9\\\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}11&-13\\-22&11\\\end{array}\right][/tex]

Layla's dog eats 5/8 of a pound of food each day. Layla has a bag containing 3 3/4 pounds of
dog food. How many days will the bag feed Layla's dog?

Answers

Answer:

6 days

Step-by-step explanation:

You just divide 3/8 by 3 3/4. Hope this helps you!!!

Anthropologists and archaeologists study the cultures, languages, archaeological remains, and physical characteristics of people across the world and through time. Typically, they conduct research to answer questions and test hypotheses about human behavior and culture.

Answers

Answer:

ummm there's no question dude but it's good to know that because i never knew that

Step-by-step explanation:

...

Find the value of x.

Answers

Answer:

x = 5

Step-by-step explanation:

Here, from what we have, the angle and the sides facing it are equal

Since we have pi oh both sides

Thus;

6x + 6 = 9x-9

9x-6x = 9 + 6

3x = 15

x = 15/3

x = 5

What is the equation of the line ?

Answers

Y=-1/3x+5 is the correct answer:)

hehe i need help with the whole quiz basically:I
Find the decimal that is equivalent to:



A. 1.714
B. 0.583
C. 0.0583
D.

Answers

Answer:

a

Step-by-step explanation:

math

Answer:

Don't cheat that's lame

What is the answer I need it quick 3/4 + 3/7 A 1 5/28. B 1 7/28 C 6/28 D 6/11

Answers

Answer:

33/28

Step-by-step explanation:

(3/4) + (3/7) = 33/28

~1,18

You started a savings account with $125. Every month, you deposit $55 into your savings account. What is the linear equation that represents this relationship? y=55x−125y is equal to 55 x minus 125 y=125x+55y is equal to 125 x plus 55 y=55x+125y is equal to 55 x plus 125 y=125x−55

Answers

Answer:

Step-by-step explanation:

Given Initial deposit = $125

If each moth $55 is being deposit, the balance each month will form an AP as shown;

125, 180, 235...

The nth term of the AP is expressed as;

y = a + (x-1)d

a is the first term = 125

d is the common difference = 180- 125 = 235-180 = 55

Substitute

y = 125 + (x-1)55

y =125+55x-55

y = 70+55x

y = 55x + 70

Mr. Accardi sold 600 tickets for the high school play. If adult tickets cost $6.00 each and student tickets cost $4.00 each, how many of each type of ticket did he sell if $2,900.00 was collected in ticket money?

Answers

Given:

Total number of tickets = 600

Cost of adult ticket = $6.00

Cost of student ticket = $4.00

Total sales = $2900.00

To find:

The number of tickets of each type.

Solution:

Let the number of adult tickets be x and number of student tickets be y.

According to the question,

[tex]x+y=600[/tex]        ...(i)

[tex]6x+4y=2900[/tex]      ...(ii)

Multiply equation (i) by 4 and subtract the result from (ii),

[tex]6x+4y-4(x+y)=2900-4\times 600[/tex]

[tex]6x+4y-4x-4y=2900-2400[/tex]

[tex]2x=500[/tex]

Divide both sides of 2.

[tex]x=250[/tex]

Put x=250 in (i).

[tex]250+y=600[/tex]

[tex]y=600-250[/tex]

[tex]y=350[/tex]

Therefore, number of adult tickets is 250 and number of student tickets is 350.

what is the least degree of a polynomial equation that has 3 (multiplicy of 4), -2, and 6i as roots

Answers

Answer:

-2

Step-by-step explanation:

Which of the following expressions is not equivalent to (-2)(8 +6+-3)?
(-2)(8 + 6) + (-2)(-3)
(-2)(8 + 6) + (-3)
(-2)(8) + (-2)(6) + (-2)(-3)
(-2)(8) + (-2)(6 +-3)
NEXT QUESTION
о
ASK FOR HELP
594

Answers

Answer:

[tex]b.)31\neq -22[/tex]

Step-by-step explanation:

Simplify each equation using PEMDAS:

Parentheses (x)

Exponents x²

Multiplication and Division, left to right × ÷

Addition and Subtraction, left to right - +

It is also important to follow PEMDAS when working within grouping symbols like parentheses.

Also, remember that two negatives make a positive, and when a negative and positive are multiplied, the result is always negative.

[tex](-2)(8+6+-3)\\\\-2*(8+6-3)\\\\-2*(14-3)\\\\-2*11\\\\-22[/tex]

Find which answer is not equal to -22.

a.) [tex](-2)(8+6)+(-2)(-3)\\\\-2*(8+6)-2*-3\\\\-2*14-2*-3\\\\-28-2*-3\\\\-28+6\\\\-22[/tex]

---------------------------------------------------

b.) [tex](-2)*(8+6)+(-3)\\\\-2*(8+6)-3\\\\-2*14-3\\\\-28-3\\\\-31[/tex]

---------------------------------------------------

c.) [tex](-2)(8)+(-2)(6)+(-2)(-3)\\\\-2*8-2*6-2*-3\\\\-16-2*6-2*-3\\\\-16-12-2*-3\\\\-16-12+6\\\\-28+6\\\\-22[/tex]

---------------------------------------------------

d.) [tex](-2)(8)+(-2)(6+-3)\\\\-2*8-2*(6-3)\\\\-2*8-2*3\\\\-16-2*3\\\\-16-6\\\\-22[/tex]

---------------------------------------------------

Option b is not equal to -22.

:Done

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