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3 years ago

X+5/5=x+9/7 x equals?

Mathematics

2 answers:

satela [25.4K]3 years ago

8 0

X+5/5=X+9/7
-X. -X
5/5=9/7
there is no solution

bulgar [2K]3 years ago

7 0

X+5/5=x+9/7 x
5/5=1
9/7=1.29
X+1=X+1.29X
combine like terms
X+1=2.29X
minus X on both sides
1=1.29X
divide by 1.29 on both sides
.78=X
^^^i believe this is your answer

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pav-90 [236]

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Hope this helps!

7 0

1 year ago

around a square with diagonal d = 4.6 cm a circle is described. Calculate the perimeter of the circle

Nadya [2.5K]

Answer:

14.45cm2

Step-by-step explanation:

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2 years ago

Simplify. -9 -5 -7 х Y Z 2 6 3 X Y Z

krok68 [10]

Answer:

$= {x}^{ - 11} {y}^{ - 11} {z}^{ - 10}$

Step-by-step explanation:

$= \frac{ {x}^{ - 9} {y}^{ - 5} {z}^{ - 7} }{ {x}^{2} {y}^{6} {z}^{3} } \\ = {x}^{ - 9 - 2} {y}^{ - 5 - 6} {z}^{ - 7 - 3} \\ = {x}^{ - 11} {y}^{ - 11} {z}^{ - 10}$

7 0

3 years ago

A car is towed using a force of 1600N. The rope used to pull the car makes an angle of 25∘ with the horizontal. Find the work do

mezya [45]

Answer: 2900185 Joules

Step-by-step explanation:

Force used to tow the car is 1600N

Angle(α)= 25

Displacement = 2km

Recall that 1km= 1000m

Therefore 2km= 2000m

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W= 1600 * 2000 * cos 25

W=2900184.919

W= 2900185 Nm(when approximated to the nearest integer)

Since 1J = 1Nm

Work done = 2900185 J

5 0

3 years ago

Please help. I know it’s not the hardest, but I think I did something wrong when I solved it. Please include your work. Tysm! Pl

Alex73 [517]

1 Multiply both sides by

−

3.2

n−3.2.

0.3

(

−

3.2

)

n+0.3=

(n−3.2)

2 Simplify

(

−

3.2

)

(n−3.2) to

(

−

3.2

)

9(n−3.2)

0.3

(

−

3.2

)

n+0.3=

9(n−3.2)

3 Multiply both sides by

0.6

(

−

3.2

)

2n+0.6=9(n−3.2)

4 Expand.

0.6

−

28.8

2n+0.6=9n−28.8

5 Subtract

2n from both sides.

0.6

−

28.8

−

0.6=9n−28.8−2n

6 Simplify

−

28.8

−

9n−28.8−2n to

−

28.8

7n−28.8.

0.6

−

28.8

0.6=7n−28.8

7 Add

28.8

28.8 to both sides.

0.6

28.8

0.6+28.8=7n

8 Simplify

0.6

28.8

0.6+28.8 to

29.4

29.4.

29.4

29.4=7n

9 Divide both sides by

29.4

10 Simplify

29.4

4.2

4.2.

4.2

4.2=n

11 Switch sides.

4.2

n=4.2

4 0

2 years ago

Read 2 more answers