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Gelneren [198K]
2 years ago
6

If a + b = 6 and a - b = 4, What is the value of 2a + 3b?

Mathematics
2 answers:
tangare [24]2 years ago
4 0
The value of 2a + 3b is 13
Luden [163]2 years ago
3 0

Answer:

13

Step-by-step explanation:

a + b = 6 and a - b = 4

Add the two equations together

a + b = 6

a - b = 4

----------------

2a = 10

Subtract the two equations

a + b = 6

- a + b = -4

----------------

2b = 2

b =1

Multiply by 3

3b =3

2a +3b

we know 2a = 10 and 3b = 3

10+3

13

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2 years ago
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What is the average rate of change of f over the interval [3,4]?
masya89 [10]

Answer:

4

Step-by-step explanation:

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3 0
3 years ago
What is log 5 + log 2?
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Hey!~ 

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5 0
3 years ago
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Two sides and an angle are given. determine whether the given information results in one triangle, no triangle, three triangles,
Crazy boy [7]
We are given 2 sides 18.7, 16.1 and a NON-included angle.
We have to calculate the altitude of the triangle.
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Source:
http://www.1728.org/trigssa.htm





3 0
2 years ago
A total of 234 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t
lorasvet [3.4K]
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2a = s
after you get the equations you solve. plug 2a into the above equation.
so u get 
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78 = a
so 78 adult tickets were sold

3 0
3 years ago
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