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
ArbitrLikvidat [17]
4 years ago
13

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

Mathematics
1 answer:
makvit [3.9K]4 years ago
4 0

Answer:

The variable having largest coefficient is solved first.

Step-by-step explanation:

The variable having greater coefficient is solved first because we can substitute the value of smaller coefficient variable easily as compared to the greater one.

Because in substitution method we first substitute the value of coefficient which has smallest coefficient and as a result the coefficient with greater coefficient is solved.


You might be interested in
Item marked price 900Rs and sold at 700. What is Discount percentage
iren2701 [21]

I HOPE IT WILL HELP YOU.

SORRY IF IT IS WRONG .

<em>Thank</em><em> </em><em>you</em><em>.</em><em> </em>

3 0
3 years ago
death valley has an elevation of -282 feet to relative to sea level.Explain how to use absolute value to describe the elevation
Vanyuwa [196]
Absolute value is the distance from a value to zero. In this case, it'd be written as   | -282 |. If x = | -282 |, then x = 282
5 0
4 years ago
Eight is 34 more than the product of a number and 2 in number form
andre [41]

Answer:

8 = 34 + (n * 2) / 8 = (n * 2) + 34 ; n = -13

Step-by-step explanation:

In this question we have 2 numbers and a variable. The variable is "a number," which I have represented as "n" in my answer. As long as there is a letter in the spot of n, that is the correct answer- your assignment might have represented the variable differently.

When the question says "8 is" it is saying "8 is equal to." "Is" represents an equals sign in this equation. "More than" represents addition, or the sum of. "The product of" represents multiplication. "The product of a number and 2" means that we are multiplying n and 2 BEFORE adding it to 34, so we want to make sure to include those in parenthesis to signify that we do indeed solve that part of the equation first. As long as you know PEMDAS you should be fine here, but I prefer to add what the equation wants me to do first in parenthesis so that it's more readable. Since the order of numbers doesn't matter in addition, 34 can go both before and after "the product of n and 2."  

This gives us the equation "8 = 34 + (n * 2)," or the alternate "8 = (n * 2) + 34."

If you want to solve for N, you would need to subtract 34 from 8 and 34 itself, leaving -26 = (n * 2) or -26 = n(2). Then, since we're multiplying n by 2, we want to divide 2 by 2 to cancel it out, doing the same thing to -26. We are left with -13 = n, or n = -13.

3 0
3 years ago
Find the area of the trapezoid by decomposing it into other shapes. A). 25. B). 25.5. C). 27.5. B). 35
UkoKoshka [18]

Answer:

C) 27.5

Step-by-step explanation:

C) 27.5

4 0
3 years ago
Read 2 more answers
A financial analyst has determined that there is a 23 % probability that a mutual fund will outperform the market over a 1 -year
iVinArrow [24]

Answer:

23%

Step-by-step explanation:

If in any year there is a 12% chance that a mutual fund will outperform the market, that is in a mutually exclusive situation where the previous years performance is not considered. In this situation where trying to calculate the probability of a mutual fund outperforming the market 2 years in a row, the answer will be 23% as according to the calculations done by the financial analyst where the probability is calculated in a situation dependent on the previous years performance.

5 0
3 years ago
Other questions:
  • How many pounds of ground beef are needed to make 80 hamburger patties if each uncooked patty weighs 4.8 ounces?
    7·1 answer
  • Angles a= 3x + 5 b= 5x - 18. C= 7x - 2
    5·1 answer
  • Please help with this question
    10·1 answer
  • Simplify the expression (x)^3(x^3y)^2
    12·1 answer
  • One side of a rectangle is 9 inches and the other side is x inches. What values of x will make the perimeter at most 46? a x &lt
    7·1 answer
  • Fill in the blank so that the ratios are equivalent. 3:9 and 6:​
    6·2 answers
  • Angle a=126°. What is the measure of angle b? Explain how you calculated your answer.
    6·1 answer
  • rick spent 20% of his monthly salary on rent, 25% of the remainder he spent on food and saved the rest. If he saved $600 each mo
    7·2 answers
  • When proving the Pythagorean Theorem, we use the given diagram. What is the area of the big square?
    13·1 answer
  • Can you please help me please i need real people not robots
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!