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priscillacastillo2
02/10/2019
Mathematics
Middle School
answered
The sum of two numbers is 14 one number is two less than three times the other. find the numbers
1
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Answer
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calculista
Genius
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Answer:
The numbers are and
Step-by-step explanation:
Let
x-----> one number
y----> the other number
we know that
------> equation A
-----> equation B
Substitute equation B in equation A and solve for y
Find the value of x
A is your answer im pretty sure took the test
Answer:
1
Step-by-step explanation:
I am assuming you mean what is 100 % in decimals. To convert a percent to a decimal, you divide by 100 (percent means by 100). If you divide 100 by 100, you get 1.
Mostly collect like terms
use associative property which is
(a+b)+c=a+(b+c)
and remember that:
you just use a general rule
x+x=2x
x^2+x^2=2x^2
3xy4xy=7xy
3x+4x^2=3x+4x^2
you can only add like terms( like terms are terms that are same name like x or y are differnt, and like terms have same power exg x^2 and x^3 and x^1/2 and such
so first one
3b+11c-4c-c
since they are all c except for the first one term, just assign a number for each so it simplifies to c times(11-1)+b(3-4)=c(10-1b=10c-b or
you just use a general rule
x+x=2x
x^2+x^2=2x^2
3xy4xy=7xy
3x+4x^2=3x+4x^2
second one9a-1+8c-8a+c
group like terms
(9a-8a)+(8c+c)-1=(a)+(9c)-1=a+9c-1
12c+5a+7-13c+4a
group like terms(12c-13c)+(5a+4a)+7
add like terms
-c+9a+7
the solution is 9a-c+7
-15-6c+3b-6c+9-2b
group like terms
(-15+9)+(-6c-6c)+(3b-2b)
-6+(-12c)+b=b-6-12c
the answers are:
10c-b
a+9c-1
9a-c+7
b-12c-6
Answer:
53/100
Step-by-step explanation:
40/75=53/100
