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Nadusha1986 [10]
3 years ago
9

In a class of 32 students, 4 have birthdays in October.What percent have October birthdays

Mathematics
1 answer:
natta225 [31]3 years ago
3 0

Answer:

12.5% of students

Step-by-step explanation:

To find this you would divide 4 by 32 (4/32) and get 0.125. To find a percent, you multiply by 100 and get 12.5%

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Ralph buys a desk that regularly sells for $250 and a desk chair that regularly sells for $145. both items are on sale at 15% of
Lunna [17]
C) (0.85 + x/100)(250+145) does not give the correct answer.

Explanation
A) works; adding the two costs together is 250+145=395.  We multiply this by 0.85 because 100%-15%=85%=0.85.  We also have x% tax, which is represented by x/100, added to 100% of the value, or 1.00.  Altogether this gives us 
395(0.85)(1+x/100) = 395(0.85 + (0.85x/100)) = 395(0.85) + 395(0.85x/100)
= 395(0.85) + 395(0.0085x)
B) works; we have 250+145 for the original price; we have 85% = 0.85 of the value; we also have 100% + x%, which is (100+x)/100.
C) does not work; (0.85+x/100)(395) does not take into consideration that you are finding the tax after taking the 85%.  This will simplify out to
0.85*395 + (x/100)(395) = 335.75 + 395x/100 = 335.75 + 3.95x, which is too much.
D) works; simplifying the expression from A, we have 395(0.85) + 395(0.0085x) = 335.75 + 3.3575x.
6 0
3 years ago
HELP I THINK ITS EITHER C OR D BUT IDK
IrinaK [193]

Answer:

It's just c

Step-by-step explanation:

That's what corresponding angles look like? I don't really know how to explain this. Sorry!

7 0
3 years ago
Read 2 more answers
If cost of 15 eggs is ? 75, then find out the cost of 4 dozens eggs.
dedylja [7]

Answer:

Each egg is $5 so 4 dozen(48) is $240

Step-by-step explanation:

the way to do this is 75/15= 5

and then you multiply 12 x 4 to get 48 eggs

and then multiply 48 x 5 to get $240

3 0
3 years ago
Read 2 more answers
Simplify the expression 3+(8+a)
-Dominant- [34]

Answer:

The simplified version of this expression is 11 + a.

Hope this helps!

Brainliest?

4 0
3 years ago
Read 2 more answers
What is 0.11/5.973 please show work
german

Answer:

  0.0184162062615101289...

Step-by-step explanation:

In the attachment, the quotient is calculated "by hand" to 7 decimal places (6 significant figures). The quotient is a repeating decimal with a 180-digit repeat.

This is a good problem for your calculator.

5 0
3 years ago
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