3 years ago

HELPPPP PLEASE!!!!!!

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

8 0

Answer:

x = 7

Step-by-step explanation:

7x - 12 = 9x - 26

+12 +12

7x = 9x - 14

-9x -9x

-2x = -14

___. ___

-2 -2

x = 7

You might be interested in

in a standard casino dice game the roller wins on the first roll if he rolls a sum of 7 or 11. what is the probability of winnin

Alborosie

<u>Answer-</u>

<em>The probability of winning on the first roll is </em><em>0.22</em>

<u>Solution-</u>

As in the game of casino, two dice are rolled simultaneously.

So the sample space would be,

$|S|=6^2=36$

Let E be the event such that the sum of two numbers are 7, so

E = {(1,6), (2,5), (3,4), (4,3), (5,2), (6,1)}

$|E|=56$

$\therefore P(E)=\dfrac{|E|}{|S|}=\dfrac{6}{36}$

Let F be the event such that the sum of two numbers are 11, so

F = {(6,5), (5,6)}

$|F|=2$

$\therefore P(F)=\dfrac{|F|}{|S|}=\dfrac{2}{36}$

Now,

$P(\text{sum is 7 or 11)}=P(E\ \cup\ F)=P(E)+P(F)=\dfrac{6}{36}+\dfrac{2}{36}=\dfrac{8}{36}=\dfrac{2}{9}=0.22$

8 0

3 years ago

Please help me this is important

ANTONII [103]

Step-by-step explanation:

the answer is:

180-48= 132°

7 0

3 years ago

Read 2 more answers

The point (1, –5) is reflected across the y-axis. A coordinate plane. What are its new coordinates?

luda_lava [24]

<h3>Answer: Choice C. (-1, -5)</h3>

Explanation:

The reflection rule we use is

$(x,y) \to (-x, y)$

when we want to reflect over the y axis. The x coordinate flips from positive to negative, or vice versa, while the y coordinate stays the same.

Therefore, $(1, -5) \to (-1, -5)$

7 0

3 years ago

Read 2 more answers

17) In the following figure, ABCD is a rhombus. Find 'X'. Pls ans fastly

creativ13 [48]

Answer:

x = 3

Step-by-step explanation:

5x - 1 = 3x +5

-3x

2x - 1 = 5

2x = 6

devide by x

x = 3

5 0

3 years ago

Mrs acquino made 25 cookies 4 fiths of the cookies wher oatmeal how many oatmeal cookies did mis acquino bake?

Kryger [21]

She made 20 oatmeal cookies

4/5 = 0.8

0.8 x 25 = 20

6 0

3 years ago