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wel
3 years ago
14

What is the soulution of the equation 3(2x+5)=3x+4

Mathematics
2 answers:
lakkis [162]3 years ago
8 0

x=-\frac{11}{3}

or

x=-3.666666666666666666666666666666666666666666666

mel-nik [20]3 years ago
8 0

Answer:

x=-11/3

Step-by-step explanation:

Given equation is 3(2x+5)=3x+4

Multiplying 3 into the equation we get

6x+15=3x+4

Adding (-3x) and (-15) to both sides of equation

6x+15+(-3x)+(-4)=3x+4+(-3x)+(-15)

Simplifying

6x+15-3x-15=3x+4-3x-15

6x-3x+15-15=3x-3x+4-15

we know that +15-15=0 and 3x-3x=0

3x+0=0-11

3x=-11

dividing by 3 to both sides of equation we get

3x/3=-11/3

x=-11/3 which is the answer.


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~Hello there! ^_^

Your question: What place value does 3 have in 4,235,100..?

Your answer: Lets solve this!

So, the number 3 is standing in 10 thousands place.

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7 0
3 years ago
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Nick was playing a game with his friends. In the game, he received points for correct answers and lost points for incorrect answ
HACTEHA [7]

Answer:

-7

Step-by-step explanation:

because 15-22= -7

he started at 0, gained 15 points but then lost 22, so after the two problems he'd have a score of -7.

3 0
3 years ago
These four numbers are plotted on a number line: -2/3, 5/8, -3/5, and -1/2. Which is the correct ordering on the number line fro
stiks02 [169]

Answer:

-2/3 ; - 3/5 ; - 1/2 ; 5/8

Step-by-step explanation:

Given that:

We could convert the numbers to decimal to obtain a better view of the values :

-2/3 = - 0.66666

5/8 = 0.625

-3/5 = - 0.6

-1 /2 = - 0.5

Negative values are always arranged first on left of a number line.

-0.66666 < - 0.6 < - 0.5 <0.625

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-2/3 ; - 3/5 ; - 1/2 ; 5/8

5 0
3 years ago
A survey of an urban university (population of 25,450) showed that 870 of 1,100 students sampled supported a fee increase to fun
Katen [24]

Answer:

95% confidence interval for the proportion of students supporting the fee increase is [0.767, 0.815]. Option C

Step-by-step explanation:

The confidence interval for a proportion is given as [p +/- margin of error (E)]

p is sample proportion = 870/1,100 = 0.791

n is sample size = 1,100

confidence level (C) = 95% = 0.95

significance level = 1 - C = 1 - 0.95 = 0.05 = 5%

critical value (z) at 5% significance level is 1.96.

E = z × sqrt[p(1-p) ÷ n] = 1.96 × sqrt[0.791(1-0.791) ÷ 1,100] = 1.96 × 0.0123 = 0.024

Lower limit of proportion = p - E = 0.791 - 0.024 = 0.767

Upper limit of proportion = p + E = 0.791 + 0.024 = 0.815

95% confidence interval for the proportion of students supporting the fee increase is between a lower limit of 0.767 and an upper limit of 0.815.

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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