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
Vinvika [58]
3 years ago
10

How can I solve (b)?

Mathematics
1 answer:
dsp733 years ago
5 0
90/3 parts of silver = 30 times multiplied by
tin = 12 × 30 = 360g
lead = 8 × 30 = 240g

12.5 / 23 = 0.5434 parts per metal

tin = 12 × 0.5434 = 6.5kg
lead = 8 × 0.5434 = 4.5kg
silver = 3 × 0.5434 = 1.5kg
You might be interested in
Part A: Larry earned $11 walking his neighbors' dogs on Saturday. He earned some extra money on Sunday doing the same thing. Wri
djyliett [7]
So for part a the answer with be 11/6
Why 6 because count the weeks that wil be 6 so Monday Tuesday Wednesday thursaday and Friday then comes Saturday
3 0
3 years ago
Read 2 more answers
Can someone help me ?
prisoha [69]
I’m pretty sure there are infinite solutions as the system of equations are equivalent to each other.
7 0
3 years ago
Read 2 more answers
Simplify the expression using trigonometric identities: sec (–θ) – cos θ.
ololo11 [35]

Answer:

sin θ . tan θ

Step-by-step explanation:

Note : -

sec ( - θ ) = sec θ

Formula / Identity : -

sec θ = 1 / cos θ

sec ( - θ ) - cos θ

= [ 1 / cos θ ] - cos θ

{ LCM = cos θ }

= [ 1 / cos θ ] - [ cos²θ / cos θ ]

= [ 1 - cos²θ ] / cos θ

{ 1 - cos²θ = sin²θ }

= sin²θ / cos θ

{ sin²θ = sin θ . sin θ }

= sin θ . sin θ / cos θ

{ sin θ / cos θ = tan θ }

= sin θ . tan θ

Hence, simplified.

4 0
2 years ago
What are the ordered pairs of thesolutions for this system of equations? f(x) = x^2 – 2x + 3; f(x) = -6x
babunello [35]

First you subtract the two equations

x^2-2x+3-6x

You simplify that and get

x^2+4x+3 = 0

Now we solve using the quadratic formula.

We get x = -1 and x = -3.

Now we find the y values by plugging the x values into the equation.

f(x) is the same as y.

y = (-1)^2 - 2(-1) + 3

y = 1+2+3

y = 6

Now for the other x value.

y = (-3)^2 - 2(-3) + 3

y = 9+9

y = 18

So the two ordered pairs are (-1,6) and (-3,18)

8 0
2 years ago
Look at the picture ASAP
goldenfox [79]
Using the Laws of Cosine, we obtain C^2 = 55^2+108^2-2(108)(55)*cos(59), which c approximately equals 153.44. So Line AB ≈ 153.44 meters.  
8 0
3 years ago
Other questions:
  • If a woman making $45 an hour gets a 10% eaise how much additional money is she making.
    15·1 answer
  • What's the area and perimeter
    11·1 answer
  • in class of 40 students report that english is their favorite class 40 percent of the students report that keyboard is there fav
    10·1 answer
  • What the percent of a puppy that weighs 2 pounds at birth and 5 pounds when one month
    8·1 answer
  • 2. Oranges cost $x per kilogram and apples cost $(x - 0.6) per kilogram. The total cost of 2 kg of oranges
    14·1 answer
  • What is the slope of this line?
    10·1 answer
  • The length of a rectangle is 3 m longer than its width.
    14·2 answers
  • PLEASE HELP!!!!!!<br><br> I really need help on this! It's due today and I'm kinda late on it!!
    7·1 answer
  • 5 3/8 - 2 1/8 = (make sure you simplify the fraction)
    15·1 answer
  • What are the answers for 3(8 + 2) - 6² ÷ 9 + 8 and 6 + (5 - 3) · 3² ÷ 9 – 7<br> please show work!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!