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yKpoI14uk [10]
3 years ago
10

Brianna solved a two-step equation, but she made a mistake along the way.

Mathematics
2 answers:
nlexa [21]3 years ago
8 0

On Line 3, Brianna should have divided by 0.1 instead of subtracting 0.1. is correct

Makovka662 [10]3 years ago
3 0

The appropriate choice is ...

... On Line 3, Brianna should have divided by 0.1 instead of subtracting 0.1.

_____

Had Brianna simplified her effort properly on line 4, she would have

... -0.1 +0.1x = -1.4

putting her essentially back where she started—with a 2-step equation.

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25 pts What is the rule for a reflection across the origin followed by a translation 9 units to the left and 7 units down?
BartSMP [9]

Answer:

B

Step-by-step explanation:

1. A reflection across the origin has a rule

(x,y)\rightarrow (-x,-y).

2. A translation 9 units to the left and 7 units down has a rule

(x,y)\rightarrow (x-9,y-7).

Then the rule for a reflection across the origin followed by a translation 9 units to the left and 7 units down is

(x,y)\rightarrow (-x-9,-y-7).

This means that the point with coordinates (x,y) has the image with coordinates (x',y')=(-x-9,-y-7).

4 0
3 years ago
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there are 28 students in a classroom. the ratio girls to boys 4 to 3. write and solve a proportion to find how many boys are the
Sedaia [141]
Total = 28

Girls. Boys.
4. 3

28/4= 7
7 x 3 = 21

ANSWER = 21
3 0
3 years ago
I need help please!!!
tangare [24]

Answer:

it's yes

Step-by-step explanation:

3 0
3 years ago
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Vikki [24]
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5 0
3 years ago
Please help me on this will give you brainliest
Murljashka [212]

Answer:

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