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3 years ago

What is the value of z in the equation 3z + 5 = 4z -8

Mathematics

2 answers:

Komok [63]3 years ago

8 0

Answer:

Step-by-step explanation:

3z + 5 = 4z - 8

⇌ 5 + 8 = 4z - 3z

⇌ 13 = z

hjlf3 years ago

7 0

Answer:

-13

Step-by-step explanation:

i just took the test

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<img src="https://tex.z-dn.net/?f=%20%28%5Cfrac%7B1%7D%7B20%7D%20%20-%20%20%5Cfrac%7B1%7D%7B36%7D%20%29" id="TexFormula1" title=

Nadusha1986 [10]

Is that all to the problem ?

8 0

3 years ago

Read 2 more answers

Below is the list the highway gas mileages (in miles per gallon) of the randomly selected Honda car models. 22, 24, 26, 26, 28,

kompoz [17]

Answer:

Step-by-step explanation:

Given is the list the highway gas mileages (in miles per gallon)

22, 24, 26, 26, 28, 28, 29, 30, 30, 30, 31, 34, 34, 34, 34, 35, 36, 36, 41, 41

We construct stem and leaf plot as follows:

Stem Leaf

2 2 4 6 6 8 8 9

3 0 0 0 1 4 4 4 4 5 6 6

4 1 1

b) 34th percentile = 34*20/100 = 6.8th entry

i.e. in ascending order,

7th entry = 29 is the 34th percentile.

8 0

3 years ago

Find the distance between the points (-10, -9) and (-7, -1).

QveST [7]

Answer:

Distance: 8.5440037453175

Step-by-step explanation:

Distance: 8.5440037453175

Steps:

Distance (d) = √(-7 - -10)2 + (-1 - -9)2

= √(3)2 + (8)2

= √73

= 8.5440037453175

Slope and Angle:

ΔX = -7 – -10 = 3

ΔY = -1 – -9 = 8

Slope (m) =

ΔY

ΔX

= 2.6666666666667

θ =

arctan( ΔY )

ΔX

= 69.443954780417°

Equation of the line:

y = 2.6666666666667x + 17.666666666667

y =

8 x

+ 53

When x=0, y = 17.666666666667

When y=0, x = -6.625

3 0

3 years ago

Read 2 more answers

Determine if the following lines are parallel (never intersect), perpendicular (intersect at a 90 degree angle), intersecting (i

mihalych1998 [28]

Answer:

These lines are perpendicular.

Step-by-step explanation:

Put both equations in the slope intercept form of a line.

y = -6x - 8 This is already in the slope intercept form for a line

-x + 6y = 12 Add x to both sides of the equation

6y = x + 12 Divide through the whole equation by 6

y = 1/6x +2

Now we compare the two slopes of -6 and 1/6. They are negative reciprocals of each other. That means that the line are perpendicular.

7 0

2 years ago

**100 POINTS**I WILL MARK AS BRAINLIEST IF YOU GET IT CORRECT!

Akimi4 [234]

Answer:

As we know:

Direct variation => y = k*x, k is constant ( y/x = k = constant)

Inverse variation => y = k/x, k is constant (y*x = k = constant)

X - 1 2 5 10

Y - 6 12 30 60

Check the first 2 pair of X, Y:

(the remaining pair of value would show the same tendency)

X1 x Y1 = 1 x 6 = 6

X2 x Y2 = 2 x 12 = 24

=> X x Y is not a constant

=> Not an inverse variation.

=> B and D is incorrect

Otherwise, we have:

Y1/X1 = 6/1 = 6

Y2/X2 = 12/2 = 6

=> Y/X = 6

=> A direct variation with k = 6

=> y = 6x

=> Option C is correct

Hope this helps!

6 0

3 years ago

Read 2 more answers