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Mathematics
OpenStudy (anonymous):

1. if tim had lunch at $50.50 and he gave 20% tip. how much did he spend? 2. Find the greatest common factor of 24, 40 and 60 ? 3. in 2008 , the world population is about 6,760,000,000. Write the 2008 wolrd population in scientific notation 4. give the rules of divisibility ?

OpenStudy (anonymous):

give some rules not all

OpenStudy (anonymous):

any got answers or help mee get them yet ??

OpenStudy (anonymous):

20% of 50.50 was given as tip

OpenStudy (anonymous):

What do you mean by "give some rules"?

OpenStudy (anonymous):

give some rules like give only 10

OpenStudy (anonymous):

not all of the rules of divisiblity

OpenStudy (anonymous):

alisha yes it was given as a tip

OpenStudy (anonymous):

1. 50.50(0.2)=tip 2. The greatest factor of 24, 40, and 60.. List all the factors for each number (ex. 24=1, 24, 12, 2, ... 40=1, 40, 2, 10.... 60=1, 60, 2, 30...) The biggest number you see that appears in all of the three numbers is your GCF. 3. You can probably Google that up.

OpenStudy (anonymous):

To see how much he gave for tips you put the amount the lunch cost multiplied by the percentage of tips he gave. Then you add that amount that you found to how much the lunch cost without the tips to find the total he paid. $50.50 x 0.2 =$xxx $xxx + $50.50 = ????

OpenStudy (anonymous):

kk

OpenStudy (anonymous):

* the spacing was weird. #1) 50.50(0.2)=tip #2) The greatest factor of 24, 40, and 60.. List all the factors for each number (ex. 24=1, 24, 12, 2, ... 40=1, 40, 2, 10.... 60=1, 60, 2, 30...) The biggest number you see that appears in all of the three numbers is your GCF. #3) You can probably Google that up.

OpenStudy (anonymous):

ok thaxs

OpenStudy (anonymous):

denebell

OpenStudy (anonymous):

Love your name

OpenStudy (anonymous):

I have one more problem

OpenStudy (anonymous):

can u help me with it

OpenStudy (anonymous):

In a given school there are 240 boys and 260 girls what is the ratio of the number of girls to the number of boys what is the ratio of the number of boys to the total number of pupils in the school

OpenStudy (anonymous):

2. Create a factor trees for the following numbers 590, 333, 200, and 1000 next find the GCF and the LCM of 00 and 1000 Explain how u can use factor trees to find these.

OpenStudy (anonymous):

# of girls: #of boys = 260:240... You can reduce that.. # of boys: # of students = 240:(240+260)... Simplify

OpenStudy (anonymous):

so for ratio of number gilrs to number boys are ...

OpenStudy (anonymous):

You can Google how to do factor tree.

OpenStudy (anonymous):

ratio of number girls to number boys = 260:240 or 260/240. You can use the : or /... then simplify.

OpenStudy (anonymous):

so the answer is 260/240

OpenStudy (anonymous):

Yes, but you have to reduce the fraction.

OpenStudy (anonymous):

and that becomes

OpenStudy (anonymous):

1 1/12

OpenStudy (anonymous):

so the next ? what the answer

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