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Leokris [45]
3 years ago
11

Sixty-five percent of the 8th grade class is selling magazines for the class fundraiser. If 195 students are selling magazines,

how many students are in the whole 8th grade class?
Mathematics
1 answer:
kari74 [83]3 years ago
8 0

Answer:

300 students

Step-by-step explanation:

If 195 students is 65%, then we can divide 195 by 65 to find what 1% is.

195/65= 3

So 1% of the 8th grade class is 3 students. We want to know how many students are in the whole class, which would be 100% of the class.

If we multiply the 3 (which is 1%) by 100 (to get 100%) we can find the total number of students.

3x100=300

We can check this by finding 65% of 300, and seeing if that is 195.

300x.65=195

It does check out.

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How many different outfits can be made from 4 shirts, 4 pairs of pants, 2 pairs of shoes, and 3 hats
DiKsa [7]

Answer:

Step-by-step explanation:

21

5 0
3 years ago
Read 2 more answers
1. If p(x) = 3x + 4x² - 5x +8, find p(-2).​
levacccp [35]

Step-by-step explanation:

\small{\underline{\tt{\red{Given}}}}

\rightarrow p(x) = -2

\small{\underline{\tt{\green{solution}}}}

\rightarrowp(x) = 3x +  {4x }^{2}  - 5x + 8

\rightarrowp( - 2) = 3( - 2) + 4( { - 2}^{2} ) - 5( - 2) + 8

\rightarrowp( - 2) =  - 6 + 16  + 10 + 8

\rightarrowp( - 2) = 10 + 18

\rightarrowp( - 2) =  28

\small\boxed{p(-2) = 28 }

Hope it helps

4 0
3 years ago
Laura collects nickels and dimes she has a total of 47 nickels and dimes she calculated the value of the coins and found out she
Gre4nikov [31]

Answer:

Number of dimes = 34

Number of nickels = 13

Step-by-step explanation:

Total number of coins = 47

Coins are in the form of nickels and dimes.

Value of a nickel = 5 cents

Value of a dime = 10 cents

Total value of coins = $4.05 or 405 cents

To find:

Number of nickels and dimes?

Solution:

Let number of nickels = x

Money value of nickels = 5x

Let number of dimes = y

Money value of dimes = 10y

Total value of coins = 5x+10y

This value is given as equal as 405.

As per question statement, the equations can be written as:

5x+10y = 405 ..... (1)\\x+ y = 47 ...... (2)

Multiplying equation (2) with 5 and subtracting from equation (1):

10y - 5y = 405 - 235  \\\Rightarrow 5y = 170\\\Rightarrow y = 34

Number of dimes = 34

Number of nickels  = 47 - 34 = 13

6 0
3 years ago
The cost of a ticket increases by 10% to £18.15<br> Work out the original cost.
Licemer1 [7]

Answer:

£16.50

Step-by-step explanation:

x \times (1+\frac{10}{100} )=18.15

x \times \frac{110}{100} =18.15

\frac{110}{100} x=18.15

1.1x=18.15

\frac{1.1x}{1.1}=\frac{18.15}{1.1}

x=16.5

7 0
3 years ago
Read 2 more answers
................................find 8% of 2.36.
slega [8]
2,36 ------- 100%
x ---------    8%
----------------------

 x = 2,36*8/100 = 0,18 

hope helped 
8 0
3 years ago
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