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Pani-rosa [81]
4 years ago
15

Solve for the variable.* -a + 3a =10 A. {-9} B. {5} C. {-11} D. {2}

Mathematics
2 answers:
inna [77]4 years ago
5 0

Answer:

5

Step-by-step explanation:

-a+3a= 10

2a=10

a=10/2

a=5

murzikaleks [220]4 years ago
5 0
I got b so it’s 5 good luck
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Points-(0,6)
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3 years ago
Simplify:<br> -4x^2(3x-7)
statuscvo [17]
The answer is:  " -12x³ + 28x² "  .
___________________________________________
Explanation:
___________________________________________
Note the "distributive property of multiplication" :
___________________________________________a(b+c) =  ab +  ac ;a(b−c) =  ab − ac ;___________________________________________
So;  given:  " - 4x² (3x - 7) " ;

 →   - 4x² (3x <span>−</span> 7) ;
             = [ -4x² * 3x ]  −  [- 4x² * -7 ]  ;
 
             =  -12x³ − (28x²) ;

             =  -12x³ − 28x²  .
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8 0
3 years ago
Three sets of data are given below. What is the
Tcecarenko [31]
The answer is C. 7
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8 0
3 years ago
LOOK BELOW PLEASE AM MARKING BAINLIST PLEASE GUYS
Harman [31]

Answer:

C) 10

Step-by-step explanation:

hope it helps youuuuuu

5 0
3 years ago
Read 2 more answers
Pls help me!!! I will give u Brainlessness!!!
marshall27 [118]

Answer:

1. $1.5 per pound

2. 8 pounds

3. 3.2 apples

4. 25.6 apples

Step-by-step explanation:

The cost of per pound of apples on sale: 3/2 = 1.5

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for $12, the number of apples: 8/(5/16) = 25.6

4 0
3 years ago
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