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
kykrilka [37]
3 years ago
8

In a certain chemical, the ratio of zinc to copper is 4 to 11. A jar of the chemical contains 418 grams of

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

Answer:

Step-by-step explanation:

Zinc:copper = 4:11

Amount of zinc = 4x

Amount of copper = 11x

11x = 418

x = 38 grams

Amount of zinc = 4x = 152 grams

You might be interested in
El reloj de Nuestra Basílica de Chiquinquirá señala cada hora con igual número de campanadas. Para indicar las 6 a.M. Tocó 6 vec
GenaCL600 [577]

Answer:

El reloj de Nuestra Basílica de Chiquinquirá empleará 20 segundos para indicar las 8 a.m.

Step-by-step explanation:

De acuerdo a la información proporcionada, sabes que el reloj de Nuestra Basílica de Chiquinquirá señala cada hora con igual número de campanadas, por lo que a las 8 a.m. tocará 8 campanadas y puedes usar una regla de tres para encontrar cuantos segundos empleará en hacerlo dado que conoces que las 6 campanadas se demoran 15 segundos:

6 campanadas → 15 segundos

8 campanadas →         x

x=(8*15)/6

x= 20

De acuerdo a esto, la respuesta es que el reloj de Nuestra Basílica de Chiquinquirá empleará 20 segundos para indicar las 8 a.m.

4 0
3 years ago
After Hillary realized her clock was running 30 minutes fast, she used a knob on the clock to turn the minute hand back 30 minut
iragen [17]

Answer:

Counterclockwise rotation

Step-by-step explanation:

It’s counter clockwise rotation because The clock was 30minutes faster , so she turned the minute hand backwards to correct the clock. Counterclockwise is opposite of clockwise

8 0
3 years ago
Read 2 more answers
Use the law of Sines to find the missing angle of the triangle. <br> Find m
Whitepunk [10]
Ah...Trigonometry is fun!

The law of sines states:
\frac{sinA}{a}= \frac{sinB}{b} = \frac{sinC}{c}
The transitive property (switching the orders of the equations) applies here. Therfore, we can say that \frac{sinA}{a}=\frac{sinC}{c}

We then plug in our given values to find C

\frac{sin24}{77}=\frac{sinC}{162}
\frac{162*sin24}{77}=sinC
Solving, we get 0.8557316387. We're not done yet!

We are trying to find an angle measure, so we'll do the inverse of the ratio we used (sin).

arcsin0.8557316387 (arcsin is the same as inverse sin)
=58.8 (approximate)

So the measure of angle C is 58.8. You could check this by reinserting it into the equation \frac{sinA}{a}= \frac{sinB}{b} = \frac{sinC}{c}.

:)
6 0
3 years ago
May you please answer this question i tried to answer but failed miserably
s2008m [1.1K]

Answer:

I think it is postive

7 0
3 years ago
When Kevin plays chess with Aaron, the probability that Kevin wins is 0.75. If Aaron and Kevin play 25 games, what is the probab
iren2701 [21]
Assuming this is a binomial distribution, P(x=15) = 0.0416
5 0
3 years ago
Other questions:
  • WHAT IS THE SLOPE OF GRAPH THAT HAS A Y INTERCEPT OF 300 AND X INTERCEPT OF 450
    12·1 answer
  • You run at a pace of 8.5 minutes per mile in a 26.2 mile marathon. How many minutes will it take finish?
    7·1 answer
  • Which expression can be used find 40% of 130?
    8·2 answers
  • The large sphere has a diameter of 20 feet. which expression represents the volume, in cubic units, of the shaded part of the sp
    10·2 answers
  • If the slope of a line is 3, then what is the value of n when (2, -8) and (n, 1) are on the line?
    9·1 answer
  • How do I solve this ? Where do I start?
    9·1 answer
  • Which of the following is most likely an impact of wildfires?
    11·2 answers
  • D over 12 when d= 36
    10·2 answers
  • The junior class at Summerfield High School sold a total of 375 tickets for their spring festival. The adult tickets sold for $7
    12·1 answer
  • Find the value of 4 2 + 6 ÷ 2.<br><br> 7<br> 11<br> 19
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!