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Lina20 [59]
2 years ago
10

What is the solution to 18 = 2(2x + 7)?

Mathematics
2 answers:
NARA [144]2 years ago
7 0
18=2(2x+7)
2*2x=4x
2*7=14
18=4x+14
18-14=4
4=4x
1=x
dusya [7]2 years ago
6 0

Answer:

x= 1 :))

Step-by-step explanation:

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Is (2,2) a solution to this system of equations? x + 2y = 6 3x + 4y = 14
babymother [125]

Answer:

No

Step-by-step explanation:

(2,2) isn't but  (6 1/2, -2) is because that is where they intercept

5 0
3 years ago
The sides of a square field are 12 meters. A sprinkler in the center of the field sprays a circular area with a diameter that co
loris [4]
Area of the square is 144m.
Area of the circle is 113.1m.
Subtract A of circle from A of Square which equals 30.9meters. That is your answer.

If you want I can teach you step by step just comment if you want me to...
8 0
3 years ago
Imaginen que un maratonista corre toda una carrera a una velocidad constante. Después de dos horas lleva recorridos 22 km
saw5 [17]

For this case we have:

If after 2 hours the marathon runner has traveled 22 kilometers we have:

2h -----------> 22km

Applying a rule of three, we can know the time it takes to run 42km. So, we have:

2h -----------> 22km

x -------------> 42km

Where "x" is the time it takes to travel 42km. Resolving we have:

x = \frac {(42 * 2)} {22}

x = \frac {84} {22}

x = \frac {42} {11}

x = 3.82 hours

Thus, after 3.82 hours the marathon runner will travel 42km.

Answer:

3.82 hours


6 0
3 years ago
Question:
nikdorinn [45]
25 were on the roller coaster.
Multiplication and subtraction
7 0
3 years ago
Read 2 more answers
87-(36.5-11.5)*(-3)+9 simplify using order of operations
OLga [1]
Remember PEMDAS 
Do parentheses, results in 25. So whats left is 87-25*(-3)+9
Then you multiply -25 by -3, answer is 75.        87+75+9
Add all of them up.                                                171
The answer is 171!
5 0
3 years ago
Read 2 more answers
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