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spin [16.1K]
3 years ago
14

9.43 2.3x-6.7x=-0.3x

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
7 0
First solve the X factors on the left side: 2.3x - 6.7x = -4.4x 9.43-4.4x=-0.3x Next bring the all the x terms to the same side by adding -4.4x to each side 9.43=4.1x Then divide each side by 4.4 9.43/4.4 X=2.14 I think this is the answer but have to ask what is the sign that goes between 9.43 and 2.3x? This can drastically change the answer. Your goal is to solve for x, you do this by combining like like terms and isolating the the x terms.
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Factor the difference of the perfect square. If the binomial will not factor, write prime.
KATRIN_1 [288]
Easy peasy, this is a representation of differnce of 2 perfect squares
a^2-b^2=(a-b)(a+b)
3 0
3 years ago
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What is the slope of the equation y= 5/4 times -7/4
gulaghasi [49]

Answer:

5/4

Step-by-step explanation:

If the equation is

y = \dfrac{5}{4}x - \dfrac{7}{4}

then the slope is the number multiplying x, so

slope = 5/4.

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Change this root below into a power.
Elena L [17]

Answer:

5^{1/2}

Step-by-step explanation:

6 0
2 years ago
Need help here plss
Ierofanga [76]

Two linear equations can have no solutions, exactly one solution or infinitely many solutions. There will be no solution if the lines are parallel on a graph. There will be exactly one solution if the lines intersect each other on a single point. And finally, there will be infinite solutions if the lines overlap each other perfectly.

A single line however has infinite ordered pair solutions as the line travels infinitely in both directions on the coordinate plane. For example, using the equation y=3x, for any real value of x, we will get a real value for y.

Linear inequalities with two variables have infinitely many solutions. We can use the inequality y>3x as an example. For any real value of x, we will get a real value for y.

I hope this helps!

6 0
3 years ago
The principal at valley elementary school had 840 stickers that he gave to 42 children. 2/3 of the children were boys and each o
STatiana [176]

Answer: each girl received 30 stickers.

Step-by-step explanation:

Let x represent the number of stickers that the boys received.

Let y represent the number of stickers that the girls received.

The total number of children was 42. 2/3 of the children were boys. It means that the number of boys were

2/3 × 42 = 28

The number if girls would be

42 - 28 = 14

The total number of stickers that the school principal shared was 840. It means that

28x + 14y = 840- - - - - - - - -1

Each of the boys received the same number of stickers while each girl received twice as many as each boy. It means that

y = 2x

Substituting y = 2x into equation 1, it becomes

28x + 14 × 2x = 840

28x + 28x = 840

56x = 840

x = 840/56

x = 15

y = 2x = 15 × 2

y = 30

4 0
3 years ago
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