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NISA [10]
3 years ago
9

Write a system of equations to describe the situation below, solve using any method, and fill in the blanks.

Mathematics
1 answer:
REY [17]3 years ago
3 0

Answer:

the first number is 3.4 and the second number is 1

Step-by-step explanation:

The computation of the two numbers is shown below:

Let us assume the first number be x

And, the second number be y

Now the equations are

5x + 4y = 21

And,

5x + 9y = 16

Now subtract equation 2 from equation 1

-5y = -5

y = 1

And, the x is

5x + 4 = 21

5x = 17

x = 3.4

Hence, the first number is 3.4 and the second number is 1

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Sam has the lead role in the school play. He still has to memorize 1/2 of his lines. Suppose Sam memorizes 1/3 of his lines toda
DaniilM [7]

Answer: 1/6

Step-by-step explanation:

Since Sam has to memorize 1/2 of his lines and he memorizes 1/3 of his lines today, the fractions of his lines that he has left to memorize will be gotten by subtracting 1/3 from 1/2. This will be:

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= 1/6

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3 years ago
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In triangle ABC, m∠ABC = (4x – 12)° and
VashaNatasha [74]

The value of ∠ABC is 64 degree at x = 19 degree ,therefore Yin is not right about the value of x .

<h3>What is a Triangle ?</h3>

A triangle is a polygon with three sides , angles and vertices.

It is given that

m∠ABC = (4x – 12)°

m∠ACB = (2x + 26)°

Let m∠ACB = y degree

It is asked that if x =19 degree , is the triangle equilateral

m∠ABC = (4x – 12)° = 4 *19 -12 = 64 degree

As in an equilateral triangle , the angles are all equal and equal to 60 degree.

If the value of ∠ABC is 64 degree at x = 19 degree ,therefore Yin is not right about the value of x .

To know more about Triangle

brainly.com/question/2773823

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8 0
2 years ago
Factor of 3x-3a+xy-ay
Pachacha [2.7K]

Answer:

(3 - y) & (x - a) are the factors

Step-by-step explanation:

3x-3a+xy-ay

=> 3x - xy - 3a - ay

=> x(3 - y) - a(3 - y)

=> (3 - y)(x - a)

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3 years ago
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Square root of 12/4 irrational or rational number
Mademuasel [1]
\sqrt{12/4} can be simplified to \sqrt{3}, which is an irrational number around 1.732

I hope this helps!
7 0
3 years ago
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