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harina [27]
2 years ago
8

Solve the formula for the indicated variable D=ABC for A

Mathematics
1 answer:
vfiekz [6]2 years ago
4 0

The value of A=\dfrac{D}{BC}.

Step-by-step explanation:

Given that,

An expression, D=ABC

To find,

Solve the expression for A.

Solution,

We have,

D=ABC

Dividing both sides of the given equation for BC. So,

\dfrac{D}{BC}=\dfrac{ABC}{BC}\\\\A=\dfrac{D}{BC}

So, the value of A is,A=\dfrac{D}{BC}.

Reference,

brainly.com/question/2741436

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To clean windows of skyscrapers, some companies use a carriage. A carriage is mounted on a railing on the rook of a skyscraper a
sertanlavr [38]

Answer: -9 OR 15 (See explanation)

Step-by-step explanation:

Substitute 4 for t since t represents hours:

0.75t - 12 --> 0.75(4) - 12 =

3 - 12 =

-9

Something seems off, if you meant to put +12 instead of -12, then the answer is 15. Hope this helps, please consider making me Brainliest.

3 0
1 year ago
What is the solution to the above system of equations?
kow [346]

(x , y) = (7, - 1)

2x + 3y = 11 → (1)

3x + 3y = 18 → (2)

subtracting (1) from (2) term by term eliminates the y- term

(3x - 2x) + (3y - 3y) = (18 - 11)

x + 0 = 7 ⇒ x = 7

substitute x = 7 into either of the 2 equations and solve for y

(1) → (2 × 7) + 3y = 11

14 + 3y = 11

subtract 14 from both sides

3y = 11 - 14 = - 3

divide both sides by 3

\frac{- 3}{3} = - 1

solution is (7 , -1)


8 0
3 years ago
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(1-5z)(2-5z)=(1−5z)(2−5z)=
miss Akunina [59]

Answer: 0

<u>Simplify both sides of the equation</u>

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<u></u>

<u>Subtract 25z² from both sides</u>

<u></u>25z^2-15z+2-25z^2=25z^2-15z+2-25z^2<u></u>

<u></u>-15z+2=-15z+2<u></u>

<u></u>

<u>Add 15z to both sides</u>

<u></u>-15z+2+15z=-15z+2+15z<u></u>

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<u></u>

<u>Subtract 2 from both sides</u>

<u></u>2-2=2-2<u></u>

<u></u>

Final Answer: 0=0

<u></u>

3 0
3 years ago
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bezimeni [28]

Answer:

x=5/4

Step-by-step explanation:

Isolate x!

4x=5

x=5/4

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