2ax - 15 = 3(x + 5) + 5(x - 1) In the equation above, a is a constant. If no value of x satisfies the equation, what is the value of a ?
NEED EXPLANATION!​

Answers

Answer 1

Answer:

Step-by-step explanation:

Hello,

let s regroup the terms

2ax - 15 = 3(x + 5) + 5(x - 1) *** add 15 to both sides ***

<=> 2ax = 15 + 3x + 15 + 5x - 5 *** develop to remove the parentheses***

<=> 2ax = 8x + 25 *** simplify ***

<=> (2a-8)x = 25 *** subtract 8x from both sides ***

<=> (a-4)x=25/2 *** divide by 2 both sides ***

There is no solution is a-4 = 0 ,

because it would mean 0 = 25/2 and this is not possible

So it gives a = 4

Thanks

Answer 2

In the case when no value of x satisfies the equation so there the value of a should be 4.

Calculation of the value of a:

Since

the equation is  

2ax - 15 = 3(x + 5) + 5(x - 1)

2ax = 15 + 3x + 15 + 5x - 5

2ax = 8x + 25

(2a-8)x = 25

So a = 4

hence, In the case when no value of x satisfies the equation so there the value of a should be 4.

Learn more about an equation here https://brainly.com/question/22358515


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A baker is making rolls. He has 20 pounds of dough. Each roll is made from 1/8
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Answers

ANSWER: he can make 160 rolls
EXPLANATION: each roll is 1/8 of a pound of dough, so 1 pound of the dough is 8 rolls

QUESTION 1: In Exercises 5–8, use the method illustrated in Example 2 to determine moving averages by subtraction and addition. Determine the 6-day SMA for the ten consecutive trading day closing prices for SunEdison Inc. Listed below. $2.65, $2.63, $2.70, $2.63, $2.50, $2.65, $2.66, $2.56, $2.52, $2.37 * 5 points

Answers

Answer:

The 6-day SMA for the ten consecutive trading day

= $2.63,  $2.63,  $2.62,  $2.59,  $2.54

Step-by-step explanation:

Determining the 6-day SMA for the given values

using the addition and subtraction methodology

First we will determine the Average closing prices for 1 - 6 days

=  [tex]\frac{2.65 + 2.63 + 2.70 + 2.63 + 2.5 + 2.65}{6}[/tex]  =  15.76 / 6 =  $2.626 ≈ $2.63

next we have to determine the SMA for days 2 - 7

= 2.63 - [tex]\frac{2.65}{6} + \frac{2.66}{6}[/tex]  =  [tex]\frac{15.77}{6}[/tex]  ≈ $2.63

SMA for days 3 - 8

= 2.63 -  [tex]\frac{2.63}{6} +\frac{2.56}{6} = \frac{15.70}{6}[/tex] ≈  $2.62

SMA for days 4 - 9

= 2.62 - [tex]\frac{2.70}{6} + \frac{2.52}{6} = \frac{15.52}{6}[/tex]  ≈  $2.59

SMA for days 5 - 10

= 2.59 - [tex]\frac{2.63}{6} + \frac{2.37}{6} = \frac{15.26}{6}[/tex]  ≈  $2.54

Hence the 6-day SMA for the ten consecutive trading day

= $2.63, $2.63, $2.62, $2.59, $2.54

Is -12 divided by -5 a rational number or irrational

Answers

Answer:

Rational

Step-by-step explanation:

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Any terminating decimal is a rational number. 2.4=2 4/10 or 24/10 which reduces to 12/5 To integers represented

What is the value of the expression below?

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–1
7
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Answers

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Step-by-step explanation:

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write a linear equation that describes the problem

Answers

Answer:

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1. A local pizzeria sold 85 pizzas yesterday

(a) The owner offers the employees a bonus if the number of pizzas sold increases by 20% today. How many pizzas must the pizzeria sell for employees to receive the bonus?


(b) Suppose the actual number of pizzas sold today was 65. Describe the number of pizzas sold as a percent increase or decrease rounded to the nearest hundredth.

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Answers

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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c. 9

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[tex] {ax}^{2} + bx + c[/tex]

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Step-by-step explanation:

Answer:

(-4,1)

Step-by-step explanation:

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Multiplication Property of Equality
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Answers

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Answers

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Step-by-step explanation:

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Answers

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Answers

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8: 8,16,24,32

16: 16,21,48

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Answers

the function is odd

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Wouldn’t it be C?? Hopefully this is right

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In terms of geometry, a reflection should be known as the flip, It should be considered as the mirror image of the shape. The image should reflect via the line that we called as the reflection line.

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The expansion will have
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Answers

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Step-by-step explanation:

4(m+2) use distributive property

Answer:

The expansion will have 5 terms with coefficients from row 4 of Pascal’s triangle.

Step-by-step explanation:

The function graphed below represents the altitude in feet, y, of a passenger airplane during descent after 3 minutes.
y
35.000
PASSENGER PLANE ALTITUDE
30.000
25.000
ALTITUDE
(FEET)
20.000
15.000
10.000
S000
10
15
TIME
(MINUTES)
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O x-intercept
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Orange
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Answer:

x- intercept

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2-6lnx= 10

Answers

Answer:

Work it like a normal algebra problem to get ln x on one side. Then use a calculator or log tables.

Explanation:

Until you get to the actual logarithm the math is the same as for any algebra equation.

2

6

×

ln

(

x

)

=

10

;  

6

ln

(

x

)

=

8

;  

ln

(

x

)

=

(

4

3

)

NOW we take the antilog, inverse, or exponential of both sides:

e

ln

(

x

)

=

e

(

4

3

)

;  

x

=

0.264

CHECK:

2

6

×

ln

(

x

)

=

10

;  

2

6

ln

(

0.264

)

=

10

2

6

(

1.33

)

=

10

;  

2

(

8

)

=

10

;  

10

=

10

CORRECT!

1. what statement best represents the angle pair relationship for angle aoc and boc

2. what statement best represents the angle pair relationship for angle aoc and bod

Answers

Answer:

AOC and BOC is complementary angles.

AOC and BOD is supplementary angles

Step-by-step explanation:

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