Use the simple interest formula to solve.

Mathematics

2 answers:

Morgarella [4.7K]3 years ago

5 0

Let us assume that the rate is same throughout 5 years.

Principle amount is = $43500

Rate of interest = 2.25%

Time = 5 years

Interest = $\frac{principle*rate*time}{100}$

Interest = $\frac{43500\times2.25\times5}{100}$

= 4893.75

Hence interest incurred in 5 years is $4893.75

So, total amount payable after 5 years will be = $43500+4893.75$ = $48393.75

Hence, after 5 years Seth will pay $48393.75

xxTIMURxx [149]3 years ago

4 0

The formula of simple interest to find the amount
principal plus simple interest
p+si=a

the formula to find the simple interest
principle multiplied by rate of interest multiplied by time the whole divided by 100
p*r*t/100=si

let us replace the formula
43500*2.25*5/100=si
97875*5/100=si
489375/100=si
4893.75=si

4893.75+43500=a
48393.75=a
hope you found this useful
please put this as the brainliest answer please

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Allison is working two summer jobs, making $12 per hour lifeguarding and $8 per hour washing cars. Last week Allison worked 3 mo

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Answer:

Allison worked 6 hours lifeguarding and 3 hours washing cars.

Step-by-step explanation:

Let

Number of hours Allison worked lifeguarding last week = x

Number of hours Allison worked washing cars last week = y

1. Last week Allison worked 3 more hours lifeguarding than hours washing cars hours, then

$x-y=3$

<u>Lifeguarding:</u>

$12 per hour

$12x in x hours.

<u>Washing cars:</u>

$8 pere hour

$8y in y hours.

2. Allison earned a total of $96, hence

$12x+8y=96$

You get the system of two equations:

$\left\{\begin{array}{l}x-y=3\\ \\12x+8y=96\end{array}\right.$

Plot the graphs of these two equations (see attached diagram). These line intersect at point (6,3), so Allison worked 6 hours lifeguarding and 3 hours washing cars.