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Black_prince [1.1K]
3 years ago
5

Solve for the equation. 4x - 13 = 2x + 9

Mathematics
2 answers:
nataly862011 [7]3 years ago
5 0
I believe the answer is 11

TiliK225 [7]3 years ago
5 0

Answer:

11

Step-by-step explanation:

Step by step solution :

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  2x - 22  =   2 • (x - 11)

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

2.1      Solve :    2   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

2.2      Solve  :    x-11 = 0

Add  11  to both sides of the equation :

                     x = 11

One solution was found :

                  x = 11

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Divide 190 to the ratio 0.2:0.3:0.5
Lostsunrise [7]
0.2 + 0.3 + 0.5 = 1
190 x 0.2/1 = 38
190 x 0.3/1 = 57
190 x 0.5/1 = 95
   190
0.2: 0.3: 0.5
38: 57: 95
3 0
3 years ago
Please help mee i need to complete this by 1;30!!
Anarel [89]

Answer:

The diameter of that circle is 8, because the radius is 4.

Step-by-step explanation:

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3 years ago
Use any method to estimate how much Joan earns in all working 6.75 hours for 2 days earning $15.70 per hour.show your work
alexdok [17]

Answer:

$ 211.95

Step-by-step explanation:

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8 0
3 years ago
How do i calculate? All the way to s_75. It’s so long
mina [271]

Answer:

  -675

Step-by-step explanation:

The sum can be broken into parts that you know. Here, one of those parts is the sum of numbers 1 to n. That sum is given by n(n+1)/2.

\displaystyle S_{75}=\sum\limits_{n=1}^{75}{(67-2n)}=\sum\limits_{n=1}^{75}{67}-2\sum\limits_{n=1}^{75}{n}\\\\=75\cdot 67-2\dfrac{75(75+1)}{2}=75(67-76)\\\\=\bf{-675}

__

Another way to do this is to realize the sequence of numbers is an arithmetic sequence with a first term of 65 and a last term of 67-2·75 = -83.

The sum of an arithmetic sequence is found by multiplying the number of terms by their average value. Their average value is the average of the first and last terms.

The average value of those 75 terms is (65 +(-83))/2 = -9, so their sum is ...

  75(-9) = -675

7 0
3 years ago
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Claim: The coordinates of A and A' are the same

Answer: True

Explanation: The phrasing "dilating about point A" means that point A is the center of the universe, so to speak, in terms of this dilation operation. Point A is the fixed point that does not move while every other point does move. Because the scale factor is 2/3, which is less than 1, this means every other point comes closer to point A. So something like segment AB will get shorter.

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3 years ago
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