All categories

2 years ago

What is the value of 12x + 9x - 3 = 3(2x + 14) for the inequality ?

Mathematics

2 answers:

lawyer [7]2 years ago

7 0

This is an equation.

See attachment for math work and answer.

Masja [62]2 years ago

7 0

Step-by-step explanation:

12x + 9x - 3 = 3(2x + 14)

12x + 9x - 3 = 6x + 42

21x - 3 = 6x + 42

21x - 6x = 42 + 3

15x = 45

15x/15 = 45/15

x = 3

You might be interested in

Jonathan records how 90 pupils travelled to school on one day and represents this information on the pie chart below.

xeze [42]

Answer:

86.4

Step-by-step explanation:

First adding up all the percentages on the chart you get 360

Then figuring out what 24° of 360 is

You then get 86.4

4 0

1 year ago

Solve -7x^2+x+9=-6x quadratic formula

myrzilka [38]

Answer:

$-7x^2+x+9=-6x$

$-7x^2+x+9+6x=-6x+6x$

$-7x^2+7x+9=0$

$quadratic\: formula$

$x_{1,\:2}=\frac{-7\pm \sqrt{7^2-4\left(-7\right)\cdot \:9}}{2\left(-7\right)}$

$\sqrt{-7^{2} -4(-7)\times9} =\sqrt{301}$

$x_{1,\:2}=\frac{-7\pm \sqrt{301}}{2\left(-7\right)}$

$\frac{-7+\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7+\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7+\sqrt{301}}{-14}$

$\frac{-7-\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7-\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7-\sqrt{301}}{-14}$

$answer=\frac{7+\sqrt{301}}{14}$

$OAmalOHopeO$

7 0

2 years ago

PLEASE I NEED HELP AND HURRY!

kirza4 [7]

Answer:

95 degrees

Step-by-step explanation:

A and C are acute angles and D is too much

4 0

2 years ago

Help me it’s a test !!! Please!!

Tanzania [10]

Answer:

looks hard

Step-by-step explanation:

ndjwdfhewgifgwhcvw

5 0

2 years ago

Which is the largest number? 8.2, 7.98, 8 9/10, 7 8/9

zzz [600]

Answer:

8 9/10 is the largest number

8 0

2 years ago

Read 2 more answers