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mixer [17]
3 years ago
5

Select the equation that shows a proportional relationship between x and y. Oy - 2x + 4 oys 5x O y = 3x - 5 OY-5.8​

Mathematics
2 answers:
Pie3 years ago
4 0

Given:

There exist a proportional relationship between x and y.

To find:

The equation which represents a proportional relationship between x and y.

Solution:

If there exist a proportional relationship between x and y, then

where, k is constant of proportionality.

We know that, proportional relationship passes through the origin because (0,0) satisfy .

For x=0, check which equation has y=0.

In option A, .

In option B, .

In option C, .

In option D,  

Only in option C, we have a equation of the form  with 4 as constant of proportionality and it passes through (0,0).

<h2><u>Therefore, the correct option is C.</u></h2>

Brums [2.3K]3 years ago
3 0

Answer:

You can give China brainiest.

Step-by-step explanation:

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A software company keeps a ratio of 2.5 testers to every 10 software developers. If the company hires 20 developer in one year,
pochemuha

Answer:

They will need to hire 5 testers.

Step-by-step explanation:

This question can be solved using a simple rule of three.

For each 10 developers, we need 2.5 testers. So how many testers are needed for 20 developers?

10 developers - 2.5 testers

20 developers - x testes

10x = 20*2.5

10x = 50

x = \frac{50}{10}

x = 5

They will need to hire 5 testers.

6 0
3 years ago
Read 2 more answers
Find three consecutive integers whose sum is equal to −354. Three consecutive integers in ascending form are __,__,__
mixer [17]

Answer: -119, -120, and -121

Step-by-step explanation: This problem states that the sum of three consecutive integers is -354 and it asks us to find the integers. Three consecutive integers can be represented as followed.

X ⇒ <em>first integer</em>

X + 1 ⇒ <em>second integer</em>

X + 2 ⇒<em> third integer</em>

<em />

Since the sum of our three consecutive integers is -354, we can set up an equation to represent this.

X + X + 1 + X + 2 = -354

Now, we can simplify on the left side of the equation.

3x + 3 = -354

      -3      -3    ← subtract 3 on both sides of the equation

3x = -357

÷3     ÷3     ← divide both sides by 3

X = -119

X ⇒ <em>first integer = </em><em>-119</em>

X + 1 ⇒ <em>second integer = </em><em>-120</em>

X + 2 ⇒<em> third integer = </em><em>-121</em>

<em />

Therefore, our three consecutive integers are -119, -120, and -121.

6 0
4 years ago
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Isolate a variable in each system. You may need to use the distributive property to simplify the equation. Show your work.
expeople1 [14]

Answer:

1.  x=-7/3 + 4y/3

2. x= 6- 3y/4

Step-by-step explanation:

to isolate the variable you simply solve for it by moving all the terms which don't contain x to the right by multiplying, subtracting, adding, and dividing

5 0
3 years ago
What is the recursive formula for the geometric sequence with this explicit
AveGali [126]
The answer of this equation is a^n=9(-1/4) (n+ 1)
3 0
2 years ago
8. Change the fraction 3/4 to a percent.<br> A. 133%<br> B. 75%<br> C.63%<br> D. 34%
elena-s [515]

Answer:

B. 75%

Step-by-step explanation:

multiply the numerator and the denominator by 25. 3*25/4*25=75/100. 3/4=75%.

6 0
3 years ago
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