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Digiron [165]
2 years ago
13

A student provided the following solution for an equation. What mistake did the student make?

Mathematics
1 answer:
kvv77 [185]2 years ago
3 0

Answer:

1st choice - 1st line- Distributive property applied incorrectly

Step-by-step explanation:

3(a-2) should be 3a-6

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The answer is the 48+28=(7)(7)+(14)(2)
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-5.8c+4.2-3.1+1.4c combine like terms to create an equivalent expression
VMariaS [17]
-5.8c + 4.2 - 3.1 + 1.4c = -4.4c +1.1

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6/30=3/15 true or false
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Answer: True

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12 out of 15 students play in the school band. In a class of 45 students, how many do NOT play in the band? |​
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3 0
3 years ago
Solve the system of equations. y=-3x+4 -4x+y=-10​
Angelina_Jolie [31]

Answer:

Step-by-step explanation:

In this particular case we have the following system of equations:

y

=

−

3

x

+

4

[

E

q

.

1

]

x

+

4

y

=

−

6

[

E

q

.

2

]

Substituting

[

E

q

.

1

]

in

[

E

q

.

2

]

:

x

+

4

(

−

3

x

+

4

)

=

−

6

Applying the distributive property on the left side:

x

−

12

x

+

16

=

−

6

Simplifying

:

−

11

x

=

−

22

Solving for

y

:

x

=

−

22

−

11

=

2

Substituting

x

=

2

in

[

E

q

.

1

]

:

y

=

−

3

(

2

)

+

4

=

−

2

Therefore

, the solutions are

x

=

2

and

y

=

−

2

7 0
3 years ago
Read 2 more answers
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