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3 years ago

You use 6 gallons of water on 20 plants in your garden. At that rate, how much water will it take to water 30 plants?

Mathematics

2 answers:

Eddi Din [679]3 years ago

7 0

9 because if you split the planta up into 10's, you would split the gallons into 3's. Thats 3 gallons per 10 plants

LenaWriter [7]3 years ago

7 0

To do this, set up a proportion. The proportion would be 6/20=x/30. To do this, multiply 30 by 6. This gives you 180. Now you want to divide 180 by 20. This gives you 9. It would take 9 gallons of water to water 30 plants.

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If someone could please help me, I want to make sure that the steps are correct.

Leya [2.2K]

Your answer would be the last option, c = √(E/m).

We can see this when we rearrange the equation, as:

E = mc²
÷ m
E/m = c²
√
√(E/m) = c

So you got all the steps in rearranging correct :)

I hope this helps!

7 0

3 years ago

App 19.study

lions [1.4K]

Answer:

$1 \to 22 \to 0.176$

$2 \to 13 \to 0.104$

$3 \to 18 \to 0.144$

$4 \to 29 \to 0.232$

$5 \to 37 \to 0.296$

$6 \to 6 \to 0.048$

Step-by-step explanation:

Given

$n = 125$

See attachment for proper table

Required

Complete the table

Experimental probability is calculated as:

$Pr = \frac{Frequency}{n}$

We use the above formula when the frequency is known.

For result of roll 2, 4 and 6

The frequencies are 13, 29 and 6, respectively

So, we have:

$Pr(2) = \frac{13}{125} = 0.104$

$Pr(4) = \frac{29}{125} = 0.232$

$Pr(6) = \frac{6}{125} = 0.048$

When the frequency is to be calculated, we use:

$Pr = \frac{Frequency}{n}$

$Frequency = n * Pr$

For result of roll 3 and 5

The probabilities are 0.144 and 0.296, respectively

So, we have:

$Frequency(3) = 125 * 0.144 = 18$

$Frequency(5) = 125 * 0.296 = 37$

For roll of 1 where the frequency and the probability are not known, we use:

$Total \ Frequency = 125$

So:

Frequency(1) added to others must equal 125

This gives:

$Frequency(1) + 13 + 18 + 29 + 37 + 6 = 125$

$Frequency(1) + 103 = 125$

Collect like terms

$Frequency(1) =- 103 + 125$

$Frequency(1) =22$

The probability is then calculated as:

$Pr(1) = \frac{22}{125}$

$Pr(1) = 0.176$

So, the complete table is:

$1 \to 22 \to 0.176$

$2 \to 13 \to 0.104$

$3 \to 18 \to 0.144$

$4 \to 29 \to 0.232$

$5 \to 37 \to 0.296$

$6 \to 6 \to 0.048$

5 0

3 years ago

1,868 to the nearest hundred

Citrus2011 [14]

Answer: 1,900

Step-by-step explanation:

You would round up to 1,900 because in the tens place is a 6 and when you have a number greater than or equal to 5 you round up. Hope this helps!

7 0

3 years ago

Emily has a babysitting job that pays $11 per hour. She wants to know how many hours she has to babysit to afford a

SCORPION-xisa [38]

Answer: 165=11h

Step-by-step explanation:

I believe it would be 165=11h because you have to multiply the number of hours she worked times 11 to get the amount that would equal 165!

5 0

3 years ago

Find the missing angle. Show all your work. Pls, answer!

slega [8]

Steps:
(n-2) * 180 = sum of interior angles
(3-2) * 180 = 180

Bottom Triangle
25 + 51 + x = 180
x = 104

Top Triangle
104 + 34 + x = 180
x = 42

Answer:
42

7 0

2 years ago