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zimovet [89]
2 years ago
11

Solve this equation what is 5/6+4/6=

Mathematics
1 answer:
Vaselesa [24]2 years ago
7 0

Answer:

1\frac{2}{3}

Step-by-step explanation:

\frac{5}{6} + \frac{4}{6} = \frac{10}{6} = \frac{5}{3} = 1\frac{2}{3}

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Solve the system of linear equations by substitution.<br> 3x + y = -9<br> y=5x+7
11Alexandr11 [23.1K]

Answer:

The solution is x = -2, y = -3

Step-by-step explanation:

Let's start with the equation 3x + y = -9

Substitute the y for 5x+7 seen in the second equation

Now you have 3x + (5x+7) = -9

Lets solve:

Let's add the x's

Now we have 8x + 7 = -9

Substracy seven from each side

Now we have 8x = -16

Now let's divide 8 on each side

Now we have x = -2

Now lets plug in -2 to the second equation

The second equation is y = 5x+7

When we plug in -2 we get y=5(-2)+7

We multiply

We now have y = -10+7

Add

y = -3

The solution is x = -2, y = -3

8 0
2 years ago
Solve the following.<br> 2x^2-7x-4/6x^2+7x+2&lt;0<br> Can someone explain how to solve this.
oksano4ka [1.4K]

Answer:

Which one have same variable gather or decrease up

Step-by-step explanation:

2x^2-4.6x^2=1.4x^2

-7x+7x=0

1.4x^2+2<0

x<0

4 0
3 years ago
A regular assignment has 15 sides.Calculate the size of each interior angle
MariettaO [177]

Answer:

The measure of an interior angle of a regular 15-gon is 120°.

Step-by-step explanation:

We need to determine the measure of the size of an interior angle of a regular 15-gon having 15 sides.

Thus,

The number of sides n = 15

Hence,

Using the formula to determine the measure of an interior angle of a regular 15-gon is given by

(n - 2) × 180° = n × interior angle

substitute n = 15

(15 - 2) × 180 = 15 × interior angle

13 × 180 = 15 × interior angle

Interior angle = (10 × 180) / 15

                      = 1800 / 15

                      = 120°

Therefore, the measure of an interior angle of a regular 15-gon is 120°.

6 0
3 years ago
A quadrilateral has two consecutive angles that measure 90 each which if the following quadrilaterals could have this property
Lilit [14]

Answer

Rectangle or Square

Why

Only square and rectangle has the property of having a 2 90 degrees angle or right angle.

3 0
3 years ago
If a worker accidentally drops a bolt from the top of a 1600 foot tall​ tower, the height of the bolt after t seconds is given b
joja [24]
<span>10 seconds. You need to figure out when the height of the bolt reaches 0. Given the equation: 1600 - 16T^2 = 0 Add 16T^2 to both sides 1600 = 16T^2 Divide both sides by 16 100 = T^2 Take the square root of both sides 10 = T Therefore the bolt will hit the ground after 10 seconds.</span>
8 0
3 years ago
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