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3 years ago

What would you do to isolate the variable in the equation below, using only one

Mathematics

2 answers:

weeeeeb [17]3 years ago

8 0

Subtract 9 from both sides of the equation

sladkih [1.3K]3 years ago

3 0

Answer:

O Subtract 9 from both sides of the equation.

Step-by-step explanation:

Notice that on the left hand side of the equation, you have two parts: X and 9. The variable is X, so we must do something to the 9 to remove it. Remember that we can cancel things by adding the negative of it. For example, 47+(-47)=0. Therefore, the opposite of 9 is -9. That essentially means subtracting 9.

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A total of 399 tickets were sold for the school play. They were either adult tickets or student tickets. The number of students

weqwewe [10]

133 adult tickets were sold.

Step-by-step explanation:

Given,

Total tickets sold for school play = 399

Let,

x represent the number of children tickets sold.

y represent the number of adult tickets sold.

According to given statement;

x+y=399 Eqn 1

x = 2y Eqn 2

Putting value of x from Eqn 2 in Eqn 1

$2y+y=399\\3y=399$

Dividing both sides by 3

$\frac{3y}{3}=\frac{399}{3}\\y=133$

133 adult tickets were sold.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

4 0

3 years ago

What is the area, in square units, of the parallelogram? 12 18 24 36

uysha [10]

24, because area means to multipy and it gives 6 ins. and 4 ins. so 6x4 is 24. Hope I was helpful.

4 0

3 years ago

The length of a rectangle is twice its width. The length is 4 1/2 feet. What is the area of the rectangle in square feet?

MA_775_DIABLO [31]

Answer:

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Step-by-step explanation:

8 0

3 years ago

Select the BEST classification for sq. root 25 . A) irrational B) rational C) imaginary Eliminate D) complex

tatuchka [14]

Answer:

B. Rational

Step-by-step explanation:

the square root of 25 is 5. 5 best fits the classification of rational

4 0

3 years ago

Can someone solve this

Natalka [10]

Option D:

ΔCAN ≅ ΔWNA by SAS congruence rule.

Solution:

Given data:

m∠CNA = m∠WAN and CN = WA

To prove that ΔCAN ≅ ΔWNA:

In ΔCAN and ΔWNA,

CN = WA (given side)

∠CNA = ∠WAN (given angle)

NA = NA (reflexive side)

Therefore, ΔCAN ≅ ΔWNA by SAS congruence rule.

Hence option D is the correct answer.

4 0

3 years ago