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navik [9.2K]
4 years ago
11

Can somebody plz answer all of these correct!!! (WILL MARK BRAINLIEST) :D thx!

Mathematics
2 answers:
Veronika [31]4 years ago
8 0

Answer:

2

1

6

21

7.45

4

4

9.6

Step-by-step explanation:

Ira Lisetskai [31]4 years ago
5 0

7. 2

8. 7

9. 6

10. 21

11. 7.45

12. 4

13. 0.8264 (not sure about this one)

14. (not sure about this one either)

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Clara has $67 in her piggy bank. She spent x dollars on a dog bowl and now has $57.4 remains.
kolezko [41]

Answer:

B) 57.4+x=67

Step-by-step explanation:

We take the amount in the piggy bank.  Then we take the amount spent and add it to the amount she has left.  These two amounts should be equal

piggy bank = spent + left

67 = x + 57.40


6 0
4 years ago
−3t≥39 What is the answer
Daniel [21]

Answer:

-3t ≥39

-3t/-3 ≥39/-3

t≤-13

3 0
3 years ago
Please help me solve this
andre [41]

Answer:

Step-by-step explanation:

This number is much larger than 1. You need to start at the decimal and move left (that's how scientific notation works for numbers larger than 1.)

So the answer is 1.0054 * 10 ^7

The person doing this started at the 1 and moved right until he/she hit the decimal. Wrong direction.

7 0
3 years ago
Solve this equation and explain the steps<br> 9-2x= 7x
Hunter-Best [27]

Answer:

x = 1

Step-by-step explanation:

Step 1: Write equation

9 - 2x = 7x

Step 2: Solve for <em>x</em>

<u>Add 2x on both sides:</u> 9 = 9x

<u>Divide both sides by 9:</u> x = 1

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

9 - 2(1) = 7(1)

9 - 2 = 7

7 = 7

3 0
4 years ago
Por favor responder a esta pregunta
ahrayia [7]
Por determinante:
5...1...1
1...0...1 = 0 --> se o determinante for igual a 0, os pontos estarão alinhados.
3...3...1

calculando: (5 x 0 x 1 + 1 x 1 x 3 + 1 x 3 x 1) - (1 x 0 x 3 + 1 x 1 x 1 + 3 x 1 x 5) = 
0 + 3 + 3 - 0 - 1 - 15 = 
6 - 1 - 15 = 
5 - 15 = - 10 --> como não deu zero, os pontos não estão alinhados.
4 0
3 years ago
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