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Lubov Fominskaja [6]
1 year ago
6

Henry and walter open savings accounts at the same time. henry invests $6,500 at 4.54% simple interest, and walter invests $7,10

0 at 4.74% simple interest. after eight years, how much more interest has walter earned than henry?
Mathematics
2 answers:
MatroZZZ [7]1 year ago
7 0
$331.52 is the correct answer
AysviL [449]1 year ago
3 0
The interest of money placed into investment that has a simple interest can be calculated through the equation,
                              I = Prn
Where I is the interest, P is the principal, r is the decimal equivalent of the given rate and n is the number of years. 

For Henry,
                        I = 6,500 x 0.0454 x 8 = 2360.8
For Walter,
                        I = 7,100 x 0.0474 x 8 = 2692.32
The difference between the calculated interests is 331.52. Thus, after 8 years, Walter will earn $331.52 in interest than Henry. 
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At a rally attended by 520 people, 30% were fantes, 25% were ewes, 15% were nzemas, 20% were gas and the rest were gonjas. How m
mariarad [96]

Answer:

No. of gonjas = 52

No. of more nzemas than fantes = 78

Step-by-step explanation:

Total no. of people = 520

No. of fantes = \frac{30}{100} × 520

No. of fantes = 156

No. of ewes = \frac{25}{100} × 520 = 130

No. of nzemas = \frac{15}{100} × 520 = 78

No. of gas = \frac{20}{100} × 520 = 104

No. of gonjas = 520 - (156 + 130 + 78 + 104) = 52

No. of fantes = 156

No. of nzemas = 78

No. of more nzemas than fantes = 156 - 78 = 78

Pie chart of the following problem is shown below.

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We can solve this problem by using the distance formula. The distance formula is: \sqrt{(x_{1}-x)^{2} + (y_{1} - y)^{2}} We can now put in values and solve.


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Answer:

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Step-by-step explanation:

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