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DerKrebs [107]
3 years ago
14

In a group of 20 children, 50% have blue eyes and 40% have brown eyes. How many children have brown eyes? SHOW YOUR WORK please!

Mathematics
2 answers:
DENIUS [597]3 years ago
6 0

Answer: blue eyes - 10 brown - 8

Step-by-step explanation:

50% = half

half of 20 = 10 = blue eyes

20 * 40%

20 * .4 = 8, thus 8 with brown eyes

Hope this helps

Paladinen [302]3 years ago
5 0

Answer:

8 have brown eyes

Step-by-step explanation:

50% of 20 is 10 children

40% of 10 is 4 so 4x2 is 8 children

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7•7+3(4•4+3+2) what is the answer to this?????
sdas [7]

Answer:

73

Step-by-step explanation:

7x7 is 49+3=52(4x4=16+5=21 then you would do 52+21=73 and 3+2 is 5

7x7+3=52

4x4=16

3+2=5

16+5=21

52+21=73

73 is answer

5 0
3 years ago
Read 2 more answers
Determine whether each number is prime, composite, or neither.
givi [52]
Alright lets start by defining both prime and composite.

A natural number that has exactly two factors, one and itself, is called a prime number.
And natural number, other than one, that is not prime, is composite.

So lets start on #1: 8. We should know right off the bat that this is an even number and therefore can be divided by 2 (8/2=4). Since 8 is not one, we know that it is a composite number.

On #2 the number is 13. Now try some random numbers (2,3...) and you will find that nothing will give you a whole number (other than one). This means this number is prime.

#3 is the number 24 which is also even and can be divided by two, therefore is it composite.

33 is the number on #4. Now this one you should look at and realize that it can be divided by 11. Any two numbers that are the same (11, 22, 33, 44, 55...) can be divided by 11. This number is composite.

#5, the last one, is number 89. 89 is not a composite number, because it's only divisors are one and itself. This would make is a prime number.

Sorry this was kinda long, but I hope it helps! If you have any questions, feel free to ask!
4 0
3 years ago
What is 0.9 divide by 2.647
DanielleElmas [232]

Answer:

0.340007556

Step-by-step explanation:

its correct

3 0
3 years ago
Read 2 more answers
How to work scientific notation
Feliz [49]
It like instead of saying 0.0000056 you can write it in a shorter form like          5.6 * 10-6.Its like moving the decimal point between 5 and 6 and multiplying it by the power 10*6. its like how much time you move the decimal point, it will be how much time you say 10 to the power of how much you move it.

5 0
3 years ago
Elizabeth bought $5.00 worth of candy at the convenience store. She bought ten more 6-cent salt-water taffies than 10-cent taffi
svp [43]

Answer: 20 6-cents, 30 8-cents, 10 10-cents and 2 20- cents

Step-by-step explanation:

6 cent = x+10

10 cent= x

8 cent= 3x

20 cent=2

6x+60+10x+24x+40

400 divided by 40=X

x=10.

10+10=20/ 6 cents

3x10=30/ 8 cents

x=10/ 10 cents

20 cents= 2.

6 0
4 years ago
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