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
Nat2105 [25]
3 years ago
7

1 The metal used to make a coin is a mixture of steel and copper. The ratio mass of steel

Mathematics
1 answer:
Masteriza [31]3 years ago
7 0

\huge{ \underline{ \underline{ \gray{ \bf{Solution:}}}}}

Let,

  • Mass of the steel be 108x
  • Mass of the copper be 7x
  • Then, Total mass = 108x + 7x = 115x

Given,

  • Total mass of the coin = 230 mg

That means,

⇛ Total mass of the coin = 230 mg

⇛ 115x = 230 mg

⇛ x = 230 mg/115

⇛ x = 2 mg

Then,

  • Mass of the steel = 108(2) = 216 mg
  • Mass of the copper = 7(2) = 14 mg

☁️ ANSWER - 14 mg (Mass of copper)

<u>━━━━━━━━━━━━━━━━━━━━</u>

You might be interested in
Mandy has a 10.2-ounce container of mustard. She uses 130 of the mustard to put on her hot dog each time. How many ounces of mus
Marianna [84]

Answer:

x

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Solve for the 3 sides
mel-nik [20]

Answer:

1. x = 2√3 or 3.46

2. y = 4√3 or 6.93

3. z = 4√6 or 9.80

Step-by-step explanation:

1. Determination of the value of x.

Angle (θ) = 60°

Opposite = 6

Adjacent = x

Tan θ = Opposite /Adjacent

Tan 60 = 6 / x

√3 = 6/x

Cross multiply

x√3 = 6

Divide both side by √3

x = 6 / √3

Rationalise

x = (6 / √3) × (√3/√3)

x = 6√3 / 3

x = 2√3 or 3.46

2. Determination of the value of y.

Angle (θ) = 60°

Opposite = 6

Hypothenus = y

Sine θ = Opposite /Hypothenus

Sine 60 = 6/y

√3/2 = 6/y

Cross multiply

y√3 = 2 × 6

y√3 = 12

Divide both side by √3

y = 12/√3

Rationalise

y = (12 / √3) × (√3/√3)

y = 12√3 / 3

y = 4√3 or 6.93

3. Determination of the value of z.

Angle (θ) = 45°

Opposite = y = 4√3

Hypothenus = z

Sine θ = Opposite /Hypothenus

Sine 45 = 4√3 / z

1/√2 = 4√3 / z

Cross multiply

z = √2 × 4√3

z = 4√6 or 9.80

8 0
3 years ago
The area of triangle PQR is 273 cm. Given that PQ = 12.8cm and PQR = 107°, find QR.​
storchak [24]

\text{Area of triangle} = \dfrac 12 \times PQ \times QR \times  \sin \angle PQR \\\\\\\implies  273= \dfrac 12 \times 12.8 \times QR \times \sin 107^{\circ}\\\\\implies 273 = 6.4 \sin 107^{\circ}  \times QR\\\\\\\implies QR = \dfrac{273}{6.4 \sin 107^{\circ}} = 44. 606~~ \text{cm}

8 0
2 years ago
Which situatioWhich situation does NOT describe a final value of 0?
kati45 [8]

Answer:

<em><u>A </u></em><em><u>.</u></em> A balloon rose to a height of 605 feet above the ground. It then dropped 500 feet and then dropped another 105 feet.

8 0
3 years ago
BEST ANSWER GETS BRAINLIEST For the expression 6 − y + 3, determine the coefficient for the variable term
Burka [1]

1. The answer would be -1 because the variable term is -y which can also be written as -1y and the coefficient is the number before the variable.

2. The answer would be 19. If you plug 3 into the equation for x you would get 4 + 5(3). Five times three is 15, and 15 plus 4 is 19.

6 0
3 years ago
Other questions:
  • Can anyone help me solve this problem its called life its a tricky one
    8·2 answers
  • What is the area of this trapezoid?<br><br> 50 in²<br><br> 108 in²<br><br> 126 in²<br><br> 192 in²
    10·2 answers
  • Simplify 3^0. Simplified form: ______
    7·2 answers
  • The local amusement park charges $19.95 per person. However after 5pm the charge is reduced to $15.40 per person a group of 4 ad
    15·2 answers
  • Mr. Tuyen uses 5/8 of a tank of gas each week to drive to and from his job. How many tanks of gas does Mr. Tuyen use in 5 weeks?
    8·1 answer
  • Last year there were two hundred and forty seven thousand, three hundred and seventy two weddings in the UK.
    7·2 answers
  • The graphs of the equations 4x - y = 6 and x + y = 4 intersect at
    12·1 answer
  • Find the volume. Use 3.14 for straight pi. Round to the nearest hundredth if necessary.
    6·1 answer
  • What does e-waste or electronic waste not include?
    8·1 answer
  • What are the measures of Angles a, b, and c? Show your work and explain your answers. (10 points)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!