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
Rina8888 [55]
3 years ago
5

Evaluate the following expression using the values given: Find 3x − y − 3z if x = −2, y = 1, and z = −2.

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
4 0
The answer is -1. You can multiply 3 by -2 which is -6. Then y is, obviously, 1. 3z would equal -6 because 3 times -2 is -6. The final equation is: -6-1-(-6. -6 minus 1 1is -7. Then -7 minus -6 is -1 because a negative minus a negative will be a negative.
You might be interested in
Please help with this algebra problem
Zolol [24]
Number of games they won: W
Number of games they lost: L

They played 60 games:
(1) W+L=60

They won 24 more than they lost:
(2) W=L+24

We have a system ofr 2 equations and 2 unkowns:
(1) W+L=60
(2) W=L+24

Using the method of substitution. Replacing W by L+24 in the first equation:
(1) W+L=60
(L+24)+L=60
L+24+L=60
2L+24=60

Solving for L
2L+24-24=60-24
2L=36

Dividing both sides of the equation by 2:
2L/2=36/2
L=18

Replacing L by 18 in the second equation:
(2) W=L+24
W=18+24
W=42

Answers:
How many games did they win?  42
How many games did they lost?  18  
8 0
4 years ago
If it were two hours later, it would be half as long until midnight as it would be if it were an hour later. What time is it now
Leviafan [203]

Answer: its 21:00Hrs

Step-by-step explanation:

21:00

2 hours later (23:00 - 1 hour before midnight) is half the time until midnight as 1 hour later (22:00 - 2 hours before midnight).

4 0
3 years ago
At what speed is the oxygen consumption the same for a walker as it is for a runner?
pashok25 [27]
When x=14/5 the oxygen consumption the same for a walker as it is for a runner.
6 0
3 years ago
Write 4 87/100 as a decimal number
Sloan [31]

Answer:

4.87

A "1" can be written as 100/100. Since there is only 87/100 we are only 87% or 0.87 to a full 1

8 0
3 years ago
when 5 is subtracted from a certain number and the result divided by 6 the answer is equal to 4 .find the number
dangina [55]

Answer:

(x - 5) / 6 = 4

x - 5 = 24

x = 29

The Number is 29.

3 0
4 years ago
Other questions:
  • If u have 345 snakes and 100 escape 23 die and 200 u gave away how many do u have now?
    14·2 answers
  • 16.) A. B. C. Algebra 2 chapter 7
    5·1 answer
  • Chanita wants to swim the 21-mile English Channel in 48 hours. On the first day she swam 9 miles and then was picked up by a fer
    15·1 answer
  • Rewrite this expression as a single power 12^5•12^7/-12^4
    9·1 answer
  • A store offers a 15% discount on a skirt. If Bernice pays $40.80 for the skirt, what was the list price of the skirt before the
    13·2 answers
  • Determine the measure of ZA.<br><br> 45.6°<br> 57.7°<br> 55.2°<br> 32.3°
    9·1 answer
  • Adding a Sales Tax: You are purchasing a board game.
    9·1 answer
  • Need help to solve x²=256
    10·2 answers
  • 50 pts please help asap
    12·1 answer
  • Pudding has 120 calories in 2 ounces. How many calories are in 8 ounces of the pudding?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!