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alexandr402 [8]
3 years ago
8

On January 1, the balance in your account in $800. On July 1, you deposit $250. Your bank pays 5.8% interest. Calculate the amou

nt of simple interest that you earned on July 1
Mathematics
1 answer:
zmey [24]3 years ago
8 0

Answer:

The amount of simple interest  earned on July 1 is  $823.2.

Step-by-step explanation:

Here, the principal amount  =  $800

The rate of interest = 5.8%

Now, the interval of the deposition = from 1 January to 1 July

So, the duration of the deposited amount = 6 months

Now, 12 Months = 1 Year

So, 6 months  =  6 /12 = 0.5 year

Now,\textrm{SIMPLE INTEREST}  = \frac{P \times R \times T}{100}

\implies SI = \frac{800 \times 5.8 \times 0.5}{100}  =  23.2

So the interest  earned on $800 is $23.2.

Now, Amount = INTEREST + PRINCIPAL

⇒ A = $800 + $23.2  = $823.2

Hence,  the amount of simple interest  earned on July 1 is  $823.2.

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vfiekz [6]

Answer:

11/12 = 3/4

Step-by-step explanation:

sorry that's the only one I know :(

5 0
3 years ago
The length of a rectangle is 7 more than the width the area is 744 square centimeters find length and width of rectangle
andrezito [222]

Answer:

l=31\ cm\\\\w=24\ cm

Step-by-step explanation:

The formula that is used to calculate the area of a rectangle is:

A=lw

Where "l" is the lenght and "w" is the width.

You know that the area of that rectangle is:

A=744\ cm^2

And, according to the exercise, its lenght is 7 more than its width; then:

l=w+7

Then, you can make the corresponding substitution into the formula A=lw:

 744=(w+7)w

Simplify:

744=w^2+7w\\\\w^2+7w-744=0

Factor the equation. Find two numbers whose sum is 7 and whose product is -744. These are 31 and -24.

Then, you get:

(w-24)(w+31)=0\\\\w_1=24\\\\w_2=-31

The width of the rectangle is the positive value:

w=24\ cm

Then, the lenght is:

l=24+7\\\\l=31\ cm

8 0
3 years ago
1. Michael buys a chocolate bar which has 50% extra free. The chocolate bar usually weighs 200g. (a) How much extra chocolate do
KiRa [710]

Answer:

1/2 more chocalte or 50% more or 100g more

300g is the new weight

Step-by-step explanation:

200/2=100(50%)

100+200=300g

5 0
2 years ago
Dalia saved $3000 last year. She said $600 in the month of January. What percent of the total amount of money she saved last yea
Anni [7]
1. We assume, that the number 3000 is 100% - because it's the output value of the task. 
<span>2. We assume, that x is the value we are looking for. </span>
<span>3. If 100% equals 3000, so we can write it down as 100%=3000. </span>
<span>4. We know, that x% equals 600 of the output value, so we can write it down as x%=600. </span>
5. Now we have two simple equations:
1) 100%=3000
2) x%=600
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=3000/600
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 600 is what percent of 3000

100%/x%=3000/600
<span>(100/x)*x=(3000/600)*x       - </span>we multiply both sides of the equation by x
<span>100=5*x       - </span>we divide both sides of the equation by (5) to get x
<span>100/5=x </span>
<span>20=x </span>
<span>x=20
So 600 is 20% of 3000</span>
7 0
3 years ago
No work needs to be shown. just please help.
coldgirl [10]

Answer:

a=13

b=5

c=16.25

d=26.25

Step-by-step explanation:

4 0
3 years ago
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