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3 years ago

12a+c-b; a=1/3,c=5, and b=9

Mathematics

2 answers:

kotykmax [81]3 years ago

7 0

Answer: 3,635 Views.

Step-by-step explanation:

b+c=10 becomes b=10-c. c+a=12 becomes c=12-a ... an a: c+a =12 & a+b=8. Subtracting the latter from the former eliminates the “a”s, leaving c-b=4. ... What are the values of A, B, C, D, A+B=8, B-D=5, A*C=21, and C*D=9?

Brums [2.3K]3 years ago

6 0

Answer:

Here we go in photo form

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The birth rate in an area is increasing 6% per annum. If there 20,000 children born in this area 2009 how many will be in 2018?

Harrizon [31]

Answer:

Step-by-step explanation:

Compound increase

20,000 x 1.06 to power of 9 = 33789 OR 33790

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increase by 6% 9 years

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3 years ago

Please help!

Mrrafil [7]

Answer:

$\sf C. \quad \dfrac{1}{9}$

Step-by-step explanation:

Addition Law for Probability

$\sf P(A \cup B)=P(A)+P(B)-P(A \cap B)$

Given:

$\sf P(A)=\dfrac{1}{3}=\dfrac{3}{9}$

$\sf P(B)=\dfrac{2}{9}$

$\sf P(A \cup B)=\dfrac{4}{9}$

Substitute the given values into the formula and solve for P(A ∩ B):

$\implies \sf P(A \cup B) = P(A)+P(B)-P(A \cap B)$

$\implies \sf \dfrac{4}{9} = \sf \dfrac{3}{9}+\dfrac{2}{9}-P(A \cap B)$

$\implies \sf P(A \cap B) = \sf \dfrac{3}{9}+\dfrac{2}{9}-\dfrac{4}{9}$

$\implies \sf P(A \cap B) = \sf \dfrac{3+2-4}{9}$

$\implies \sf P(A \cap B) = \sf \dfrac{1}{9}$

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What is the answer for 12

LenaWriter [7]

Answer:

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Step-by-step explanation: equal integer theorem.

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3 years ago

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After you find the solution, how would you check to make sure your answer is correct?

krek1111 [17]

Answer:

Plug in your variables value.

Step-by-step explanation:

For your case, plug in -6 into the y slot

12(5+2y)= -(6-9y) +4y

12(5+2x-6)= -(6-9x-6)+4y see if that works!

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3 years ago

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