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Xelga [282]
4 years ago
15

9+3|5-x|=24 What is the lines for and how do I solve X with them?

Mathematics
2 answers:
qwelly [4]4 years ago
5 0

Answer:

x=0,10

Step-by-step explanation:

Ivahew [28]4 years ago
4 0

Answer:

the lines represent absolute value bars

x=0,10

Step-by-step explanation:

STEP 1: Move all terms not containing |5−x| to the right side of the equation.

3|5-x|=15

STEP 2: Divide each term by 3 and simplify.

|5-x|=5

STEP 3: Remove the absolute value term. This creates a ± on the right side of the equation because |x|=±x.

<em>5-x=±5</em>

STEP 4: Set up the positive portion of the ± solution.

5-x=5

STEP 5: Solve the first equation for x.

x=0

STEP 6: Set up the negative portion of the ± solution.

5-x=-5

STEP 7: Solve the second equation for x.

x=10

NOTE: The solution to the equation includes both the positive and negative portions of the solution.

x=0,10

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Jennifer is four less than three times Toby's age. If Jennifer is 23, then how old is Toby? equation: solution:​
agasfer [191]

Answer:

T = Toby

T=(23+4)/3

Step-by-step explanation:

If Jennifer’s age is 4 less than 3 times Toby’s age then Jennifer’s age by three,

T=(23+4)/3

and 3 times that, so we divide

T=(23+4)/3

Then Toby is 9 years of age, and shouldn’t be driving.

6 0
3 years ago
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20 -(x-5)=3(3x+5) need some help
DENIUS [597]
X=1 would be your answer

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3 0
3 years ago
The length of a rectangle is 4 cm less than twice its width. The perimeter of the
myrzilka [38]

Step-by-step explanation:

Let width be x

according to question

length = 2x-4

perimeter = 58

now,

perimeter = 2(length + width)

58 = 2(x+2x-4)

58 = 6x-8

6x = 66

x = 11

putting value of x in length

2x-4

= 2 X 11 -5

= 18

hence the dimensions of the rectangle is 18 and 11

4 0
3 years ago
Ask Your Teacher The circumference of a sphere was measured to be 90 cm with a possible error of 0.5 cm. (a) Use differentials t
SCORPION-xisa [38]

Answer:  

a)  28,662 cm²  max error

    0,0111     relative error

b) 102,692 cm³  max error

   0,004     relative error

   

Step-by-step explanation:

Length of cicumference is: 90 cm

L = 2*π*r

Applying differentiation on both sides f the equation

dL  =  2*π* dr    ⇒  dr = 0,5 / 2*π

dr =  1/4π

The equation for the volume of the sphere is  

V(s) =  4/3*π*r³     and for the surface area is

S(s) = 4*π*r²

Differentiating

a) dS(s)  =  4*2*π*r* dr    ⇒  where  2*π*r = L = 90

Then    

dS(s)  =  4*90 (1/4*π)

dS(s) = 28.662 cm²   ( Maximum error since dr = (1/4π) is maximum error

For relative error

DS´(s)  =  (90/π) / 4*π*r²

DS´(s)  = 90 / 4*π*(L/2*π)²      ⇒   DS(s)  = 2 /180

DS´(s) = 0,0111 cm²

b) V(s) = 4/3*π*r³

Differentiating we get:

DV(s) =  4*π*r² dr

Maximum error

DV(s) =  4*π*r² ( 1/  4*π*)   ⇒  DV(s) = (90)² / 8*π²

DV(s)  =  102,692 cm³   max error

Relative error

DV´(v) =  (90)² / 8*π²/ 4/3*π*r³

DV´(v) = 1/240

DV´(v) =  0,004

3 0
3 years ago
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Digiron [165]

Answer:

x<2 is your answer

Step-by-step explanation:

-2x+4>-4x+8

subtract each term by 8

-2x+4-8>-4x+8-8

add both side by 2x

-2x+2x-4>-4x+2x

-4>-2x

dividing both term by -2

-2x/-2<-4/-2

x<2

7 0
3 years ago
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