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
Aleonysh [2.5K]
2 years ago
10

Brass is made up of copper and zinc. 100 grams of brass contains 20 grams of zinc.

Mathematics
1 answer:
Nana76 [90]2 years ago
5 0

Answer:

A.  12 grams Zn

B.  280 g of copper.

Step-by-step explanation:

100 grams of brass

20 grams of zinc

100 grams of brass has 20 grams of Zn.

20/100 = 0.200  Zn   <u>20% Zn  and 80% copper</u>.

A.  (60 g brass)*(0.2) = 12 grams Zn

B.  (350 g brass)*(0.80) = 280 g of copper.

You might be interested in
What is the slope of the equation?<br> y = 1/4x + 2
OLga [1]

Answer:

1/4

Step-by-step explanation:

4 0
3 years ago
Write an inequality for the graph
d1i1m1o1n [39]

the inequality for the graph is x<3

8 0
3 years ago
2w-6+w+5 how do you work this problem
sergejj [24]

You combine the numbers that have the same letter attached to them. Then you add or subtract the bumbers from each other to. After that you make the numbers and the numbers with letters into one equation

Ex: 13+5r+7r= 13+12r

Step-by-step explanation:

2w+w=3w If theres a letter by itself it means theres a 1.

6 0
3 years ago
Rectangle ABCD Is shown on the grid.
Sauron [17]
What is The area of A rectangle ABCD in square units is going to be p=a+b+c
7 0
4 years ago
Read 2 more answers
Marie and fe work in a flower shop 6 hours on weekend to add their daily allowance in school. They spends 2 1/3 hours for making
Shkiper50 [21]

Answer:

2 1/6 hours

Step-by-step explanation:

2 1/3 + 1 1/2 + x = 6

convert all mixed numbers to improper fractions

7/3 + 3/2 + x = 6/1

change all numbers to have a common denominator

14/6 + 9/6 + x = 36/6

combine like terms

23/6 + x = 36/6

subtract 23/6 from both sides

x = 13/6

convert improper fraction to mixed number

2 1/6

7 0
4 years ago
Other questions:
  • Find the distance between points A and C round to the nearest tenth.
    13·1 answer
  • Find the number to add to x2+8⁢x to make it a perfect square trinomial. Write that trinomial as the square of a binomial.
    5·1 answer
  • A local pet store buys cans of dog food for $0.43. They sell them for 65% more for profit. If a customer buys 14 cans of dog foo
    10·2 answers
  • Students in grades 7 and 8 were asked which food they liked the best. The results are shown in the table. What percentage of all
    6·1 answer
  • What is 3/4 divided by 3/5?
    5·2 answers
  • Solve each system by substitution.
    5·1 answer
  • I need help can someone tell me how to do this plz
    14·2 answers
  • HELP PLEASE I NEED THIS FOR MY TEST TODAY HELP
    9·2 answers
  • Solve these equations by using subtraction.
    12·1 answer
  • A dairy needs 336 gallons of milk containing 6% butterfat. How many gallons each of milk containing 7% butterfat and milk contai
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!