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Xelga [282]
1 year ago
13

What value of b will make thr solution for the equation below be 5?4(bx-3)=8(x-2)Can someone please help me out? I really don't

understand this.
Mathematics
1 answer:
FromTheMoon [43]1 year ago
5 0

For this kind of problem is nneded to replace a letter b by a numerical value. Thne find the missing variable x .

then replace b = 5 in equality

4(5x - 3) = 8 ( x-2)

now eliminate parenthesis, by PEMDAS method

4•5x - 3•4 = 8x - 8•2

20 x - 12 = 8x - 16

now reorganize letters and numerical values

20x - 8x = -16 + 12

12x = -4

then finally x= -4/12 = -1/3

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The picture shows the graphs of the functions expressed by a formula of the following type: y = kx + b.
ollegr [7]

Answer:

line 1: y= 1x+ 2

line 2: y= -1x-0.5

(usually 1 is omitted but I added for clarity)

Step-by-step explanation:

slope (x)= yfinal-yintial/xfinal-xinitial

b= where line intersects y axis

line 1:  (-1,0), (0.5,1.5)

(1.5-0)/(0.5-(-1))

(1.5)/(1.5)

slope= 1x

y=x+ 2

line 2: (-0.5,0), (0.5,-1)

(-1-0)/(0.5-(-0.5))

(-1)/(1)

slope= -1x

y=-x-0.5

7 0
3 years ago
Read 2 more answers
Can someone please answer this for me
Alenkinab [10]

Answer:

45

Step-by-step explanation:

sinv= 48/ 48sqr2

v=45*

<W= <U - <V

<W= 90 -45

<W= 45

6 0
3 years ago
Read 2 more answers
5x + 7y = 5 10x + 14y = 10 solve by elimination​
sesenic [268]
Multiply the first equation by -2
8 0
2 years ago
Read 2 more answers
60 + 2а – 4 = 2b + За
Brrunno [24]

Answer:

56 - 2b = a

Step-by-step explanation:

Step 1:

60 + 2a - 4 = 2b + 3a

Step 2:

56 + 2a = 2b + 3a

Step 3:

56 = 2b + a

Answer:

56 - 2b = a

Hope This Helps :)

6 0
3 years ago
A factory that manufactures bolts is performing a quality control experiment. Each object should have a length of no more than 1
xeze [42]

The test statistic z  is 2.33, the p-value corresponding to the test statistic z value is 0.0099.

<h3>What is Probability?</h3>

Probability is the measure of the likeliness of happening of an event.

The mean of the data is 15.07 centimeters

The standard deviation of the data is 0.26 centimeters.

n = 75

Significance Level ∝ = 0.01

According to the null and alternative hypothesis

Hₐ : \rm \mu ≤15  vs H₁ : \rm \mu >15

The test statistic z  is given by

\rm Z = \dfrac{(X-\mu)}{\sigma/\sqrt{n}}

Z = ( 15.07 -15)/(0.26/√75)

Z = 2.33

The p-value corresponding to z value is 0.0099

as p-value < significance level, therefore the H₁ : \rm \mu >15 is acceptable.

No, significant evidence is not present to tell that the length of bolts is actually greater than the mean value at a significance level of 0.01.

To know more about Probability

brainly.com/question/11234923

#SPJ2

3 0
2 years ago
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