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creativ13 [48]
3 years ago
11

2a+6b=100 what is 5a+15b=?

Mathematics
2 answers:
algol [13]3 years ago
8 0

Answer:

Step-by-step explanation:Simplifying

2a + 6b = 100

Solving

2a + 6b = 100

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-6b' to each side of the equation.

2a + 6b + -6b = 100 + -6b

Combine like terms: 6b + -6b = 0

2a + 0 = 100 + -6b

2a = 100 + -6b

Divide each side by '2'.

a = 50 + -3b

Simplifying

a = 50 + -3b

Damm [24]3 years ago
7 0

Answer:

5(50x - 3bx + 50 - a) or 5(a + 3b) (Depending on the question and what is asked)

Step-by-step explanation:

2a + 6b = 100

a = 50-3b

b = 50/3 - 1/3a

replace

5a + 15b =

5*50-3b + 15*50/3 - 1/3a =

5(50x - 3bx + 50 - a)

^This would be the answer if we use the same value of a and b from the 2a+6b=100 equation.

If we use a unknown value for a and b. Then, the answer would be 5(a + 3b).

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sdas [7]

Answer:

2 + 3i, midpoint is (2,3)

Step-by-step explanation:

we need to find the midpoint between (-1+9i) and B=(5-3i)

To find the midpoint of two points (a+bi)  and (c+di) in a complex plane,  

we apply formula

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\frac{4}{2} + \frac{6}{2}i

2 + 3i , so midpoint is (2,3)


8 0
3 years ago
Read 2 more answers
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vovangra [49]
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White raven [17]

Answer:

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Step-by-step explanation:

You have the proportion

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Answer:

b

Step-by-step explanation:

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