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Artyom0805 [142]
3 years ago
14

Soma de frações com uma incógnita

Mathematics
2 answers:
Licemer1 [7]3 years ago
6 0
Aqui está um exemplo:
3/9-X/X = 2/9
Que é 3/9-1/2 = 9/9
Boa sorte!


Elena-2011 [213]3 years ago
4 0

Answer:

é só vc multiplicar cruzado

Step-by-step explanation:

exemplo: 4       X        =         5x= 20        X= 4

                 5       5      


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In order to make green paint a 2:3 ratio of blue paint and yellow paint is used.If there are 30 ounces of green paint how many o
gladu [14]

Answer:

There are 30 ounce of green paint 18 ounces blue paint was needed.

Step-by-step explanation:

Given that,

In order to make green paint a 2:3 ratio of blue paint and yellow paint is used.

Assume 2x blue paint and 3x yellow paint required to make 30 ounce of green paint.

According to the problem,

2x+3x=30

⇒5x=30

\Rightarrow x=\frac {30}{5}

⇒ x=6

The amount of blue paint is = 2×6

                                              =12 ounces

The amount yellow paint is = (3×6)

                                            = 18 ounces

There are 30 ounce of green paint 18 ounces blue paint was needed.

6 0
2 years ago
Which ordered pairs are solutions to the inequality 3x-4y>5
Sloan [31]

Note: you did not provide the answer options, so I am, in general, solving this query to solve your concept, which anyways would clear your concept.

Answer:

Please check the explanation.

Step-by-step explanation:

Given the inequality

3x-4y>5

All we need is to find any random value of 'x' and then solve the inequality.

For example, putting x=3

3\left(3\right)-4y>5

9-4y>5

-4y>-4

\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}

\left(-4y\right)\left(-1\right)

4y

\mathrm{Divide\:both\:sides\:by\:}4

\frac{4y}{4}

y

So, at x = 3, the calculation shows that the value of y must be less

than 1 i.e. y<1 in order to be the solution.

Let us take the random y value that is less than 1.

As y=0.9 < 1

so putting y=0.9 in the inequality

3\left(3\right)-4\left(0.9\right)

=9-3.6

=5.4

  • As 5.4 > 5

Means at x=3, and y=0.9, the inequality is satisfied.

Thus, (3, 0.9) is one of the many ordered pairs solutions to the inequality 3x-4y>5.

6 0
2 years ago
Solve 2 | 2x + 10|+ 4 &gt; 10
Valentin [98]

Answer:

x>−72 or x<−132

Step-by-step explanation:

I believe that is the answer

8 0
3 years ago
A pair of parallel lines is cut by a transversal. One of the angles formed measures 58°.
Trava [24]
There are three more angles with the same measure. A pair of corresponding angles and a pair of vertical angles.
6 0
3 years ago
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The perimeter of a triangle is 92 centimeters. if two sides are equally long and the third side is 8 centimeters longer than the
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Nvm wait I read the question wrong. The real answer would be 28, 28, 36
6 0
3 years ago
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