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4 years ago

when a certain number is added to 11 and the result is multiplied by 3, the final result is 45 . find the number

Mathematics

1 answer:

oksian1 [2.3K]4 years ago

5 0

Answer:

Step-by-step explanation:

Let the number = x

Added to 11 = 11+x

Multiply result by 3 = 3(11+x)

Final result = 45

Solving

3(11 + x) =45

33 +3x = 45

3x= 45-33

3x=12

X=4 by dividing both side by 3

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3 years ago

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The simple interest formula is equal to

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$t=20\ years\\ P=\$8,500\\r=0.0812$

substitute in the formula above

$A=8,500(1+0.0812*20)$

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$A(t)=8,500(1.0068)^{12t}$ ------> equation A

$A(t)=8,500(1+0.0812t)$ -----> equation B

using a graphing tool

see the attached figure

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when a certain number is added to 11 and the result is multiplied by 3, the final result is 45 . find the number​

when a certain number is added to 11 and the result is multiplied by 3, the final result is 45 . find the number