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Travka [436]
2 years ago
5

2a +7= 15 answer please

Mathematics
2 answers:
Paul [167]2 years ago
7 0

Answer:

a = 4

Step-by-step explanation:

2a + 7 = 15

     - 7  - 7

2a = 8

/2   /2

a = 4

Hope this helps!

Angelina_Jolie [31]2 years ago
5 0

Answer:

a=4

Step-by-step explanation:

We need to find a way to get (a) alone on one side.
first, we will subtract 7 from 15 to get 8.
Next, We will divide 8 by 2. to get 4

your work should look like this.
2a+7=15
2a=15-7
2a=8
a=8/2
a=4

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PLEASE HELP due soon!I forgot how to do it omg
Flura [38]

Answer:

(3, -3) is correct

Step-by-step explanation:

-4 × 3 = -12. -12 + 9 = -3

8 0
3 years ago
One page of a petition can hold p signatures. You were able to get 4p+5 people to sign the petition. Your friend was able to get
leva [86]

Answer:

6p - 2

Step-by-step explanation:

The expression that needs to be made in this question refers to the total number of people that signed the petition. To calculate this we need to add the total number of signatures that both you and your friend were able to acquire. Once we do this we simply combine like terms in order to simplify the expression as much as possible.

4p + 5 + 2p - 3

4p + 2p + 5 - 3

6p - 2

Therefore, the total and simplified expression for the total number of signatures would be 6p - 2

8 0
2 years ago
1)4-2(x + 19) = 50<br> 2)7(x-3)-14=70
zalisa [80]
2x+38=50
2x+38-38=50 -38
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8 0
2 years ago
Read 2 more answers
If two cards are drawn without replacement from a 52 card deck, find the probability that the second card drawn is red, given th
snow_lady [41]

Answer:

The probability that the second card drawn is red, given that the first card was a heart is 0.1225

Step-by-step explanation:

Total cards in a deck = 52

Total red cards = 26

Heart cards = 13

Probability of getting red card =\frac{13}{52}

Total remaining card = 51

Remaining red cards = 25

Probability of getting red card in second draw without replacement = \frac{25}{51}

So, the probability that the second card drawn is red, given that the first card was a heart = \frac{13}{52} \times \frac{25}{51} =0.1225

Hence the probability that the second card drawn is red, given that the first card was a heart is 0.1225

5 0
2 years ago
Help please I really need it
KatRina [158]

First write the equation 8 + 12 > x because according to the triangle property, the sum of any 2 sides have to be greater than the third side. This means that the difference of any two sides should be smaller than the third side.


So, the answer would be 4 < x < 20.



8 0
2 years ago
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