Melanie and Brad each drink 10 cups of water every day. How many gallons of water do the three of them drink altogether each week?
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Answer 1
Answer:
I want to tell a week is 7 days and you multiply 10 and 7. It's 70. You swap the numbers and it becomes 07. You just put a decimal point between the numbers so it's 0.7.
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To figure out this problem, you can look at formulas, or you can try out a few problems. There are many people that prefer one or the other in my class, so I will show you both. :)
Before I show you either of these, I'm going to define rational numbers and explain some things so that you can understand why we do what we do. Make sure to remember things like this because when you get to algebra (I'm in algebra), you need to know all of this stuff! :)
A rational number is any number that can be written in a over b form (a/b) or as a fraction. A rational number can be positive or negative because you can put positive and negative numbers into a fraction. Decimals can also be rational numbers because things such as .3 can be written as 3/10. So, depending on what number you have, there is always an opposite.
To find an opposite number, you have to basically find the absolute value (how far the number is from zero), double that number, and add it from the original number. Or, if you want to make it worlds easier, you can just make the number the opposite inverse. So, if it is -4, the opposite is 4. If the number is 7, then the opposite is -7. What is the sum between both of those examples? Zero.
Here is the formula: a+(-a)=0, (-a)+a=0
Here is some examples: (-5)+5=0, 8+(-8)=0
Thanks so much for the opportunity to answer your question. I hope this helped! :)
Before I show you either of these, I'm going to define rational numbers and explain some things so that you can understand why we do what we do. Make sure to remember things like this because when you get to algebra (I'm in algebra), you need to know all of this stuff! :)
A rational number is any number that can be written in a over b form (a/b) or as a fraction. A rational number can be positive or negative because you can put positive and negative numbers into a fraction. Decimals can also be rational numbers because things such as .3 can be written as 3/10. So, depending on what number you have, there is always an opposite.
To find an opposite number, you have to basically find the absolute value (how far the number is from zero), double that number, and add it from the original number. Or, if you want to make it worlds easier, you can just make the number the opposite inverse. So, if it is -4, the opposite is 4. If the number is 7, then the opposite is -7. What is the sum between both of those examples? Zero.
Here is the formula: a+(-a)=0, (-a)+a=0
Here is some examples: (-5)+5=0, 8+(-8)=0
Thanks so much for the opportunity to answer your question. I hope this helped! :)
It's 0.
%3Da-a%3D0)
Answers
Well to find the area of a rectangle you have to go length times width.
If the area is 900 and the length is 100. You already have a basic equation.
100 times X = 900.
X will equal the width.
To get the answer, you have to reverse this equation so you divide the area by the length.
900 divided by 100. That comes to 9.
The width of the rectangle is 9. Hope this helped!:)
If the area is 900 and the length is 100. You already have a basic equation.
100 times X = 900.
X will equal the width.
To get the answer, you have to reverse this equation so you divide the area by the length.
900 divided by 100. That comes to 9.
The width of the rectangle is 9. Hope this helped!:)
2x10^-5
3.7x10^6
3x10^8
Answers
standard form for scientific notatnio is
(number more than or equal to 1 and less than 10) times 10^x
maybe you want to multiply it out so
10^3=10 times 10 times 10=1000
basically, if positive, move the decimal place to the right the exponent number of spaces
if negative do move to the left
first one
4 times 10^9
4 with 9 zeroes after it
4,000,000,000
this is in standard form
2nd one
2 times 10^-5
move decimal place 5 places to the left
0.00002
3rd
3.7 times 10^6
6 places to the right
3,700,000
4th
3 times 10^8
8 zeroes
300,000,000
(number more than or equal to 1 and less than 10) times 10^x
maybe you want to multiply it out so
10^3=10 times 10 times 10=1000
basically, if positive, move the decimal place to the right the exponent number of spaces
if negative do move to the left
first one
4 times 10^9
4 with 9 zeroes after it
4,000,000,000
this is in standard form
2nd one
2 times 10^-5
move decimal place 5 places to the left
0.00002
3rd
3.7 times 10^6
6 places to the right
3,700,000
4th
3 times 10^8
8 zeroes
300,000,000
4000000000
0.00002
3700000
300000000
0.00002
3700000
300000000
Answers
75% as a fraction would be 
.
If you convert 75% as a decimal,
, the last number, 5, is in the hundredth position. Which means the denominator will be 100.
The numerator will obviously be 75.
Now we can simplify.
Let's divide both numbers by 25.
Our final answer is
.
If you convert 75% as a decimal,
The numerator will obviously be 75.
Now we can simplify.
Let's divide both numbers by 25.
Our final answer is
75% = 75/100÷ 5= 15/20 ÷5= ¾. does this help? hope it does
x = 5
x = 1
x= -1
x = -5
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Answer:
-1
Step-by-step explanation:
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16x^2-40x+25 Yes I know my phone is messed up but at least you got the answer
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