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Alchen [17]
3 years ago
10

3.2-9x+7.1-3x= what is the answer

Mathematics
1 answer:
Alex3 years ago
6 0
3.2 -9x+ 7.1 -3x
= (-9x -3x)+ (3.2+ 7.1) (combine like terms)
= -12x+ 10.3

The final answer is -12x+ 10.3~
You might be interested in
How do i solve using the rational root theorem. 2x3-9x2-11x+8=0
Lapatulllka [165]
2(3)-9(2)-11x+8=0
(2)(3)-(9)(2)-11x+8=0
6+-18+-11x+8=0
(-11x)+(6+-18+8)=0 Combine Like Terms.
-11x+-4=0
-11x-4=0
Add 4 to both sides.
-11x-4+4=0+4
-11x=4
Divide both sides by -11.
-11x/-11=4/-11
x=-4/11

Hope this helps!

4 0
3 years ago
The ratio of boys to girls at a movie is 4:7. If there are 21. girls, how many boys are
IrinaVladis [17]

Answer:

12

Step-by-step explanation:

7*3=21 so 4*3=12

3 0
4 years ago
A grid shows the positions of a subway stop and your house. The subway stop is located at (7, -7) and your house is located at (
Marizza181 [45]
Distance = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}
so plug in the coordinates and you will get 14.14 units 
4 0
4 years ago
Read 2 more answers
21x =7?<br> A. x=3<br> B. None of these <br> C. x=147<br> D. x=28
Varvara68 [4.7K]

Answer: B

Step-by-step explanation:

To isolate x, you divide both sides by 21

21x=7

\frac{21x}{21}=\frac{7}{21}

x = 7/21

Simplify by dividing both the numerator and denominator by 7

x = 1/3

Since, 1/3 is not an option, B is the correct answer

6 0
2 years ago
Help, please! 10 points to solve.
sineoko [7]
The answer is B, 7.6-(-1.7)=9.3
6 0
3 years ago
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