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Leto [7]
1 year ago
5

Solve the equation: 4x - 5 = 8 + 4x *13-130all real numbersno solution

Mathematics
1 answer:
Hatshy [7]1 year ago
8 0

To solve the equation you can first subtract 4x from both sides. Then,

\begin{gathered} 4x-5=8+4x\rightarrow\text{original equation} \\ 4x-4x-5=8+4x-4x \\ 0-5=8+0 \\ -5=8 \end{gathered}

Since you arrive at something false, -5 is not equal to negative 8, so the equation has no solution.

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Two 6-sided dice are rolled. what is the probability that the sum of the two numbers on the dice will be greater than 9?
AVprozaik [17]
What combination of numbers are needed in order to get a sum of 9?
        It can be:
             •  First die is 6 , second die is 3 
             •  First die is 3 , second die is 6
             •  First die is 4 , second die is 5
             •  First die is 5 , second die is 4

How many possible combinations are made? Yep, 4 possible combinations.

Recall the formula for probability
       Probability =   \frac{Number of desired outcomes}{Number of all possible outcomes}

There are 4 desired number of outcomes.
How about the total possible outcomes?
     • How many numbers are possible to appear when the first die is rolled?
        Answer: 6
     • What about the second die?
        Answer: Also 6
     • Therefore, total possible outcomes = 6 * 6 = 36 outcomes

You can now solve for the probability.

      Probability = \frac{4}{36} =  \frac{1}{9} or approximately 11.11%
3 0
2 years ago
Which is NOT the formula for an area of a rectangle?
Mademuasel [1]
The answer that is NOT the formula for an area of a rectangle is A= 1/2X h X (Base 1 + Base 2)
7 0
2 years ago
The equation of the line of best fit of a scatter plot is y = –3x + 2. What is the slope of the equation?
sesenic [268]
Y = mx + b

m = slope, b = y-intercept

m = -3, therefore the slope is -3
8 0
3 years ago
Read 2 more answers
3x-1/5-2/9x=124/5<br>how do you solve this?
Sergeu [11.5K]
So first you would combine the like-terms so you get:
\frac{7}{9} x - \frac{1}{5} = 124 \div 5
and combine the second like-terms:
\frac{7}{9}x - \frac{1}{5} = 24.8
now you only have a two step equation and you continue by doing the reciprocal and you add the -1/5 to the 24.8 where you get:

7/9x=24.6

then because the 7/9 is being multiplied by the x and your trying to isolate it you divide it by the 7/9 on both sides and you'll end up getting

x=31.628571429....
6 0
3 years ago
Dan invests £800 into his bank account.
Ronch [10]

Answer:

£160

Step-by-step explanation:

Ammount he receives per year times 4.

800 x 0.05 x 4

= £160

6 0
2 years ago
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