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3 years ago

Describe how to multiply a number by a power of 10

1 answer:

6 0

When multiplying a number by the power of 10, you are multiplying that number by itself 10 times. EX: 5^10 = 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5 * 5

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Owens birthday cake weights 6 T. (LOL). How many pounds does it weigh?

Inga [223]

Answer:

12000 pounds is your answer

8 0

2 years ago

jeromes rain gauge showed 13 9/10 centimeters at the end of last month. at the end of this month, the rain gauge showed 15 3/10

Ne4ueva [31]

It rained 1 and 4/10 centimeters. You have to first figure out what adds up to 14, which is 1/10. Then you add 1 to get 15 and 3/10 to get 15 3/10.

3 0

3 years ago

If x+y=9, and 8(x+3y)= 120, what is the value of x-y

Triss [41]

Answer:

Explanation:

Apply Multiplicative Distribution Law:

{x + y =9

{8x + 24y = 120

Reduce the greatest common factor on both sides of the equation.

{x + y = 9

{x + 3y = 15

Subtract the two equations: x + y - (x +3y) = 9 - 15

Remove paranthesis: x + y - x - 3y = 9 - 15

Cancel the unknown variables: y - 3y = 9 - 15

Combine like terms: -2y=9 - 15

Calculate the sum or difference: -2y = -6

Reduce the greatest common factor on both sides of the equation: y =3

Substitute one unknown quantity into the elimination: x + 3 = 9

Rearrange unknown terms to the left side of the equation: x = 9 - 3

Calculate the sum or difference: x = 6

Write the solution set of equations: {x = 6

{y = 3

Substitute: 6 - 3

Calculate the sum or difference: 3

Answer: 3

6 0

2 years ago

Please help! thanks :)

jeka94

Answer:

B- 583

Step-by-step explanation:

6% of 550 is 33. So, you just add 33 to 550 which equals 583.

Your welcome!

3 0

2 years ago

The battery standby duration (in hours) of a new model of cell phone is known to be normally distributed. Ten pieces of such new

Stells [14]

x = number of hours

want to find probability (P) x >= 13

x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.

P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413

To convert that to percentage, multiply 100, to get 84.13%

3 0

2 years ago