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maksim [4K]
3 years ago
5

5x+3x=5x+15/2 what value 3x make the equation true

Mathematics
2 answers:
andrey2020 [161]3 years ago
4 0
Subtract 5x from both sides. You'll get 3x=15/2
Turn 15/2 into a mixed number. 7 1/2
Divide 3 both sides.
Answer: 2 1/2

Check your work.

5*2 1/2 =12.5 3*2 1/2= 7.5
Therefore 12.5+7.5=12.5+7.5
12.5+7.5=20
Therefore the answer is 2.5 or 2 1/2
Dovator [93]3 years ago
4 0
We need to get the 3x alone so
5X+3X=5X+15÷2
(÷5x)3X=5X+7.5(÷5X)
(÷3)X=7.5(÷3)
X=7.5÷3
X=2.s<u />
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ivanzaharov [21]

Answer: 3:2

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5 0
2 years ago
Sketch these cartesin products on the x-y plane R^2<br><br> 14. 11,21x1,1.5,2
ale4655 [162]

Answer:

\left\{11, 21\right\} \times \left\{1, 1.5, 2\right\} = \left\{ (11, 1), (11, 1.5), (11, 2), (21, 1), (21, 1.5), (21, 2)\right\}

Step-by-step explanation:

The Cartesian product between two discrete sets, is given by all possible ordered pairs originated with the combinations of the elements of the two sets, thus the requested Cartesian product is:

\left\{11, 21\right\} \times \left\{1, 1.5, 2\right\} = \left\{ (11, 1), (11, 1.5), (11, 2), (21, 1), (21, 1.5), (21, 2)\right\}

A = (11, 1)\\B = (11, 1.5)\\C = (11, 2)\\D = (21, 1)\\E = (21, 1.5)\\F = (21, 2)\\

You can see the attached file

Download pdf
3 0
3 years ago
How do you do this problem?
zzz [600]

Answer:

x = 125°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the given angles from 180 for x, that is

x = 180° - (30 + 25)° = 180° - 55° = 125°

4 0
3 years ago
Read 2 more answers
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