help with some math problems please (decimals)?

Question

1) Nicole gets paid $8.25 an hour. She worked 8 hours on Friday. How much did she earn that day?

a. $52.00
b. $59.75
c. $66.00
d. $70.50
_______________________
2) what is the value of this expression?

3(15+9) - 2 x 11 = ?

a. 30
b. 50
c. 572
d. 770

______________
3) Sydney bought 5 new notebooks for $1.35 each and 12 pens that cost 3 for 1.25. What is the total amount she spent, not including Tax, on notebooks and pens?

a. $8.00
b. $10.50
c. $11.35
d. $11.75

________
its cuz i dont really remember when they teached these problems and i dont remember them =[ please help its home work and its due tommorow.

thks for those answers

Answer 1

1. $8.25 / hour * 8 = $66

2. Order of operations:
3(24) - 22 = 72 -22 = 50

3)5 notebooks * $1.35 per notebook = $6.75
12 pens * $1.25 / 3 notebooks = $5
6.75 + 5 = $11.75

P.S. Get help from your teacher. We can answer questions for your homework, but the tests and final exam will count for a LOT more. Yahoo won't be there to help you then.

Answer 2

1. C $66.00
You multiply 8.25 by 8 hours

2. B 50
You add the number inside the ( 15+9) mulitply it by 3=72
2 times 11 = 22 so it's 72-22 = 50

3.D 11.75
1.35 times 5 notebooks = $ 6.75
12 divided by 3 = 4 times 1.25 = $5.00
6.75 + 5.00 = 11.75

Answer 3

1.) C : $8.25 x 8

2.) B : add 15 and 9 since these are enclosed in parenthesis then multiply by 3, thus 15+9 = 24 then multiply it with 3 which is 24 x 3 = 72, multiply 2 with 11 = 2 x 11 = 22 since we multiply and divide things first before we add and subtract, lastly 72 -22 = 50

3.) D : just do multiplications, a division, and then add everything up.

Answer 4

If you don't know how to do these then you should ask your teacher... but for now you can just use a calculator.

The first one is just 8.25*8 which is 66

the second one you have to use order of operation... do what's in the parentheses first, the multiplication, then addition.

3(24) - 2*11
72 - 22
= 50

The third one is 5*1.35 for the notebooks which is 6.75
plus 4*1.25 which is 5.

so 6.75+5 is 11.75

Answer 5

I'm not just gonna give you the answers and give you the easy way out, because you won't learn anything that way...
I'll show you the process as well....

1. with decimals... you can multiply them separately if doing it all at once is confusing...
(8x8)+(.25x8)
64+2
66

2.
3(15+9) - 2x11=?
3(24) - 22 = ?
72-22=?
?=50

3. (5x1.35) + (4x1.25)
it's 4x1.25 because you get 3 for 1.25 and she got a total of 12.... 12 divided by 3 is 4.
[(5x1)+(5x.35)] + [(4x1)+(4x.25)]=?
5+1.75+4+1=?
?=11.75

Answer 6

1) 8.25 x 8 = 66.00 c
2) 45+27-22= 50 b
3) 1.35 x 5 + 1.25 x 4= 6.75 + 5.00=11.75 d

Answer 7

nicely first of all 0.a hundred twenty five is the comparable as a hundred twenty five/1000 merely as 0.12 is the comparable as 12/one hundred and 0.5 is the comparable as 5/10 in spite of the shown fact that As a fragment (in its lowest words) they could be equivalent to a million)0.a hundred twenty five = a hundred twenty five/1000 = a million/8 2)0.12 = 12/one hundred = 3/25 3)0.5 = 5/10 = a million/2 that is by using fact we cancel the numerator and the denominator by using effortless dividing the two by using a uncomplicated ingredient.Therfore: a hundred twenty five/1000 cancelled making use of five = 25/2 hundred cancelled making use of five = 5/forty cancelled making use of five = a million/8 (very final answer) 12/one hundred cancelled making use of two = 6/50 cancelled making use of two = 3/25 (very final answer) 5/10 cancelled making use of two =a million/2 (very final answer)

Answer 8

the first question is $66,the 2nd question is 50..the 3rd question is $11.75...gud luck..

Answer 9

dude get a ti83+