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babymother [125]
3 years ago
10

Solve: 3a - 2.4 = 5.1 a = _____

Mathematics
1 answer:
Delicious77 [7]3 years ago
7 0

Answer:

a=2.5

Step-by-step explanation:

3a-2.4=5.1   Add the like terms ( plus 2.4 cancels out -2.4)

   +2.4  +2.4

3a=7.5  Now divide by 3

/3     /3

a=2.5

You might be interested in
which ordered pairs in the form (x, y) are solutions to the equation 3x−4y=21 ? Select each correct answer. (−1, −6) (−3, 3) (11
Valentin [98]

Answer:

see explanation

Step-by-step explanation:

To determine which ordered pairs are solutions to the equation

Substitute the x and y values into the left side of the equation and if equal to the right side then they are a solution.

(- 1, - 6)

3(- 1) - 4(- 6) = - 3 + 24 = 21 = right side ← thus a solution

(- 3, 3)

3(- 3) - 4(3) = - 9 - 12 = - 21 ≠ 21 ← not a solution

(11, 3)

3(11) - 4(3) = 33 - 12 = 21 = right side ← thus a solution

(7, 0)

3(7) - 4(0) = 21 - 0 = 21 = right side ← thus a solution

The ordered pairs (- 1, - 6), (11, 3), (7, 0) are solutions to the equation

3 0
3 years ago
Read 2 more answers
Need help , if you can answer it pls do . thank you
lara [203]

Answer:

9

Step-by-step explanation:

14-5=9

therefore TV=9

hope this helped

3 0
3 years ago
Answer this please ‍thank you uwuw
koban [17]

Answer:

27

divide 42 by 33 and multiply by 100 =127

8 0
2 years ago
What are two numbers that have a product of 12 and a sum of 5
pashok25 [27]

Answer:

there are no two numbers that have a product of 12 and a sum of 5 make sure that the question is correct

yo can find two numbers that have a product of 12 and a sum of 7 the answer is 3 and 4 .

Step-by-step explanation:

6 0
3 years ago
What is <br> 2n - 3 = 9 ( solve the equation)
BartSMP [9]

2n - 3 = 9 \\ 2n = 12 \\ n = 6
5 0
3 years ago
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