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Alekssandra [29.7K]
3 years ago
10

You use 4 boxes of rice to serve 13 people. If you want to serve 39 people, what should you do?

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
5 0
YOU SHOULD MAKE MORE RICE
3x's more rice!
MAXImum [283]3 years ago
4 0

Answer:

Use 3 times as many boxes of rice

Step-by-step explanation:

we know that

Using proportion

\frac{4}{13}\frac{boxes}{people}=\frac{x}{39}\frac{boxes}{people} \\ \\x=39*4/13\\ \\x=12\ boxes

original quantity of boxes ----->  4

boxes needed ----->  12

12=3*(4)

therefore

Use 3 times as many boxes of rice

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I don’t understand please help?
Lerok [7]

Answer:

D

Step-by-step explanation:

Cuz sqr root of 20 = 2 sqrt 5, -2 sqrt 5

7 0
3 years ago
Steven conjectures that for |x|>5, it is true that x^3>125. Is his conjecture correct? Why or why not?
vredina [299]

Conjectures are conclusions formed from evidences. Steven's conjecture that: x^3 > 125 is true because: x > 5 or x > -5 for |x| > 5

Given that:

|x| > 5

Split the inequality as follows:

x > 5 or x > -5

Take the cube of both sides

x^3 > 5^3 or x^3 > -5^3

Evaluate all exponents

x^3 > 125 or x^3 > -125

Steven's conjecture that: x^3 > 125 is true because:

x > 5 or x > -5 for |x| > 5

Read more about absolute inequalities at:

brainly.com/question/4688732

5 0
3 years ago
If u = -8i + 7j, what is the magnitude of -5u? Simplify any radicals.​
lubasha [3.4K]

Answer:

- 5 \sqrt{113}

Step-by-step explanation:

Find the magnitude of the complex number

Notice the magnitude is equal to

u = \sqrt{ {a}^{2}  +  {b}^{2} }

where a is the real number and b is the imaginary number.

Substitute

u =  \sqrt{ - 8 {}^{2}  + 7 {}^{2} }

u =  \sqrt{64 + 49}

u =  \sqrt{113}

Multiply this by -5

- 5 \sqrt{113}

7 0
2 years ago
The number of entertainment websites in 1995 was 54. By 2004, there were 793 entertainment websites.
Bingel [31]

Answer:

82 websites per year.

Step-by-step explanation:

take the difference in the number of websites from both years, divide it by the year difference (9) to find how many per year were created

4 0
3 years ago
5. Diego is 165 cm tall. Andre is 1.7 m tall. Who is taller, Diego or Andre? Explain your reasoning?
Marrrta [24]

Answer:

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Step-by-step explanation:

there is 100 cm in a meter. So diego would be 1.65 meters

5 0
3 years ago
Read 2 more answers
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