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3 years ago

What is (2.3x10^-3)/(4.6x10^-7) written in scientific notation? Please show how you solved this.

1 answer:

5 0

(2.3*10^-3) / (4.6*10^-7)

(2.3*0.001) / (4.6*0.0000001) *10^-3=0.001 & 10^-7=0.0000001*

(0.0023) / (0.00000046) *2.3*0.001=0.0023 & 4.6*0.0000001=0.00000046*

5000 *0.0023/0.00000046*

So the answer is 5000

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Determine whether the ordered pair is a solution of the linear equation. y=x-1/2,(15,-2)

Veronika [31]

Answer:

no its not.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

a person runs at a constant speed of 9.2 miles per hour for 6 minutes and 30 seconds. How far did they travel in yards.

ipn [44]

Given:

Speed $= \bold{9.2 \ \frac{miles}{hour}}$

$\therefore \\\\$

1-hour= 60 minutes

1-minutes=60 second

1-hour= 3600 second

Converting the given time into seconds:

Time= 6 minutes and 30 second

$=\bold{6\times 60 \ second + 30 \ second }\\\\=\bold{360\ second+30\ second}\\\\=\bold{390\ second}\\\\$

When 3600 seconds covers=9.2 miles

Then equation:

$=\bold{\frac{9.2}{3600}}\\\\$

390 seconds covers:

$=\bold{\frac{9.2}{3600}\times 390 \ miles} \\\\$

Let

$\bold{1 \ miles= 1760\ yard}\\\\$

Convert the traveling value into yards:

$=\bold{ \frac{9.2}{3600}\times 390\times 1760}\\\\=\bold{ \frac{9.2}{36}\times 39\times 176}\\\\=\bold{ \frac{9.2}{12}\times 13\times 176}\\\\=\bold{ \frac{9.2}{12}\times 2288}\\\\=\bold{ 9.2\times 190.66}\\\\=\bold{ 1754.072\ yards}\\\\$

Therefore, total traveling yards are"1754.072".

Learn more:

brainly.com/question/20282942

7 0

3 years ago

Read 2 more answers

Which expression is equivalent to 6 x 2/3? a. 3 x 1/3 b. 4 x 1/3 c. 8 x 1/3 d. 12 x 1/3

sesenic [268]

D. 12 x 1/3

You just had to multiply 6 x 2/3 which gives you 4.

Then, multiply all of your answer choices and see which one also gives you 4. D is the only one.

6 0

4 years ago

Find the rate of ounces of what I need for each packages of flavoring

Vitek1552 [10]

4. 12×23= 276 ounces for 23 packages of flavoring

6 0

3 years ago

Find the solution of the system of equations. 3x-8y = 19 3x + 5y = -46

sattari [20]

(-7,-5)

Step-by-step explanation:

3x-8y = 19

minus

3x + 5y = -46

0x - 13y = 65

- 13y = 65

÷-13

y = - 5

Substitute y = - 5 into one of the functions:

3x-8y = 19

-8 x - 5 = 40

3x + 40 =19

-40

3x. = - 21

÷3

x= - 7

Solution is (-7,-5)

Hope this helps!

4 0

3 years ago