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3 years ago

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Two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and Section B had 20 students

who had a mean score of 90. Overall, what was the approximate mean score for all of the students on the quiz? *

1 answer:

OLga [1]3 years ago

3 0

Can you post a picture of the question your not that clear

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WHATS THE ANSWER?? answer ASAP NO FILE AT ALL

Zepler [3.9K]

Answer:

A

Step-by-step explanation:

4 0

3 years ago

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A car is purchased for 28,000 after each year, the resale value decreased by 25% what will be the resale value be after 3 years?

alisha [4.7K]

Answer:

11,812.5

Step-by-step explanation:

25% = 0.25

(YEAR ONE)

$28,000*0.25 -- > 21,000$

↓ (why?)

28,000 * 0.25 = 7,000

$28,000 - 7,000 = 21,000$

(YEAR TWO)

$21,000 * 0.25 -- > 15,750$

↓ (why?)

$21,000 * 0.25 = 5250$

$21,000 - 5,250 = 15,750$

(YEAR THREE)

$15,750 * 0.25 -- > 11,812.5\\$

↓ (why?)

$15,750 * 0.25 = 3,937.5\\15,750 - 3,937.5 = 11,812.5$

Answer = 11, 812.5

8 0

2 years ago

My number has two periods. One period contains the digit 3,0 and 6 in that order. The other contains the digits 0,9 and 5 in tha

son4ous [18]

306 and 095 the 0 means no hundreds mean your number is 30695 3thosand and 6hundered and 95

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3 years ago

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Find the slope (-3,10) (-3,7)

IgorC [24]

Answer:

Undefined because the x values are the same

Step-by-step explanation:

Slope: y2 - y1 / x2 - x1

Slope: 7 - 10 / -3 - - 3

Slope: -3 / -3 + 3

Slope: -3 / 0

Slope: undefined

8 0

3 years ago

You have 16 yellow beads, 20 red beads, and 24 orange beads to make identical bracelets. What is the greatest number of the brac

zzz [600]

Answer:

4 bracelets

Step-by-step explanation:

We have been given that you have 16 yellow beads 20 red beads and 24 orange beads to make identical bracelet. We are asked to find the greatest numbers of bracelets you can make using all the beads.

To solve our given problem, we need to find greatest common factor of 16, 20 and 24.

Factors of 16: 1, 2, 4, 8, 16.

Factors of 20: 1, 2, 4, 5, 10, 20.

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24.

We can see that greatest common factor of 16, 20 and 24 is 4, therefore, you can make 4 bracelets using all the beads.

6 0

3 years ago