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3 years ago

Help me so i can go eat lunch <3 ( question 2)

Mathematics

1 answer:

LekaFEV [45]3 years ago

8 0

<h3>Answer: Choice B</h3>

Doug borrowed $2 from his friend every day from Monday through Friday. How much money does Doug owe in all?

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Explanation:

The notation 5(-2) is the same as saying "5 times negative 2"

The negative represents the amount of debt that Doug goes into when borrowing that $2. When borrowing the same amount over the course of 5 days, he'll be in debt a total of 10 dollars. So we'd write -10 to represent this.

You could also write it out the longer way

-2 + (-2) + (-2) + (-2) + (-2) = -10

There are five copies of "-2" being added up to arrive at -10

Though it's much simpler to say

5(-2) = -10

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If Jason spend 2 2/3 hours more at the camp, he will complete 7 hours of camp counseling. How many hours has he worked as a coun

Levart [38]

Answer: so you subtract 7- 2 2/3 and you get 4 1/3 so there is your answer Jason worked 4 1/3 hours

Step-by-step explanation:

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3 years ago

Solve for u. -4+2 u = -10 Simplify your answer as much as possible.

aliya0001 [1]

Answer:

u = -3

Step-by-step explanation:

Step 1: Write equation

-4 + 2u = -10

Step 2: Solve for u

Add 4 to both sides: 2u = -6

Divide both sides by 2: u = -3

Step 3: Check

Plug in x to verify if it's a solution.

-4 + 2(-3) = -10

-4 - 6 = -10

-10 = -10

3 0

3 years ago

In 1000 sq. meter of land a farmer cultivated 765 kg of rice with the wastage of 23.5%. I) Find the weight of the wastage. II) F

LenKa [72]

Answer:

i. 179.775 kg

IIa)the weight=585.225 kg

IIb) percentage=75.6%

3)=30240 kg

Step-by-step explanation:

From the question were given the total area of the land as 1000 sq. meter

Amount of cultivated rice= 765 kg

the percentage of wastage rice =23.5%.

But we can convert the amount of the wastage rice from percentage to kilogram which is

23.5/100=0.235

Then to kilogram 0.235× 765 kg= 179.775 kg

Then amount of wastage rice= 179.775 kg

I)Find the weight of the wastage. ?

The amount of wastage rice is the conversion of it's percentage to kilogram which I did above

Then amount of wastage rice= 179.775 kg

II) Find the weight and percentage of rice cultivated.

Since we know amount of wastage as 179.775 kg, then the amount of cultivated will b difference between the cultivated and wastage=765 - 179. 775 = 585.225 kg

Then it's percentage is the substraction of the percentage of wastage from 100%

= 75.6%

3)If the area has been increased 40 times in size, how much rice will be cultivated (excluding the wastage)

Increase in the land in 40 times= 40×1000= 40,000sm

Then the rice cultivated= 75.6% ×40000

=30240 kg

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3 years ago

How to do expected frequency for chi^2 goodness fit test

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Chi-square Goodness of Fit Test.
Value Observed frequency Expected frequency
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Step-by-step explanation:

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