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3 years ago

14

each person in Ellen's family drinks 8 1/3 ounces of water. If 5 people are in Ellen's familly., how many ounces of watet do the

y drink altogethet?

2 answers:

Pavlova-9 [17]3 years ago

4 0

Answer is 43 5/3 because multiply 8 1/3 into 5 ...

Travka [436]3 years ago

3 0

One person drinks 25/3 ounces. Multiplied by 5 is, 125/3. Then it’s 41 2/3. The answer is 41 2/3

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Given that a = 4.8 × 104 and that b = 8 × 10−3

Paha777 [63]

Answer:

3.84 * 10^0

Step-by-step explanation

Given the following values;

a = 4.8 × 104 and that b = 8 × 10−3

We are to find the product ab

ab = (4.8 × 10^4)(8 × 10^−3)

ab = (4.8*8)(10^4 * 10^-3)

ab = 38.4 * 10^(4-3)

ab = 38.4 * 10^-1

ab = 3.84 * 10 * 10^-1

ab = 3.84* 10^0

<em>Hence the product in standard form is expressed as 3.84 * 10^0</em>

8 0

3 years ago

Can you see an easy way to work out the value of <img src="https://tex.z-dn.net/?f=%5Csqrt%7B%201%5E3%20%2B%202%5E3%20%2B%203%5E

Lina20 [59]

We have the sum of cubes identity

$a^3 + b^3 = (a + b) (a^2 - ab + b^2)$

and observing that 1 + 4 = 2 + 3, we have

$1^3 + 4^3 = (1 + 4) (1^2 - 4 + 4^2) = 5 \times 13$

and

$2^3 + 3^3 = (2 + 3) (2^2 - 6 + 3^2) = 5 \times 7$

Then

$\sqrt{1^3+2^3+3^3+4^3+5^3} = \sqrt{5\times13 + 5\times7 + 5\times5^2} = \sqrt{5 \times (20 + 25)} \\\\ ~~~~~~~~ = \sqrt{5^2 \times (4 + 5)} = \sqrt{5^2\times9} = \sqrt{5^2\times3^2} = 5\times3 = \boxed{15}$

Alternatively, we have the well-known sum of cubes formula

$\displaystyle \sum_{i=1}^n i^3 = \frac{n^2(n+1)^2}4$

The sum under the square root is this sum with $n=5$ . Then

$1^3+2^3+3^3+4^3+5^3 = \dfrac{5^2\times6^2}4 = 225 = 15^2$

and so the square root again reduces to 15.

5 0

2 years ago

2.6 written as a reduced fraction?

beks73 [17]

13/5 or 2 3/5 by the way nice profile picture

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3 years ago

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The vine in the pumpkin patch grow 10 feet every 40 days. How many feet does it grow in one day?

Hunter-Best [27]

10 : 40

divide each side by 40

0.25 : 1

It grows 1/4th of a foot in one day.

6 0

3 years ago

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I need help! It’s for a quiz I need an answer today please!

shutvik [7]

13.5•18 = 243 inches squared

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3 years ago