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
vredina [299]
3 years ago
7

How can you decide which variable to solve for first when you are solving a linear system by substitution

Mathematics
1 answer:
Helen [10]3 years ago
7 0
There are many factors, it is all a matter of preference, normally, you want to try to solve for the easiest one to get to
example

if y ou had

(x-3)^2+y=9
you would solve for y becuase it is less tricky

it is all a matter of preference
You might be interested in
Solve x3 = 64 over 27
Fiesta28 [93]

Answer:

x= 4/3

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Joyce makes bead bracelets and necklaces and sells them to a store. She charges $5.00 for a bracelet, and $8.00 for a necklace.
stira [4]
B. 6 Bracelets, 12 Necklaces
7 0
3 years ago
Consider U = {x|x is a real number}. A = {x|x ∈ U and x + 2 > 10} B = {x|x ∈ U and 2x > 10} Which statements are true? 5 ∉
-Dominant- [34]

x+2 > 10 solves to x > 8 after we subtract 2 from both sides

So set A is the set of real numbers that are larger than 8. The value 8 itself is not in set A. The same can be said about 5 as well.


Set B is the set of values that are larger than 5 since 2x > 10 turns into x > 5 after dividing both sides by 2. The value x = 5 is not in set B since x > 5 would turn into 5 > 5 which is false. The values x = 6, x = 8, and x = 9 are in set B.


----------------


Summarizing everything, we can say...

5 is not in set A. True

5 is in set B. False

6 is in set A. False

6 is not in set B. False

8 is not in set A. True

8 is in set B. True

9 is in set A. True

9 is not in set B. False


5 0
3 years ago
Read 2 more answers
Convert 80 km per hour and 120 km per hour to meters per second​
Burka [1]

hi brainly user! ૮₍ ˃ ⤙ ˂ ₎ა

⊱┈────────────────────────┈⊰

\large \bold {ANSWER}

  • \large \boxed { \large \sf \green{ 80 km/h = 22.22 m/s }}
  • \large \boxed { \large \sf \green{ 120 km/h = 33.33 m/s }}

\large \bold {SOLUTION}

The first thing we must do is convert kilometers to meters. We will do this by multiplying by 1,000, since 1 km corresponds to 1,000 meters.

  • 80*1000 = 80,000
  • 120*1000 = 120,000

Now that we've done that, let's divide the values by 3,600, because an hour is 60 minutes, and each minute is 60 seconds, so 60*60 is 3,600.

\frac{80.0\not0\not0}{3.6\not0\not0}=22.22

\frac{120.0\not0\not0}{3.6\not0\not0}=33.33

Hence, 80 km/h = 22.22 m/s, 120 km/h = 33.33 m/s

8 0
2 years ago
Read 2 more answers
The area of a square piece of cardboard is 81 square inches. What is the length of the cardboard
vredina [299]
9 because the square root of 81 is 9
6 0
3 years ago
Other questions:
  • If you divide a fraction by 1/2, and the result was a mixed numbers. Was the original fraction less or greater than 1/2
    15·1 answer
  • 56%? Answer choices A. 1/25 B. 0.004 C. 40 D. 2/5
    12·1 answer
  • What is a rectangle?
    6·2 answers
  • Maddie has a retangular garden in her backyard. The perimeter of the garden is eighty-two feet. The width is five shorter than t
    10·1 answer
  • What is the anwser to 8h times $9/h and what is the ratio units
    13·1 answer
  • What is the reciprocal of 7 1/3? whats the reciprocal?<br>​
    14·2 answers
  • Imagine you have m distinct baskets in which you’re throwing n number of balls at random. Each throw is independent of any other
    10·1 answer
  • Rahim was asked to make p the subject of this formula
    15·1 answer
  • Find the distance between the points​
    5·1 answer
  • The cost to enter the fair is $9. Rides cost $5 each. Write the equation to represent this problem.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!