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
Snowcat [4.5K]
3 years ago
6

A jeweler had a fixed amount of gold to make bracelets and necklaces. The amount of gold in each bracelet is 6 grams and the amo

unt of gold in each necklace is 16 grams. The jeweler made a total of 7 bracelets and necklaces using 72 grams of gold. Determine the number of bracelets made and the number of necklaces made.
Mathematics
1 answer:
IgorC [24]3 years ago
6 0

Answer: he made 4 bracelets and 3 necklaces.

Step-by-step explanation:

Let x represent the number of bracelets made.

Let y represent number of necklaces made.

The jeweler made a total of 7 bracelets and necklaces. This means that

x + y = 7

The amount of gold in each bracelet is 6 grams and the amount of gold in each necklace is 16 grams. The total amount of gold used was 72 grams. This means that

6x + 16y = 72 - - - - - - - - - - - - 1

Substituting x = 7 - y into equation 1, it becomes

6(7 - y) + 16y = 72

42 - 6y + 16y = 72

- 6y + 16y = 72 - 42

10y = 30

y = 30/10

y = 3

x = 7 - y = 7 - 3

x = 4

You might be interested in
Dinah went out to eat at a restaurant. She wants to leave the waitress a tip of 18%. She can determine the amount she should pay
hoa [83]

Answer:

C. 1.18b

Step-by-step explanation:

Hi! Ace here!

In order to do this, we have to convert 18% into a decimal.

The decimal form of it is .18.

So we have to do

b+.18b

Combine like terms:

1.18b

I hope this helped

6 0
3 years ago
Read 2 more answers
Use t = 3 and t = 7 to determine if 6t + 12 and 6(t + 2) are equivalent. Which statements are true? Check all that apply.
kobusy [5.1K]

Answer:

1. false

2. false

3. true

4. true

5. true

6. false

Step-by-step explanation:

1. The value of the first expression when t = 3 is not equal to the value of the second expression when t = 3.

2. The value of the first expression when t = 7 is not equal to the value of the second expression when t = 7.

3. The value of both expressions when t = 3 is 30.

4. The value of both expressions when t = 7 is 54.

5. The expressions are equivalent.

6. The expressions are not equivalent.


6t + 12 = 6(t + 2)

6(3) + 12 =6((3) + 2)

18 + 12 = 6(5)

30 = 30

6(7) + 12 = 6((7) + 2)

42 + 12 = 6(9)

54 = 54

3 0
3 years ago
Read 2 more answers
The product of 26 X 93 is greater than 25 X 93. How much greater? Explain how you know without multiplying.
evablogger [386]

wouldn't it just be because 26 i greater then 25 there for aking 26x93 greater then 25x93

4 0
3 years ago
For the problem -4(-5)(9), will the answer be positive or negative?
Scorpion4ik [409]

Answer:

Positive

Step-by-step explanation:

-4(-5)(9)

Negative cancels out negative, so it makes a positive:

20(9)

Simplify normally to get 180 as your final answer.

8 0
2 years ago
An amateur radio operator erects a 75-foot vertical tower for an antenna. A 117 guy wire is pulled from the top of the tower dia
vitfil [10]

Answer:

α=39.80°

Step-by-step explanation:

applying the law of sin and cos, we have:

sin\alpha =\frac{75}{117}=0.6410\\\alpha =acs(0.64)= 39.79

and to the nearest tenth of a degree

α=39.80°

3 0
3 years ago
Other questions:
  • Find all solutions to 0= 2x^4+5x^3+38x^2+125x-300
    13·1 answer
  • Find the vertex of the given quadratic function.
    11·1 answer
  • How much would $300 invested at 7% interest compounded continuously be
    7·1 answer
  • What is 63:28 reduced
    12·1 answer
  • The sum of 4 consecutive integers is 122. What is the third number in this sequence?
    13·1 answer
  • PRACTISE NOW 11
    8·1 answer
  • Hat are the intercepts for the equation? Select all that apply. 2x + 3y = 6 *
    14·1 answer
  • Are the expressions 3(x + y) + 2y + 10 and x + 5y + 2(x + 5) equivalent?<br><br> PLEASE HURRY
    11·1 answer
  • Consider the graph for Question #4. This represents the temperature change over a period of time on a single day.
    13·1 answer
  • Which of the following is equivalent to x^5y^2/xy^2 when x is not equal to 0 and y is not equal to 0
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!