3 years ago

Twice a number is three more than nine

Mathematics

2 answers:

antoniya [11.8K]3 years ago

8 0

answer: how we supposed to do it?

Step-by-step explanation:

i don't even understand

KonstantinChe [14]3 years ago

5 0

Answer:

Step-by-step explanation:

Let that number be <em>x</em>.

$2x = 9 + 3$

$2x = 12$

$x = 6$

You might be interested in

What is the x-intercept and the y-intercept of the graph of 2x+6y=18

Margaret [11]

x intercept is 10 and y intercept is 3

4 0

2 years ago

How to solve 6x - 9 - 2 (1 - x) = x + 9

Likurg_2 [28]

$x = 2.857$

$\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}$

$6x - 9 - 2(1 - x) = x + 9 \\ ⇢ 6x - 9 - 2 + 2x = x + 9 \\ ⇢ 8x - x = 9 + 11 \\ ⇢ 7x = 20 \\ ⇢ x = \frac{20}{7} \\ ⇢ x = 2.857$

${ \bf{ \underbrace{To\:verify:}}}$

$6 \times 2.857 - 9 - 2(1 - 2.857) = 2.857 + 9 \\ ➪ \: 17.142 - 9 - 2 \times( - 1.857) = 11.857 \\➪ \: 8.142 + 3.714 = 11.857 \\➪ \: 11.856 = 11.857 \\ ➪ \: 11.86 = 11.86 \\ ➪ L.H.S.=R. H. S$

Hence verified.

$\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}$

7 0

2 years ago

Plzz help me if you do i am going to mark as a branily star plz help plz<br>

liq [111]

Answer:

area is 16 perimeter is 4

Step-by-step explanation:

6 0

3 years ago

1/4 divides by 5/13=?

katrin2010 [14]

1/4 dividend by 5/13 is the same as
1/4 multiplied by 13/5 it’s inverse
1 x13 / 4x 5 = 13/20

8 0

3 years ago

Multiply. 3(6u)

aleksandr82 [10.1K]

Answer:

3u+ 18

try that :)

6 0

1 year ago

Twice a number is three more than nine​

Twice a number is three more than nine