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3 years ago

3х – 12 = 5х – 31 How do I solve this

Mathematics

1 answer:

yaroslaw [1]3 years ago

8 0

Answer: x = 9.5

Step-by-step explanation:

3x - 12 = 5x - 31

First, add 31 to each side.

We get:

3x + 19 = 5x

Subtract 3x from each side.

We get:

19 = 2x

Divide both side by 2

9.5 = x

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I need help quick it's urgent!

GREYUIT [131]

Answer:

$x=4$

Step-by-step explanation:

start by squaring both sides:

$(\sqrt{-8+3x} )^2=(2)^2$

squaring a square root cancels it out:

$-8+3x = 4$

solve for x by first adding 8 to both sides:

$3x=12$

then divide both sides by 3:

$x=4\\$

8 0

3 years ago

Select two answer choioces

dexar [7]

Answer:

C or 3rd option

Step-by-step explanation:

1/3 - 2/5

15/15 - 6/15

9/15

B is not correct

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6 0

3 years ago

Which graph is generated by this table of values? x –4 0 3 y 1 2 3

Nookie1986 [14]

Answer: See the graph attached.

Step-by-step explanation:

1. To solve this exercise you must plot the points given in the table of the problem, which are shown below:

(-4,1), (0,2), (3,3)

2. You must plot the first value of each ordered pair on the x-axis.

3. You must plot the second value of each ordered pair on the y-axis.

4. Therefore, when you plot them, you obtain the graph shown attached.

7 0

3 years ago

Factorise : x^2+x-72 Step by Step

Ivan

Answer:

(x + 9)(x - 8)

Step-by-step explanation:

f(x) = x^2 + x - 72

= x^2 - 8x + 9x - 72

= (x^2 - 8x) + (9x - 72)

= x(x - 8) + 9(x - 8)

= (x + 9)(x - 8)

4 0

3 years ago

Read 2 more answers

Write a rule for linear function in the table

Vesnalui [34]

d. f(x)=2x+1

f(5)=2(2)+1

f(5)=4+1

f(5)=5

f(11)=2(5)+1

f(11)=10+1

f(11)=11

f(8)=2(8)+1

f(8)=16+1

f(8)=17

f(23)=2(11)+1

f(23)=22+1

f(23)=23

3 0

3 years ago