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2 years ago

11

Multiply and write the result in Scientific notation

1 answer:

Masja [62]2 years ago

6 0

6 x 10^7. Add exponents

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How would you write the function shown in the function machine in function notation

kow [346]

Wow. this is too difficult for me

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3 years ago

You and your friend are making 30 liters of sodium water. You have liters of 10% sodium and your friend has liters of 22% sodium

iren [92.7K]

X liters of 10% + (30 - x) liters of 22% = 30 liters of 15%

<span>Plugging in the numbers </span>
<span>x(10) + (30 - x)22 = 30(15) </span>

<span>Distribute </span>
<span>10x + 660 - 22x = 450 </span>

<span>Combine like terms </span>
<span>-12x = -210 </span>

<span>Divide both sides by -12 </span>
<span>x = 17.5 </span>
<span>30 - x = 12.5 </span>

<span>17.5 liters of 10% + 12.5 liters of 22% = 30 liters of 15%

THE TRICK IS TO JUST USE ONLY ONE VARIABLE</span>

4 0

3 years ago

Find x <br><br> please help i’ll mark the first one or whoever right brainliest

Svetllana [295]

Answer: 86

Step-by-step explanation:

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2 years ago

What is the first quartile of the data displayed in the box-and-whisker-plot?

julsineya [31]

The answer is 37.
Explanation:
first quartile is where the box starts at

4 0

3 years ago

Given: ∠A and ∠B are complementary angles.

Eddi Din [679]

Answer:

- For the statement $-3x=24$ , the reason is: <em>Subtraction property of Equality</em>

- For the statement $x=-8$ , the reason is: <em>Division property of Equality.</em>

- For the statement $m\angle B=-6(-8)-39$ , the reason is: <em>Substitution property of Equality.</em>

Step-by-step explanation:

The missing pictures are attached.

We must remember that:

- The Subtraction property of Equality states that:

$If\ a=b,\ then\ a+c=b+c$

- The Division property of Equality states that:

$If\ a=b,\ then\ \frac{a}{c}=\frac{b}{c}$

- The Substitution property of Equality states that:

$If\ a=b,\ then\ b\ can\ replace\ a$

Knowing this properties we can identify the missing reasons that correctly complete the proof.

- For the statement $-3x=24$ , the reason is:

Subtraction property of Equality

(Because it is obtained by subtracting 66 from both sides of $-3x+66=90$ )

- For the statement $x=-8$ , the reason is:

Division property of Equality

(Because it is obtained by dividing both sides of $-3x=24$ by -3)

- For the statement $m\angle B=-6(-8)-39$ , the reason is:

Substitution property of Equality

(Because it is obtained by substituting the value of "x" into $m\angle B=-6x-39$ )

7 0

3 years ago