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Inga [223]
3 years ago
14

Rewrite the equation for x, and express its value in terms of a. 3/a x-4=20

Mathematics
2 answers:
liraira [26]3 years ago
6 0

Answer:

x=8a

Step-by-step explanation:

We have to solve for x.

<h2>Steps:</h2>

Add 4 to each side

Multiply each side by a/3 so we can get x

Allushta [10]3 years ago
4 0

Answer:

x=8a

Step-by-step explanation:

3/a x-4=20

We need to solve for x

Add 4 to each side

3/a x-4+4=20+4

3/a x = 24

Multiply each side by a/3 so we can get x alone

a/3 *3/a x = 24 * a/3

x = 8a

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6 0
3 years ago
Read 2 more answers
How to solve -2/3 w+5=4
Romashka-Z-Leto [24]
- \frac{2}{3} w + 5 = 4

Refine:

5 -  \frac{2w}{3} = 4

Multiply both sides by 3 :

3 * 5 -3* \frac{2w}{3}  = 3*4

Refine:

15 - 2 w = 12

Subtract  15 from both sides:

15 - 2w - 15 = 12 - 15

- 2w = -3

Divide both side by -2 :

\frac{-2w}{-2} =  \frac{-3}{-2}

w =  \frac{3}{2}

hope this helps!.



7 0
3 years ago
Ann's watch runs 2 minutes per hour too slow. Beth's watch runs 1 minute per hour too fast. For example, if both watches were co
marysya [2.9K]

Please add the rest of the excercise in order to help you! Have a nice a day! :)

5 0
4 years ago
Prove that they are equal
Westkost [7]

Step-by-step explanation:

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Replace tanx with sinx/cosx:

(1-sinx/cosx)/(1+sinx/cosx)

Multiply numerator and denominator by cosx:

(cosx-sinx)/(cosx+sinx)

Multiply numerator and denominator by cosx-sinx:

(cos^2x-2sinxcosx+sin^2x)/(cos^2x-sin^2x)

For the numerator, since sin2x = 2sinxcosx, and sin^2x + cos^2x = 1, we have 1-sin2x

For the denominator, cos^2x - sin^2x = cos2x

So (1-tanx)/(1+tanx) = (1-sin2x)/cos2x

4 0
4 years ago
Aku minta tolong dengan ini
aleksley [76]

Answer:5

Step-by-step explanation:

321 123

5 0
1 year ago
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