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Oksana_A [137]
3 years ago
9

Solve the rational equation

Mathematics
1 answer:
Vesna [10]3 years ago
6 0

Answer:

only x=1

Step-by-step explanation:

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4x-9=7x+12(if there is no solution,type in ''no solution'') x= Answer
kari74 [83]

Answer:

x = -7

Step-by-step explanation:

4x-9 = 7x+12

Add 9 to both sides

4x = 7x + 21

Subtract 7x from both sides to further isolate the variable

-3x = 21

Divide both sides by -3

x = -7

Plug the value in to check your work:

4(-7) - 9  ?  7(-7) +12

-28 - 9   ?  -49 + 12

-37   ?   -37

-37 = -37

6 0
3 years ago
Read 2 more answers
Given the similar hexagon-based prisms pictured below, if prism 2 has a surface area of 256 cm, what is the surface area prism 1
Bad White [126]

Using the hint that the ratio of surface areas is the scale factor squared, the surface area of prism 1 is 36 square cm

<h3>How to determine the surface area prism 1 using the hint that the ratio of surface areas is the scale factor squared?</h3>

From the figure, we have the following parameters

Prism 1 = 3 cm

Prism 2 = 8 cm

Calculate the scale ratio of dilation from prism 2 to prism 1 using the following equation

Scale ratio = Prism 1/Prism 2

Substitute the known values in the above equation

Scale ratio = 3m/8m

This gives

Scale ratio = 0.375

The surface area of prism 1 is then calculated using the following equation

Area of prism 2 = Scale ratio^2 * Area of prism 1

Substitute the known values in the above equation

Area of prism 2 = 0.375^2 * 256 square cm

Evaluate the product

Area of prism 2 = 36 square cm

Hence, the surface area of prism 1 is 36 square cm

Read more about surface area at

brainly.com/question/76387

#SPJ1

6 0
2 years ago
What is 25+x= 50<br> solve for x
arsen [322]
25+x = 50
x = 50-25
x = 25
8 0
4 years ago
Wich expression is equivelent to 4(3+5)-3times9 to the power of 2
77julia77 [94]

Answer:

-211

Step-by-step

8 0
3 years ago
The number of men in a tour group is 15 times the number of women. If there are 48 people in the group, how many are men? 45 30
elena55 [62]

48/15 = 3.2 round to nearest whole number (3)

48-3 = 45 men

5 0
4 years ago
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