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
My name is Ann [436]
3 years ago
15

Simplify the expression -2(3z-4y)-z

Mathematics
1 answer:
Alex17521 [72]3 years ago
4 0
Multiply -2 by 3z and -4y
-6z + 8y -z
subtract z from -6z
-7z + 8y should be your answer
You might be interested in
Can someone explain the quadratic formula please?
brilliants [131]

Answer:

While factoring may not always be successful, the Quadratic Formula can always find the solution. The Quadratic Formula uses the "a", "b", and "c" from "ax2 + bx + c", where "a", "b", and "c" are just numbers; they are the "numerical coefficients" of the quadratic equation they've given you to solve.

source from: https://www.purplemath.com/modules/quadform.htm

your welcome!

6 0
3 years ago
For a production of sweeney todd in las vegas, orchestra seats cost $42 and mezzanine seats cost $25. if a group of 14 people sh
Lesechka [4]

Answer: 8 orchestra seats and 6 mezzanine seats.

Step-by-step explanation:

Let be "o" the number of orchestra seats they bought and "m" the number of mezzanine seats they bought.

Set up a system of equations:

\left \{ {{42o+25m=486} \atop {o+m=14}} \right.

You can apply the Substittution Method to solve the system of equations:

1. Solve for "o" from the second equation:

o=14-m

2. Substitute it into the first equation and solve for "m":

42(14-m)+25m=486\\\\588-42m+25m=486\\\\-17m=-102\\\\m=\frac{-102}{-17}\\\\m=6

3. Substitute the value of "m" into o=14-m and evaluate, in order to find the value of "o". This is:

o=14-6\\\\o=8

4 0
3 years ago
Look at the histogram below which data set could be represented by the histogram
Anon25 [30]

Answer:

Option 4 is correct

Step-by-step explanation:

Here, we want to select from the options, the dataset that is represented on the histogram

From what we have in the question, there is a range from 60 to 100

Also, there are no terms between 70 and 80

option 1 is wrong as we can see terms between 70 and 80

option 2 is also wrong for this reason

option 3 is incorrect ; looking at the frequency, the numbers between 60 and 70 should be 5 only and we have 6 in that set

Option 4 is the correct answer

4 0
3 years ago
Why does this happen?
ki77a [65]

Answer:

It is an exponential function

Step-by-step explanation:

With every growing value of x, it will multiply itself that many number of times.

6 0
2 years ago
What is the rate of the boat in still water and what is the rate of the current?
Alekssandra [29.7K]

Answer: 2mp

Step-by-step explanation: Let "b" represent the speed of the boat in still water

Let "c" represent the speed of the current

Let "t" represent time

Downstream(same direction) =(b+c)*t

Upstream(against current)=(b-c)*t

(b+c)*3=24

(b-c)*4=16

3b+3c=24....all sides can be divided by 3 =b+c=8

4b-4c=16.....all sides can be divided by 4 =b-c=4

Use Elimination method

b+c=8

b-c= 4 Subtracting

=====

2c=4

find c by dividing both sides by 2. c=2

if c=2, substitute to get b

b+2=8

 -2=-2

======

b=6

Speed of boat in still water =6mph

rate of current=2mp

4 0
2 years ago
Other questions:
  • The sum of the roots of the equation x 2 + x = 2 is:<br> A. -1<br> B. 0<br> C. 1
    12·2 answers
  • Q! and Q2 A fair six-sided dice has five red faces and one grey painted face. The spinner is spun. If the spinner shows an even
    8·1 answer
  • Find the value of x for which line a is parallel to line b. (21)
    12·1 answer
  • Zach is 6 inches shorter than two times his cousin's height, c. How tall is Zach?
    9·1 answer
  • I give a medal if you can figure this out fast! A certain forest covers an area of 4200 km2 . Suppose that each year this area d
    10·2 answers
  • Plz help!!!!!!!!!!!!!!
    14·1 answer
  • The expression sin57 is equal to
    12·1 answer
  • If you were babysitting, which would you rather: Charge $5 for the first hour and $8 for each additional hour? Charge $15 for th
    14·1 answer
  • Find the surface area of a rectangular prism with a
    12·1 answer
  • Over the last three evenings, Ivanna received a total of 116 phone calls at the call center. The third evening, she received 4 t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!