3 years ago

What is 48,100,000,000,000 in scientific notation?

Mathematics

1 answer:

Over [174]3 years ago

3 0

It's D. scientific notation is in the form of n x 10^m, with n any number between 1 to 10.

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The sum of two numbers is 21,and their difference is 9

Ghella [55]

let's say the two numbers are x and x + 9. so we know x + x + 9 = 21, so 2x + 9 = 21. subtract 9 from both dies to get 12 = 2x. divide both sides by 2 to get x = 6. so your two numbers are 6 and 15.

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3 years ago

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Tina is finding the quotient of. Is she correct? If not, what changes should be made?

Mice21 [21]

For this case, we must find the quotient of

$(15x ^ 3 + 12x ^ 2-9x)$ divided by $3x$ , to verify if Tina was correct.

So:

$\frac {15x ^ 3 + 12x ^ 2-9x} {3x} =\\\frac {15x ^ 3} {3x} + \frac {12x ^ 2} {3x} - \frac {9x} {3x} =\\5x ^ 2 + 4x-3$

So, Tina was wrong, she had to divide by 3x.

Answer:

Option B

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3 years ago

15.12 for 12 hamburgers per burger

SSSSS [86.1K]

Answer:

15.12 ÷ 12 = 1.26 per burger

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3 years ago

Vonna scored 35 goals at soccer practice. Her ratio of goals to misses was 5:8. How many times did she miss?

Digiron [165]

Answer: She misses 56 times at a soccer practice.

Step-by-step explanation:

Let the goals she misses be 'x'.

According to the question:

$5:8::35:x$

These two ratios follow direct relationship, so:

$\frac{5}{8}=\frac{35}{x}\\\\5x=35\times 8\\\\x=\frac{280}{5}\\\\x=56$

Hence, Vonna misses 56 times at a soccer practice.

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3 years ago

Solve for x. 2x+3y=20 -2x+y=4

Mama L [17]

Answer:

x = 1

Step-by-step explanation:

-2x + y = 4

y = 2x + 4

2x + 3y = 20

2x + 3(2x + 4) = 20

2x + 6x + 12 = 20

8x + 12 = 20

8x = 8

x = 1

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2 years ago