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
PSYCHO15rus [73]
3 years ago
8

a goldsmith combined an alloy that costs $4.40 per ounce with an alloy that costs $1.90 per ounce. how many ounces of each were

used to make a mixture of 200 oz costing $2.60 per ounce?
Mathematics
2 answers:
Naddik [55]3 years ago
4 0

4.4x + 1.9(200-x) = 520

4.4x +  380 - 1.9x = 520

x = 56


56 ounces of the $4.40 per ounce alloy

200 - 56 = 144 ounces of the $1.90 per ounce alloy

kirill115 [55]3 years ago
3 0
$76.92 is what the answer is
You might be interested in
What is the approximate length of arc s on the circle below? Use 3.14 for
ryzh [129]

The length of arc is 69.1 feet

<em><u>Solution:</u></em>

<em><u>The length of arc when angle given in degrees is given as:</u></em>

Arc\ length = \frac{ \theta }{360} \times 2 \pi r

Where,

r is the radius

\theta is the central angle in degrees

From given,

r = 12\ feet\\\\\theta = 330^{\circ}

<em><u>Substituting the values we get,</u></em>

Arc\ length = \frac{ 330 }{360} \times 2 \times 3.14 \times 12\\\\Arc\ length = \frac{ 330 }{360} \times 6.28 \times 12\\\\Arc\ length = 69.08 \approx 69.1

Thus the length of arc is 69.1 feet

5 0
3 years ago
Jim Smith is a word processor. He is paid $3.50 a page. A normal job has 500 pages and requires about 250 words per page. About
worty [1.4K]

Answer:

The correct answer will most likely be B. 1,750.00

Step-by-step explanation:

I just multiplied 3.50 by 500 to get my answer.

7 0
3 years ago
What is the value of x in the equation 2x+7=1
Lesechka [4]
First....we need to do inverse operation

Subtract 7 from both sides.

2x+7=1
    -7   -7

2x=-6

Now, we need to divide 2 by both sides to isolate x.

2x=-6
2x/2=-6/2
x=-3

Our final answer is that x= -3
3 0
3 years ago
Read 2 more answers
PLZ HELP ME QUICK AT THIS MATH PROBLEM QUICK
sukhopar [10]

Answer:

1. 30 houses were analyzed

2. 24 houses

3. 21 houses

4. Bimodal skewed right? IDK sorry :(

5. 15 houses

6. The fourth interval (151-200)

Sorry if this is wrong... Hope it helps!

Step-by-step explanation:

4 0
3 years ago
You have the following numbers: 1, 2, 3, 4, 5. Using these numbers, write at least 10 different mathematical expressions. Use at
masya89 [10]

Mathematical expressions allow us to relate numbers using mathematical symbols to make calculations. some examples are:

  • 2 + 3 = 5
  • 4 - 1 = 3
  • 2 × 2 = 4
  • 4 ÷ 2 = 2
  • 2² + 1 = 5
  • (1 + 2) + (2 × 1) = 5
  • (2 + 3) - 4 = 1
  • (2 + 2)² ÷ 4 = 4
  • (2 ÷ 4)² × 4 = 1
  • (2 + 2)² (4 ÷ 2) - (2 × 4)(5 - 1) + 5 = 5

<h3>What is a mathematical expression? </h3>

A mathematical expression is a sequence of characters that are intended to express a general relationship between the terms expressed in the formula.

Mathematical expressions generally have symbols like:

  • Add +
  • Subtraction -
  • Multiplication ×
  • Division ÷
  • Exponent x^{x}
  • Equal =
  • Parentheses ()

According to the above, some examples of mathematical expressions are:

  • 2 + 3 = 5
  • 4 - 1 = 3
  • 2 × 2 = 4
  • 4 ÷ 2 = 2
  • 2² + 1 = 5
  • (1 + 2) + (2 × 1) = 5
  • (2 + 3) - 4 = 1
  • (2 + 2)² ÷ 4 = 4
  • (2 ÷ 4)² × 4 = 1
  • (2 + 2)² (4 ÷ 2) - (2 × 4)(5 - 1) + 5 = 5

Learn more about mathematical expressions in: brainly.com/question/14712183

5 0
3 years ago
Other questions:
  • Question number 7 Give a reasonable domain and range for the function in this context
    5·1 answer
  • Answer quickly and explain and show work
    7·2 answers
  • Find the mean absolute deviation of the data set. {1, 1, 2, 3, 8}
    12·2 answers
  • [(48-16 Times 3/4 Times 1/2] Divided by(31-19)
    12·1 answer
  • The slope of the line below is to use the corners of the labeled point to find a point slope equation of the line.
    11·1 answer
  • Find the value of x in the isosceles triangle shown below.<br> 52<br> V52<br> 2
    6·1 answer
  • Help plz !!!!!!!!!!!!!!
    8·2 answers
  • Help me please. i've tried this so many times, writing it out, calculator. nothing's worked
    5·1 answer
  • Tina will roll the cube, spin the spinner, and flip the coin one time each to form an outcome.
    7·1 answer
  • SOMEBODY PLEASE PLEASE HELP
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!