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Debora [2.8K]
3 years ago
11

What is the property of this equation? if 2x=8 then x=4

Mathematics
1 answer:
Eva8 [605]3 years ago
7 0
Answer is 2 x 4=8 this is a scientific property
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Solve for a.<br><br> 7a - 2b = 5a + b<br><br> a = 2b<br> a = 3b<br> a = b<br> a = b
larisa [96]

\\&#10;\text{Consider the equation}\\&#10;\\&#10;7a-2b=5a+b\\&#10;\\&#10;\text{to solve for a, we will first add 2b both sides. so we get}\\&#10;\\&#10;7a-2b+2b=5a+b+2b\\&#10;\\&#10;\Rightarrow 7a=5a+3b\\&#10;\\&#10;\text{now subtract 5a both sides. so we have}\\&#10;\\&#10;7a-5a=3b\\&#10;\\&#10;\Rightarrow 2a=3b\\&#10;\\&#10;\text{divide 2 both sides to get}\\&#10;\\&#10;\Rightarrow a=\frac{3b}{2}

Hence the value of a is: 3b/2

5 0
3 years ago
Solve. Check that your answer is reasonable. Paula's painting has a perimeter of 1.22 meters. She wants to put ribbon around the
iren2701 [21]

Answer:

5 pieces

Step-by-step explanation:

Given:

Paula's painting has a perimeter of 1.22 meters.

She wants to put ribbon around the edge.

If the ribbon comes in pieces that are 25 centimeters long.

Question asked:

How many pieces of ribbon does she need to go all the way around her painting?

Solution:

Perimeter of painting = 1.22 meters

First of all we will convert it into centimeters:-

As we know:

1 meter = 100 centimeters

1.22 meters = 100 \times 1.22 = 122 centimeters

Now, as given that ribbon comes in pieces of 25 cm long and total we should have 122 cm to go all the way around the painting.

Number of pieces of ribbon will be needed = \frac{122}{25} =4.88\

Thus, she need 5 pieces of 25 cm long ribbon to go all the way around the painting.

<u>Note</u>:-This is by default understood that few length of 5th ribbon will be left over.

3 0
3 years ago
Can someone answer this for me please
Marianna [84]

Answer:

36 Seconds

Step-by-step explanation:

3 x 12 equals 36

4 x 9 equals 36

what we do is find a least common multiple for both the numbers

hope this helps, if it does, can i have brainliest?

6 0
3 years ago
Given quadrilateral RSTU, determine if each pair of sides (if any) are parallel and which are perpendicular for the coordinates
Mrac [35]
Slope RS: 2/3
Slope ST: -3/2
Slope TU: 4/6 = 2/3
Slope UR: -1/5

Sides RS and TU have the same slope, so they are parallel.
The slope of side ST is the negative reciprocal of the slopes of sides RS and TU, so side ST is perpendicular to sides RS and TU.
Side UR is not parallel or perpendicular to any other side.

The quadrilateral is a trapezoid.
3 0
3 years ago
URGENT PLEASE HELP ME! I NEED THIS DONE AND DONT KNOW HOW TO DO IT
ANTONII [103]
29.10 for the first question radius
6 0
4 years ago
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