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Marianna [84]
3 years ago
10

What is the value of a in the equation 3a + b = 54, when b = 9?

Mathematics
2 answers:
-Dominant- [34]3 years ago
8 0
The value of "a" would be 15

sergey [27]3 years ago
3 0
A = 15 3 x 15 + 9 = 54 keep up the good work!
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Factor 403 – 102O 2x (2x - 5)O 2. (x - 5)O 23 (223 – 10)O x (x2 – 10x)
suter [353]

We are asked to factor out the expression:

4 x^3 - 10 x

So we extract a factor of "2" from the numerical factors "4" and "10", and also a factor of "x" from each term,leading to:

2 x ( 2 x^2 - 5)

Therefore, please select the first answer option they give you in the list.

3 0
2 years ago
PLEASE HELP ME ASAP!
AleksandrR [38]

Ok so first we find the equation that equals one variable.


2y = -x + 9

3x - 6y = -15


We solve for y.


2y = -x + 9

y = -x/2 + 9/2


Then we plug in this y value into the other equation to keep only one variable so we can solve for it.


3x - 6y = -15

3(-x + 9/2) - 6y = -15

-3x + 27/2 - 6y = -15

-9y + 27/2 = -15

-9y = 3/2

-y = 3/18

y = -3/18


Then we plug in this numerical y-value into the first equation which we found out by solving an equation for y.


y = -x/2 + 9/2

-3/18 = -x/2 + 9/2

-84/18 = -x/2

-x = 9 1/3

x = -28/3


Your answer would be (-28/3, -3/18)


Hope this helps!

6 0
4 years ago
Read 2 more answers
What’s the answer to 5 1/2 x ? = 10
myrzilka [38]
The answer is 1.81 repeated so like 1.81818181
3 0
4 years ago
Solve for t: t ÷ 5 = 8
DIA [1.3K]

Answer:

Step-by-step explanation:

Equation is t÷5=8

first you multiply 5 on each to cancel it out

t÷5*5=8*5

solve to get

t=40

8 0
4 years ago
mr ogata drove 276 mies from his house to los angeles at an average speed of 62 miles per hour. how long did it take him to get
Ilia_Sergeevich [38]
About 5 hours. I did this by dividing and rounding 276 by 62. Hope this helps!
4 0
3 years ago
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