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3 years ago

Lisa’s age is 4 years older than three times sammy’s Age. Lisa is 28 years old let s represent sammy’s Age

Mathematics

2 answers:

miss Akunina [59]3 years ago

8 0

Answer:

Sammy's age is 8 years.

Step-by-step explanation:

Let s represent Sammy’s age.

We have been given that Lisa’s age is 4 years older than three times Sammy’s age.

Three times Sammy’s age would be $3s$ .

4 years older than three times Sammy’s age would be $3s+4$ .

We are also told that Lisa is 28 years old. We can represent this information in an equation as:

$3s+4=28$

$3s+4-4=28-4$

$3s=24$

$\frac{3s}{3}=\frac{24}{3}$

$s=8$

Therefore, Sammy's age would be 8 years.

mel-nik [20]3 years ago

3 0

Answer:

Sammy is 8 years old

Step-by-step explanation:

3s + 4 = 28 is the equation you need to use you have to get s on its own to find Sammy's age

3s + 4 = 28 subtract 4 from both sides

3s = 24 divide both sides by 3

s = 8 Sammy is 8 years old

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Step-by-step explanation:

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where:

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Given:

A = $17,474.00
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Substitute the given values into the formula and solve for t:

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$\implies \sf \dfrac{17474}{7790}=\left(1.0125}\right)^{12t}$

$\implies \sf \ln\left(\dfrac{17474}{7790}\right)=\ln \left(1.0125}\right)^{12t}$

$\implies \sf \ln\left(\dfrac{17474}{7790}\right)=12t \ln \left(1.0125}\right)$

$\implies \sf t=\dfrac{\ln\left(\frac{17474}{7790}\right)}{12 \ln \left(1.0125}\right)}$

$\implies \sf t=5.419413037...\:years$

Therefore, the money was in the account for 5 years and 5 months (to the nearest month).

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Step-by-step explanation:

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Step 3: Multiply the number x by the multiplier, found in Step 2

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Apply the same method but with a number 1.18x

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