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3 years ago

What is z? 5z+8=4z+20 Once again im struggling and need help fast..=)

Mathematics

2 answers:

madreJ [45]3 years ago

7 0

5z+8=4z+20
-8 -8
5z=4z+12
-4z -4z
z=12

mixas84 [53]3 years ago

4 0

Z= 12 hope this helps

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4 years ago

The total source voltage in the circuit is 6-3i V. What is the voltage at the middle source

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Step-by-step explanation:

Voltage Sources in Series

When two or more voltage sources are connected in series, the total voltage is the sum of the individual voltages of each source.

The figure shown has three voltage sources of values:

$2 + 6\mathbf{i}$

$a + b\mathbf{i}$

$2 - 5\mathbf{i}$

The sum of these voltages is:

$V_t=4+a+(6+b-5)\mathbf{i}$

Operating:

$V_t=4+a+(1+b)\mathbf{i}$

We know the total voltage is $6-3\mathbf{i}$ , thus:

$4+a+(1+b)\mathbf{i}=6-3\mathbf{i}$

Equating the real parts and the imaginary parts independently:

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3 years ago

A number is divided by five. Then subtract 8. The result is 12. What was the original number?

zlopas [31]

Answer:

Step-by-step explanation:

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3 years ago