Oliver interviewed 30% of the 9th grade class and 70% of the 10th grade class at his school. Jenny interviewed 75% of the 9th grade class and 25% of the 10th grade class at the same school. Oliver interviewed a total of 176 students and Jenny interviewed 140 students.

How many more 10th graders than 9th graders were interviewed?

A 36
B 80
C 12
D 200

Answers

Answer 1

Answer:

A. 36

Step-by-step explanation:

We are given a total of 176 interviewed by Oliver and a total of 140 interviewed by Jenny. To find how many more 10th graders than 9th graders were interviewed, subtract the totals given

176 - 140 = 36

This is how we came to the answer:

We are given 70% of the 10th-grade and 30% of the 9th-grade with a total of 176 for Oliver.

While we're given 75% of the 9th-grade class and 25% of the 10th-grade with a total of 140 interviewed by Jenny

Oliver's Interviewees

10-graders

Firstly, let's find what the number of 9th-graders was interviewed by Oliver; find the percentage of the 9th-graders by the total;

70% of 176 =

Cross multiply

123.2 were 10-graders interviewed by Oliver

9th-graders

Now, to find the number of 9th-graders was interviewed by Oliver; find the percentage of the 9th-graders by the total;

30% of 176 =

 

Cross multiply

52.8 were 9th-graders interviewed by Oliver

Jenny's Interviewees

9th-graders

Firstly, let's find what the number of 9th-graders was interviewed by Jenney; find the percentage of the 9th-graders by the total;

75% of 140 =

 

Cross multiply

105 students were 9th-graders interviewed by Jenney.

10th-graders

Now, to find the number of 10th-graders was interviewed by Jenney; find the percentage of the 10th-graders by the total;

25% of 140 =  

 

Cross multiply  

35 students were 10th-graders interviewed by Jenney.  

Total calculation

Use the results and sum them up by 9th-grade plus 9th-grade and 10th-grade plus 10-grade. Then subtract the amount gotten from 9th-grade away from the amount gotten from 10th-grade;

Oliver's 9th-grade = 52.8

Jenny's 9th-grade = 105

105 + 52.8 = 157.8

Oliver's 10th-grade = 123.2

Jenny's 10th-grade = 35

123.2 + 35 = 158.2

Total calculation: 158. 2 - 157.8 = 0.4

Therefore, there are 36 more 10th than 9th.

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Answer:

No solution

Step-by-step explanation:

I used this online calculator to find the answer. It shows the steps and everything.  https://www.symbolab.com/solver?or=gms&query=2x%2B3y%3D62x%2B3y%3D7

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

Step-by-step explanation:

For this case we have the following equation:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

Because 2x^2+4x-6 can be divided by 2, you can divide them by two. This would make the equation 2(x^2+2x-3). To factor this, you have to find two equation that would make it true. The equation have to be _+_=2 and _x_=-3. The two blanks would be 3 and -1. 3+-1=2 and 3x-1=-3. This means that the equation is 2(x-1)(x+3).

If you need an explanation tell me but if this answer helped you, pls mark as brainliest

Marking brainliest


What is your favorite form of getting exercise?

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Answer: Playing sports!!

Will give Brainliest!!!

In this passage, the phrase "territorial integrity"
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O for free political elections.
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O from attacks by other nations.

Answers

Answer: D) From attacks by other nations

Step-by-step explanation:

Answer: D. from attacks by other nations.

Step-by-step explanation:   TRUST ME!!! Answer correct on Edge!  :)

What is the least common denominator of 1/2, 2/3, and 3/4?

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Answers

Answer:

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Step-by-step explanation:

This is because 2, 3, and 4 can all go into the number and it is the smallest of the ones listed.

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Step-by-step explanation:

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If you buy a car for $349,985 and the car salesman gets 1/20 of the price of the car. How much will he get?

Answers

Answer:

$17499.25

Step-by-step explanation:

349,985*0.05=17499.25

Deltamath

Please help me I need help!!!!
⚠️Due today!!⚠️.

Answers

Answer:

(8,8)

Step-by-step explanation:

x coordinate:

10 + 6

16

16 / 2

8

y coordinate:

6 + 10

16

16 / 2

8

8,8

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Answers

Step-by-step explanation:

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hope it helps

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Answers

Answer:

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Step-by-step explanation:

Bi-weekly mortgage & taxes: 718/2 weeks = 2 x 718 = $1436/month

Condo fees: $525/month

Electricity bill bi-monthly $320/2 weeks = 2 x 320 = $640/month

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640 + 70 = $710

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Answers

Answer:

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Step-by-step explanation:

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Answer:

use ph0tomath it'll answer it for you and show how to do it

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Answer:

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Step-by-step explanation:

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K
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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

12/2.54 ≈ 4.72 inches

Answer: 4.72 inches

How?

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Find the area of the shaded sector. Round to the nearest hundredth

Answers

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answer

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

Step-by-step explanation:

A

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Answers

Answer:

Fouls > Average Fouls

Step-by-step explanation:

Null Hypothesis [ H0 ] : Fouls = Average Fouls ie 11.5

Alternate Hypothesis [ H1 ] : Fouls > Average Fouls

t =  ( x - u ) / ( s / √n )

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(Note: when you make purchases, like buying a soda, it comes out of your checking account)

A. She has $100 in savings and $95 in checking
B. She has $143 in her savings account and $50 in checking
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Answers

Answer:

150+93=241

Step-by-step explanation:

I'm not sure if this is correct but i guess because she got 95 and deposited it into her checking she has 95 and judging on if she spent 2 dollars from her savings or checking i assumed it was savings which leaves it with 148 from 100 after depositing 50 - 2 = 148 so basically

edit: nvm i saw the note now im sure but something i dont understand is that if she made 95 how come the answer choices dont say 93 in checking so im guessing you meant 150+43=193

193 is your answer sorry lol took me a while to work this out or Answer choice C

PLS HURRY
Jaime rode her bike 5 miles north to the park to meet a friend. Then they rode east to the library. If Jaime's house is 13 miles from the library, about how far is the library from the park?

Answers

The distance from library and the park is 12 miles.

What is trigonometric Ratios?

"Trigonometric Ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle. It is with respect to any of its acute angles are known as the trigonometric ratios of that particular angle".

For the given situation,

Jaime ride her bike in north = 5 miles

Jaime ride her bike in east = 13 miles

The distance from library and the park be x.

The below diagram shows about the Jaime's riding.

The distance from library and the park can be find by using Pythagoras theorem,

[tex]Hypotenuse^{2} = Perpendicular^{2} + base^{2}[/tex]

On substituting the above values,

⇒ [tex]13^{2} = 5^{2}+x^{2}[/tex]

⇒ [tex]x^{2} =169-25[/tex]

⇒ [tex]x^{2} = 144[/tex]

⇒ [tex]x=\sqrt{144}[/tex]

⇒ [tex]x=12[/tex]

Hence we can conclude that the distance from library and the park is    12 miles.

Learn more about trigonometric ratios here

brainly.com/question/9085166

#SPJ2

Round 2,034,627,105 to the nearest ten thousand.

Answers

Answer:

Heyaa!! My name is Pinky and i'm here to inform you that you're answer is...

Step-by-step explanation:

!!! 2,034,630,000 !!!

My calculations are:

You first look at the ten thousands place which is 27,105 and if you look to the right of the 2,

you see 7.5 and up round up 4 and down round down.

7 is 5 and up so, you round up to 2,034,630,000!!

Have a Nice Day!!

 ~Pinky~

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