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
MakcuM [25]
2 years ago
11

Luis was hired to make some jewelry for a special occasion. He needs to make the jewelry out of an alloy that is 54%silver and h

e requires 10 ounces. He has a large amount of 45% silver and also some that is 75% silver. How many ounces of 45% silver and 75% silver does he need?
Mathematics
1 answer:
AleksAgata [21]2 years ago
8 0

9514 1404 393

Answer:

  • 3 ounces of 75%
  • 7 ounces of 45%

Step-by-step explanation:

Let x represent the number of ounces of 75% silver needed. Then (10-x) is the number of ounces of 45% silver. The total silver required is ...

  0.75x +0.45(10 -x) = 0.54(10)

  0.30x +4.5 = 5.4

  0.30x = 0.9

  x = 0.9/0.3 = 3 . . . . . ounces of 75% silver

  10-x = 7 . . . . . ounces of 45% silver

Luis needs 7 ounces of 45% silver and 3 ounces of 75% silver.

You might be interested in
Six minus a number divided by 3 equals 8. What is the number?
Gre4nikov [31]

Answer:

-18

Step-by-step explanation:

let n be the number

(6-n)/3 = 8

6-n = 24

6-24 = n

-18 = n

5 0
3 years ago
Read 2 more answers
The width and the length of a rectangle are consecutive even integers. If the width is decreased by 3 inches, then the area of t
Radda [10]
37.......................................
7 0
3 years ago
Read 2 more answers
-5 = x divided by 2.4
snow_tiger [21]

Answer:

x=12

Step-by-step explanation:

-5= x/2.4

multiply both sides by 2.4 to isolate x

-5*2.4= (x/2.4)*2.4

12=x

5 0
3 years ago
- the following functions.
77julia77 [94]

Answer:

(f+g)(1)

equals

3

Step-by-step explanation:

(f+g)(1) is f(1)+g(1).

f(1) means what y corresponds to x=1 so f(1)=-1.

g(1) means what y corresponds to x=1 so g(1)=4.

So (f+g)(1)=f(1)+g(1)=-1+4=3.

4 0
3 years ago
Billy’s Boat Rentals charges a yearly fee of $105 and $9.50 each time a member wants to rent a boat. Lisa’s Boat Rentals does no
AlekseyPX

Answer:

20 times

Step-by-step explanation:

The equation is...

9.5x+105=14.75x

105=5.25x

20=x

5 0
3 years ago
Read 2 more answers
Other questions:
  • Ethan bought 4 greeting cards for $12 which proportion can be used to find p the price for nine of the same cards
    14·1 answer
  • How do you write 3,246.78 in expanded form using base 10
    13·1 answer
  • [02.05] Solve for x: −3x + 3 < 6
    10·2 answers
  • Find the value of x.
    13·1 answer
  • What is the area of the figure
    15·1 answer
  • What line model matches the expression
    11·1 answer
  • This is urgent I need help!
    12·1 answer
  • Which quantity is proportional to 20/5?
    9·2 answers
  • What multiplies to give you 15 and adds to give you -8?
    5·2 answers
  • Which words can be used as subjective pronouns? (1 point) O her, us Omine, yours O they, you O his, them​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!