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Alisiya [41]
3 years ago
7

16= -5+z/4 a. 69 b. -1 c. 9 d. 59

Mathematics
2 answers:
OverLord2011 [107]3 years ago
7 0
16 = \frac{-5+z}{4}

Multiply both sides by 4

16\times 4 = \frac{-5+z}{4} \times 4

64 = -5+z

Rearrange the terms

64 = z - 5

Add 5 on both sides.

64 + 5 = z - 5 + 5

\boxed{\bf{z = 69}}


Your final answer is a. 69.
vlada-n [284]3 years ago
6 0
If you would like to solve the equation 16 = (- 5 + z) / 4, you can do this using the following steps:

16 = (- 5 + z) / 4       /*4
16 * 4 = - 5 + z
16 * 4 + 5 = z
 z = 69

The correct result would be a. 69.
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Dara ran on a treadmill that had a readout indicating the time remaining in her exercise session. When the readout indicated 24
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Answer:

The correct option is E. 16 min 12 sec.

Step-by-step explanation:

Consider the provided information.

When the readout indicated 24 min 18 sec, she had completed 10% of her exercise session.

That means 24 min 18 sec is 90% of her exercise time.

First convert the 24 min 18 sec into seconds:

24 min 18 sec = 1440+18 = 1458 seconds

Let x represents the 100%.

\frac{1458}{x}=\frac{90\%}{100\%}

x=\frac{1458}{0.9}

x=1620

That means the total time of workout was 1620 seconds or 27 minutes.

Now she had completed 40% of her exercise session, that means the readout will indicate 60% of the time.

Calculate the 60% of 1620 as shown:

1620\times \frac{60}{100}=972

Now convert 972 seconds into minutes as shown:

972 seconds = 960 seconds + 12 seconds = 16 min 12 seconds

Hence, the correct option is E. 16 min 12 sec.

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What number goes into 88 and 100?
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For f(x)=x/4-3 and g(x)=4x^2+2x-4 find (f+g)(x)
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John wrote that 5+5=10.
Anvisha [2.4K]

By the additive property of equality, the equations John wrote are equivalent.

<h3>Additive property of equality: Determining equivalent equations</h3>

From the question, we are to determine if the equations John wrote are equivalent.

From the given information,

John wrote that

5 + 5 = 10

Then,

He added n to both sides of the equation to get

5 + 5 + n = 10 + n

From the Additive property of equality, we have that

"<em>If we add or subtract the same number to both sides of an equation, the sides remain equal</em>."

Since, John added the same number, n, to both sides of the equation, the equations John wrote are equivalent.

Learn more on Determining equivalent equations here: brainly.com/question/21765596

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