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alexandr402 [8]
3 years ago
13

4 - 6x < 2(2x + 3) Cómo resolver esta ecuación ?

Mathematics
1 answer:
laiz [17]3 years ago
6 0

Answer:

x>-\frac{1}{5}

Step-by-step explanation:

This is an inequality ("<" -- less than sign). We can solve this as an equation solving process.

Remember the distributive property:

a(b+c) = ab + ac

This is important for right side of the equation.

Let's solve:

4-6x

So x is greater than -1/5. we can write:

x>-\frac{1}{5}

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How do you evaluate 3yx+2x when x=4 and y=-2<br> A. -28<br> B. -16<br> C. 8<br> D. 56
Vikki [24]

Answer:

B: -16

Step-by-step explanation:

Plug the variables in accordingly. 3(-2)(4)+2(4)

-6(4)+8

-24+8

-16

8 0
3 years ago
A jar contains 18 red marbles 14 green marbels and 20 blue marbles a marble was selected at random the color was recorded and th
muminat

The "relative frequency" is

         (number of times a blue marble came out)
divided by
         (total number of trials before everybody got bored and quit) .

-- The relative frequency of blue was  (20/60)  =  (33 and 1/3) % .
(Even though 38.5% of the marbles in the jar are blue,
they didn't get picked that often.)

-- The relative frequency of green was  (18/60)  =  30 % .
(Even though only 26.9% of the marbles in the jar are green,
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-- The relative frequency of red was  (22/60)  =  (36 and 2/3) % .
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3 0
3 years ago
4 7/12 + 2 1/12 what is the estimate answer
Pani-rosa [81]
4 \frac{7}{12} =  \frac{12*4+7}{12} =  \frac{55}{12}  \\  \\ 2 \frac{1}{12} =  \frac{2*12+1}{12} =  \frac{25}{12}  \\  \\  \frac{55}{12} +  \frac{25}{12} =  \frac{80}{12}  \\  \\  \frac{80 :4}{4:4}  =  \frac{20}{3}
3 0
3 years ago
Read 2 more answers
#14 two cars start from the same point, at 11:05 am, traveling in opposite directions at 45 and 24 mph, respectively. At what ti
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The cars travel at a 21MPH difference, so if we divide 460 by 21, we get 21.9


Answer: 21.9 hours

3 0
3 years ago
The length of one base of a trapezoid is 19 less than five times the length of the other base. If the trapezoid has a height of
ycow [4]

The length of the longer base is 41 ft.

<u><em>Explanation</em></u>

Lets assume, length of one base is x ft.

As, another base is 19 less than five times the length of this base, so the length of another base = (5x- 19) ft.

The trapezoid has a height of 18 ft and area of 477 ft²

Formula for Area of trapezoid, A=\frac{1}{2} (a+b)*h , where a, b = Two bases of trapezoid and h = height of the trapezoid.

Given in the question: A= 477 and h= 18

We have also two bases as: a= x and b= 5x-19

So, according to the above formula...

A= \frac{1}{2}(a+b)h\\\\ 477=\frac{1}{2}(x+5x-19)*18\\\\ 477=9(6x-19)\\\\477= 54x-171\\\\477+171=54x\\\\648=54x\\\\x=\frac{648}{54} = 12

So, length of one base is 12 ft  and another base =(5*12-19)ft =(60-19)ft = 41 ft

That means, the length of the longer base is 41 ft.



8 0
3 years ago
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