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atroni [7]
3 years ago
10

Given 16 = −5 + z4solve for z

Mathematics
2 answers:
AysviL [449]3 years ago
8 0
Hi,

16 = - 5 + z4 \\ - 4z + 16 = - 5 \\ - 4z = - 5 - 16 \\ - 4z = -21

Now just divide both sides of equation by -4.

z = \frac{21}{4}

Simplify:

z = 5 \frac{1}{4} \: \: \: \: \: \: \: \: \: \: \: \: \: fraction \: result

Decimal form:

z = 5.25 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: decimal \: result

Hope this helps.
r3t40
dmitriy555 [2]3 years ago
3 0

69 is the answer that makes the most sense. all the rest would not add up

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weeeeeb [17]

Answer:

the solution of given rational equation is x= 3/2

Step-by-step explanation:

\frac{x}{2x-1}+\frac{1}{4} = \frac{2}{2x-1}

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Finding LCM of 4 and (2x-1) we get 4(2x-1).

Multiplying 4(2x-1) on both sides of equation and solving

\frac{x}{2x-1}*4(2x-1)+\frac{1}{4}*4(2x-1) = \frac{2}{2x-1}*4(2x-1)\\4x+2x-1=8\\6x-1=8\\6x=8+1\\6x=9\\x=9/6\\x=3/2

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6 0
3 years ago
pleaseeeeeeee HELPPPPPPPPPPPp In a parking lot, 25% of the cars are SUVs, and 40% are pickup trucks. The rest of the cars are se
Arisa [49]

Answer:

60 cars

Step-by-step explanation:

In order to find how many total cars are in the parking lot, you must use a ratio. This is what you know:

25% = SUVs

40% = pickups

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100% - (25% + 40%) = 35%. Thus, the remaining 35% of the cars are sedans. Now, we use a ratio to find the TOTAL number vehicles. See below:

X/65% * 21/35% = 35x = (21x65) = 1,365 (Hint: remember cross-multiplying??)

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x = 1,365/35

x = 60 total cars

Sanity check:

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40% of 60 = 24 pickups

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8 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Yakvenalex [24]

Answer:

-3

Step-by-step explanation:

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8 0
4 years ago
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