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Finger [1]
3 years ago
15

Solve please. Brainliest for best answer.

Mathematics
2 answers:
Serhud [2]3 years ago
5 0

Answer:

x=7 this is what I got on

NikAS [45]3 years ago
4 0

Answer:

x=7

Step-by-step explanation:

3ˣ⁻⁵=9

3ˣ⁻⁵=3²

x-5=2

x=2+5

x=7

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Need asap for a test !! Which of these tables represents a function?
Dominik [7]
We can’t see the tables unless you upload a picture :)
8 0
3 years ago
Susan was writing a paper for English, and she thought it was going to take her 4 hours to write. In fact, it took her 6.5 hours
Goryan [66]

Answer:

61.5%

Step-by-step explanation:

i could be wrong

7 0
3 years ago
Read 2 more answers
Rewrite the following equation in slope-intercept form.<br><br> –3y + 5 = –4x
snow_lady [41]

Answer:

4x+3y=5

Step-by-step explanation:

Subtract  

4

x

from both sides of the equation.

3y = 5− 4x

Divide each term by  3 and simplify.

y= −4x 3+53

Rewrite in slope-intercept form.

y

=

−

4

3

x

+

5

3

4 0
2 years ago
Read 2 more answers
How many grams of NH3 are required to produce 4.65 g of HF
nignag [31]

1.326 grams of NH3 are required to produce 4.65 g of HF.

Step-by-step explanation:

Balanced chemical reaction is written first to know the number of moles taking part in original reaction.

NH3 +3 F2 ⇒3 HF  +  NF3

Given:

mass of HF = 4.65

First the number of moles of HF in 4.65 grams is calculated by using the formula:

number of moles (n) = \frac{mass}{atomic mass of 1 mole}

atomic mass of HF = 20 grams/mole

putting the values in the above equation number of moles can be found.

n = \frac{4.65}{20}

  = 0.235 moles of HF are given.

From the equation it can be said that:

1 mole of NH3 reacts to form 3 moles of HF

so, x moles of NH3 would react to form 0.235 moles of HF

\frac{3}{1} = \frac{0.235}{x}

3x = 0.235

x = \frac{0.235}{3}

x = 0.078 moles of NH3 is required.

The moles are converted to mass by applying the formula:

mass = atomic mass X number of moles (atomic mass of NH3 = 17 grams/mole)

        putting the values in the formula

mass = 17 X 0.078

mass = 1.326 grams

8 0
2 years ago
Dara ran on a treadmill that had a readout indicating the time remaining in her exercise session. When the readout indicated 24
Nat2105 [25]

Answer:

E. 16 min 12 sec

Step-by-step explanation:

Let x represent total time taken to complete the exercise.

We have been given that Dara ran on a treadmill that had a readout indicating the time remaining in her exercise session.

When the readout indicated 24 min 18 sec, she had completed 10% of her exercise session. This means that 90% time of exercise is equal to 24 minutes and 18 seconds.

18 seconds will be equal to 0.3 minutes.

Let us find total time of exercise as:

\frac{90}{100}x=24.3

0.90x=24.3

\frac{0.90x}{0.90}=\frac{24.3}{0.90}

x=27

To find readout when Dara had completed 40% of her exercise session, we need to find 60% of total time.

\frac{60}{100}(27)=0.60(27)=16.2

Since our time in in minutes, so we will convert 0.2 minutes to seconds by multiplying by 60.

0.20(60)=12

Therefore, the readout will indicate 16 minutes 12 seconds, when Dara had completed 40% of her exercise session.

8 0
3 years ago
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