Evaluate 3/5 - 3/10 and explanation thanks
Answers
Answer 1
Answer:
It would be 3/10 because you have to create a common denominator. That would be 10. 3x2=6 and 5x2=10, so 3/5 would become 6/10, which is equivalent. If you kept the denominators the same and subtracted the numerators, you would get 3/10.
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Help...1. Simplify 2+17x-5x+9......
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Answers
Answer:
The answer .03 is 10 times greater than .003
Step-by-step explanation:
.003 x 10= .03
x+y=2
-2x+y=2
Answers
so you want to make one of the equations equal to one of the placeholders exg y=x+3
so we have
x+y=2 and
-2x+y=2
I chose to make -2x+y=2 equal to y so
-2x+y=2
add 2x to both sides
y=2+2x
subsitute 2+2x for y in x+y=2
x+2+2x=2
add like terms
3x+2=2
subtract 2 from both sides
3x=0
x=0
subsitute x=0 in x+y=2
0+y=2
y=2
x=0
y=2
so we have
x+y=2 and
-2x+y=2
I chose to make -2x+y=2 equal to y so
-2x+y=2
add 2x to both sides
y=2+2x
subsitute 2+2x for y in x+y=2
x+2+2x=2
add like terms
3x+2=2
subtract 2 from both sides
3x=0
x=0
subsitute x=0 in x+y=2
0+y=2
y=2
x=0
y=2
separate one variable in either equation, so for example:
x=-y+2
-2x+y=2
(if you dont know how to do that, tell me)
now that you have the variable separated, you can substitute the top equation in for the x in the second equation like this
-2(-y+2)+y=2
and now use the distributive property to get:
2y-4+y=2
and just combine like numbers.....
3y-4=2
and if you dont know how to solve it from here, comment to tell me but the rest of the problem would go like this:
3y-4=2
+4 +4
3y=6
/3 /3
y=2
and then you take this y and plug it back into one of the original two equations waaayy up at the top like this:
x+2=2
and solve...
x+2=2
-2 -2
x=0
so your final answer is (0,2)! Hope this helps!
x=-y+2
-2x+y=2
(if you dont know how to do that, tell me)
now that you have the variable separated, you can substitute the top equation in for the x in the second equation like this
-2(-y+2)+y=2
and now use the distributive property to get:
2y-4+y=2
and just combine like numbers.....
3y-4=2
and if you dont know how to solve it from here, comment to tell me but the rest of the problem would go like this:
3y-4=2
+4 +4
3y=6
/3 /3
y=2
and then you take this y and plug it back into one of the original two equations waaayy up at the top like this:
x+2=2
and solve...
x+2=2
-2 -2
x=0
so your final answer is (0,2)! Hope this helps!
Answers
So, first you have to put the amount of decrease/increase over the original amount. (like a fraction!) then you are trying to find the percent so you would do x over 100. so it would look like; 438,000 x
----------- = -----
561,000 100
Then you would cross multiply (438,000 times 100 and 561,000 times x [which would be x]) and it would look like; 43,800,000 = 561,000x
(a shortcut for 0's is that if theres the same amount of them on each side just cross them out! It gives you the same amount every time!)
43,800=561x and finally you would divide 43,800 by 561 and your answer is 78.07%
Hope I helped! :)
----------- = -----
561,000 100
Then you would cross multiply (438,000 times 100 and 561,000 times x [which would be x]) and it would look like; 43,800,000 = 561,000x
(a shortcut for 0's is that if theres the same amount of them on each side just cross them out! It gives you the same amount every time!)
43,800=561x and finally you would divide 43,800 by 561 and your answer is 78.07%
Hope I helped! :)
(561000-438000)/438000 x 100%
=123000/438000 x 100%
=28,08 %
=123000/438000 x 100%
=28,08 %
Answers
Answer:
18 17/24
Step-by-step explanation:
for further reasoning how i got the awnser ask in the comments
Answer:18.7
Step-by-step explanation:
Answers
If their are 3 of them and they all have the same amount, and the finishing total is $4.44, Then they would each have $1.48. If you need the work take $4.44 and divide it by 3.
$1.48 because $4.44 divided by 3 equals $1.48
Answers
1 quart equals about 5 cups. So, about 10 cups!
Hope this helped!
Hope this helped!