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Alexeev081 [22]
3 years ago
9

How do you solve 4x-7x=13

Mathematics
2 answers:
Rufina [12.5K]3 years ago
3 0


13=-3x

3x=-13

x=-13/3=-4 1/3

MissTica3 years ago
3 0
4x-7x=13
4*5-7*1=13
20-7=13
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sleet_krkn [62]
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3 years ago
I need help with algebra
rosijanka [135]

Answer:

x = -1 and y = 6

Step-by-step explanation:

using x = -b/2a

x = -4 / 2(2)

x = -1

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4 0
2 years ago
if your bicycle tire has a diameter of 9 inches. how many rotations does each tire make if you travel 300 feet?
Vesnalui [34]
Step One
Calculate the number of feet traveled in 1 rotation.

Formula
C = π*d
P = 3.14
d = 9 inches = 9/12 feet = 3/4 of a foot.

C = 3.14 * 3/4 = 2.355 So that means that every time the tire turns around 1 complete turn, the distance traveled on the ground is 2.355 feet.
 
Step Two
Figure out the number of revolutions.
1 revolution = 2.355 feet
x revolutions = 300 feet.

1/x = 2.355/ 300  Cross multiply
2.355 feet * x = 1 rev * 300 feet
2.355 x = 300 rev Divide by 2.355
x = 300 / 2.355 
x = 127.39 revolutions. <<<< Answer

8 0
3 years ago
8x55= hmmm what is this summ
Evgen [1.6K]

Answer:

440

Step-by-step explanation:

55x8. 8x5=40 carry the 4. 8x5=40+4=44 so it is 440

5 0
3 years ago
Read 2 more answers
Can someone help me I don't know how to do this!! Thank you
sdas [7]
The answer is 1 2/3 hope this helped

6 0
3 years ago
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