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Zanzabum
2 years ago
6

Regina’s teacher recently gave her a homework assignment on solving equations. Since she has been thinking about saving for a ne

w cell phone, she decided to use the assignment as an opportunity to model a savings plan.
She created this equation to model the situation. In it, y represents the total amount saved for the new cell phone, 74 is the amount of money she has now, 40 is the amount of money she saves each month for the phone, and x represents the number of months since she started saving a regular amount:

74 + 40x = y.

She then solved the equation to determine how many months she’d need to save to have enough to purchase the new cell phone. Review her work, and select the error.

Mathematics
2 answers:
marta [7]2 years ago
7 0

Answer:

The answer is 4.

Step-by-step explanation:

creativ13 [48]2 years ago
6 0

Answer:

sdcsdcsdcs    

Step-by-step explanation:

sdcdsc

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Artemon [7]
In order to use the simple interest formula, we first define the variables. The interest would be equal to Samuel's desired amount $ 2,488 minus the principal amount of $ 1,800 which is then equal to $ 688. The rate must be in decimal form which is equal to 0.12 while t is expressed in years. Substituting the values, t is equal to 3. Thus, it will take 36 <span>months for Samuel's account balance to reach $2,448. </span>
6 0
3 years ago
Choose as many answers as apply.
Pie

Answer:

b,c,d

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Population Growth The population of a town of 5000
Nesterboy [21]

Answer:

a) A=5000{(1.03)}^{t}

b) 5464 inhabitants.

Step-by-step explanation:

The formula used for compound interest becomes very helpful in this case.

A=P{(1+r)}^{t}\\\\When:\\A = Final Value\\P = Initial Value\\r = Rate of Change (Decimal)\\t = Time (Years)

Knowing this, we can easily calculate the value for any year, counting from the original 5000.

From this formula, we can derive a specific one that will serve for any value of <em>t</em>.

a)

A=5000{(1+0.03)}^{t}\\A=5000{(1.03)}^{t}

b) Apply the formula:

A=5000{(1.03)}^{3}\\A=5000(1.092727)\\A=5463.635=5464

The town will have 5464 inhabitants.

5 0
3 years ago
7p2-3-3p3 in standard form
Mekhanik [1.2K]

Answer:

-3p^3+7p^2-3

Step-by-step explanation:

7 0
2 years ago
Find the value of x.<br> 76
azamat
This picture is depicting a straight line, therefore all we have to do is subtract 76 from 180. You get 104

Your answer is 104 degree
3 0
3 years ago
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