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Ipatiy [6.2K]
2 years ago
13

In a certain freshman class, the number of girls is 83 less than twice the number of boys(b). The total number of students in th

at freshman class is 259. How many boys and girls are in that class.
Mathematics
2 answers:
Setler79 [48]2 years ago
8 0

Answer:

Boys = 114

Girls = 145

Step-by-step explanation:

Boys = b

Girls = 2b-83

b+2b-83=259

3b=259+83

3b=342

b=114

Boys = b = 114

Girls = 2b-83=228-83=145

ladessa [460]2 years ago
3 0

Answer:

Boys = 114

Girls = 145

Step-by-step explanation:

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Araba bought an electric Cooker for 540.00 ghanacedis at a discount of 10%.Find the actual price of the eletric cooker.
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Actual price = 540*(100/90)=600
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2 years ago
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how many 5 letter combinations can be created from the letters in the world “friendly” assume that the order of the letters does
Artyom0805 [142]

Answer:

Number of combinations = 56

Step-by-step explanation:

Points to remember

nCₐ = n!/(r!(n - r)!)

The given word is "FRIENDLY"

F R I E N D L Y is a 8 letter word.

<u>To find the number of combinations</u>

5 letters can be selected from 8 letter = 8C₅

8C₅ = 8!/(8 - 5)!5!

 = 8!/3!5!

 = (8 * 7 * 6* 5!)/(1 * 2 * 3 * 5!)

 = 8 * 7

 =  56

5 letter combinations can be created from the letters in the world “friendly = 56

4 0
3 years ago
Rectangle PQRS is dilated by a scale factor of 2 (k=2) with the origin as the center. What are the coordinates of R('?
Radda [10]

Answer:

Correct Answer: (8,2)

Step-by-step explanation:

<u>Dilation about the origin</u>

Most dilations in the coordinate plane use the origin, (0,0), as the center of the dilation.

In such cases, every point (x,y) dilated by a factor of k is mapped to the point (kx,ky).

The point R=(4,1) is dilated by a scale factor of 2 (k=2), thus the coordinates of its image are (2*4,2*1) = (8,2)

4 0
3 years ago
What is the measure of DE?
tatuchka [14]

Answer:

Step-by-step explanation:

Alright, lets get started.

The two chords are intersection each other at point B.

DBE=ABC

Both are opposite angles that is 39 degrees.

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The arc DE will be same length as arc AC because angle ABC and angle DBE are same that is 39 degrees.

So, arc DE = 41

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Hope it will help :)

5 0
3 years ago
Read 2 more answers
Which fraction has a terminating decimal as its decimal expansion?
alex41 [277]
'One third' as a decimal is 1 ÷ 3 = 0.333333..... ⇒ The decimal is recurring

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'One seventh'  as decimal 1 ÷ 7 = 0.142857142857.... ⇒ The decimal is recurring for every digit between 1 and 7

'One ninth' as decimal 1 ÷ 9 = 0.111111.... ⇒ The decimal is recurring 

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3 years ago
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