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d1i1m1o1n [39]
2 years ago
5

Solve 7r+ 2 = 5(r – 4) ​

Mathematics
2 answers:
AveGali [126]2 years ago
6 0

Multiply the bracket by 5

I used PEMDAS

P= parenthesis

E= exponents

M=multiplication

D= division

A= addition

S= subtraction

7r+2= 5(r-4)

7r+2= 5r-20

Move 5r to the left hand side . Positive 5r changes to negative 5r

7r-5r+2= 5r-5r-20

2r+2=- 20

2r+2-2= -20-2

Move positive 2 to the right hand side. Changes to negative -2

2r+2-2= -20-2

2r= -22

Divide by 2 for 2r and -22

2r/2= -22/2

r= -11

Answer is r= -11

babunello [35]2 years ago
3 0

Answer:

r = (-11)

Step-by-step explanation:

7r + 2 = 5(r – 4) ​

7r + 2 = 5r – 4 * 5

7r + 2 = 5r – 20

7r - 5r = -20 - 2

     2r = -22

       r = -22/2 = (-11)

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Answer:

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Step-by-step explanation:

Since the% increases every year

So for the first year=

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(a) Which of the following has only one subset? (1)
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Answer:

Option (i)

Step-by-step explanation:

{2} has only 1 subset i.e. {2} and no other subset. While { } or ∅ has no subset.

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2 years ago
(17 PTS)<br> GEOMETRY QUESTIONS, PLEASE HELP!
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14. 
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15.
Angles 1 and 8 are congruent, because they are alternate exterior angles

16.
m = y2 - y1 / x2 - x1
m = 7 - 2 / 4 - 5
m = 5 / -1
m = -5

17.
m = 3 - 3 / 7 - (-5)
m = 0 / 12
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18.
m = 1 - (-2) / 5 - (-4)
m = 3 / 9
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19.
A = (0, 3) - B = (3,0)
m = 0 - 3 / 3 - 0
m = -3 / 3
<em>m = -1</em>
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20.
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21.
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22.
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Horizontal line
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</em>23.
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Angle 2 is congruent to angle 3 because of substitution.
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7 0
3 years ago
Read 2 more answers
Is 11/50 and 0.22 equivalent?
ozzi
11/50=1.1/5=0.22

They are indeed equivalent.
5 0
3 years ago
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lawyer [7]

Answer:

396cm I think.

Step-by-step explanation:

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4 0
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