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
solong [7]
3 years ago
13

a system of equations is shown below: equation a: 2c = d − 8 equation b: c = 3d 8 which of the following steps should be perform

ed to eliminate variable d first? multiply equation b by 2. multiply equation a by 2. multiply equation b by 3. multiply equation a by −3.
Mathematics
1 answer:
Fofino [41]3 years ago
3 0
If you would like to know which of the following steps should be performed to eliminate variable d first, you can find this using the following steps:

equation a: 2c = d - 8      /*(-3)
equation b: c = 3d + 8
__________________
-6c = -3d + 24
c = 3d + 8
__________________
-6c + c = -3d + 24 + 3d + 8
-5c = 32
5c = -32
c = -32/5

<span>The correct result would </span>be: <span>multiply equation a by −3.</span>
You might be interested in
Students in a high school woodworking class wants to conduct a survey to determine the percentage of students in the school who
Karo-lina-s [1.5K]

Answer:

a) cluster sampling

Step-by-step explanation:

In cluster sampling method, each member of a population is assigned to one and only one group.This means clusters are formed through probability method usually a simple random sampling.The participants in the clusters are the only one to be surveyed.

In this example,  simple random sampling is used to identify 12 home rooms(cluster) where a group of 20 students (participants) in each room is given the survey.

4 0
3 years ago
Roger made a table showing how he spent his time in one day. How many days
Kazeer [188]

Answer:

3 days will pass

Step-by-step explanation:

work 24×1/3=8

sleep 24×3/8=9

meals 24×1/8=3

computer 24×1/6=4

reach up to 24 with sleep

9+9+9=27

which took a little over 3 days

5 0
3 years ago
How many solutions does this system
mr Goodwill [35]
The answer is B.) one




Hope this helps :)
5 0
3 years ago
If side AB is parallel to side DC, how are side A'B' and side D'C' related? Explain.
anastassius [24]
Side A’B’ and D’C’ are related because they are both parallel which I think means that they would be the same length
7 0
3 years ago
The number of bacteria, b, in a refrigerated food is given by the function b(t) = 15t2 − 60t + 125, where t is the temperature o
s344n2d4d5 [400]
The answer of the above is
7 0
3 years ago
Other questions:
  • Simplify. Write answers with positive exponents only.
    5·1 answer
  • David currently has $270 in his bank account and
    9·2 answers
  • Need help with this
    10·2 answers
  • A cafeteria used 5 gallons of milk and preparing like how many 1 quart containers of milk did the cafeteria use
    5·2 answers
  • Help? Does anyone can solve this?
    9·1 answer
  • Find the length of the leg. If you’re is not an integer leave it in simplest radical form?
    9·1 answer
  • Pls help I’ll brainlest for the right answer
    15·1 answer
  • Look at the picture below to help. pls
    8·1 answer
  • You want to buy a book the book is 8.50 but 24% off. How much will the book with 8% tax included?
    7·1 answer
  • HELP NO LINKS PLS PLS
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!