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quester [9]
2 years ago
11

Two numbers total 31 and have a difference of 9. Find the two numbers.

Mathematics
1 answer:
Eva8 [605]2 years ago
5 0

Answer:

20, 11

Step-by-step explanation:

x=first Number

x-9=second number

above two added together=31 or

x+(x-9)=31

2x=40

x=20 first number

x-9=second number

20-9=11 second number

20 (first number) + 11 (second number)=31

31=31

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What is co efficient of -9xy2z
Radda [10]
The coefficient of ALL variables is the number in front of the variable, which here its -9
8 0
3 years ago
What is the solution of 1/2 x= 5/6
Studentka2010 [4]

Answer:

5/3

Step-by-step explanation:

1/2 x = 5/6

Multiply by 2 on each side

(1/2 * 2)x = (5/6)2

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8 0
3 years ago
Read 2 more answers
38÷244 ,24÷943,653÷52
jeka94
38/244= about 0.16
24/943= about 0.03
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5 0
3 years ago
PLZ HELP!!!
Fed [463]
4 is missing I assume. But I could be wrong
4 0
3 years ago
Please help me on this problem I don't know how to do it.
quester [9]
1: establish the angles, basically label one x (the small one) and the other y (the bigger one)

2. supplementary angles add up to 180, so therefore you have the equation x + y = 180.

3. so y (the bigger one) is 8 less than 3 times the smaller one (x) therefore you come up with the equation y = 3x - 8

4. plug in the equation of the bigger one into the other equation

x + 3x - 8 = 180
(combine like terms)
4x - 8 = 180

5. solve the equation by adding 8 to 180, then by dividing by 4.
x should equal 47

6. plug in 47 into the x + y = 180 equation, subtract 47 from 180 and you end up with 133

i hope i explained it alright
7 0
3 years ago
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