Answer:
2x=-2
3x=-3
Step-by-step explanation:
im not sure what you are asking but ok
I think it is 8 but im not sure srry if rong
Answer:
# siblings ratio fraction decimal percent
- 0 3 : 20 3/20 .15 15%
- 1 1 : 5 1/5 .20 20%
- 2 3 : 8 3/8 .375 37.5%
- 3 6 : 25 6/25 0.24 24%
- 4+ 7 : 200 7/200 0.035 3.5%
Step-by-step explanation:
I'll use row 3 as an example to show you how to do all these.
# siblings ratio fraction decimal percent
- 3 <u> </u> <u> </u> 0.24 <u> </u>
<u>To find fraction</u>
put number over 100 and just simplify as much as you can.
24/100 = 12/50 = 6/25
<u>To find ratio</u>
ratios are the same as fractions, but instead of the fraction bar or slash, you have a colon.
this one would look like 6 : 25 as a ratio.
<u>To find decimal</u>
DIVIDE the fraction or ratio (using a calculator if allowed, or by hand otherwise)
6/25 = 0.24
<u>To find percent</u>
take the decimal once you find it, and move the decimal point to the right by 2 digits. That's the percent.
0.24 ==> 24%
9514 1404 393
Answer:
36
Step-by-step explanation:
Let n represent the number of stickers Ms Galinia has. Then the number of students is ...
(n -12)/3 . . . for first distribution of stickers*
(n +4)/5 . . . for the second distribution of stickers
Since the number of students has not changed, we can equate these values:
(n -12)/3 = (n +4)/5
5(n -12) = 3(n +4)
5n -60 = 3n +12
2n = 72
n = 36
Ms Galinia has 36 stickers.
_____
* If Ms Galinia has 12 left over after giving 3 to each student, then subtracting 12 from her number of stickers will give a number that is 3 times the number of students. Dividing (n-12) by 3 will give the number of students. Similar reasoning can be used for the 5-per student distribution.
One could write equations using a variable for the number of students, or variables for both students and stickers. Since we only need to know the number of stickers, it seemed reasonable to use one variable for that.
Answer:
B, B, C, and im not sure about the last one
Step-by-step explanation: