3 years ago

At what rate percent per year will a sum of money double itself in 15 years

Mathematics

1 answer:

Nikitich [7]3 years ago

4 0

I’m also still at finding answer so keep calm and I will give answer

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Ms. Lee wrote a test with 15 multiple choice short answer questions. The multiple choice questions x are worth 5 points and the

hram777 [196]

x + y = 15 and 5x + 10y = 100 are the system of equations that represent this situation

Solution:

Let "x" be the number of multiple choice questions

Let "y" be the number of short answer questions

Worth of 1 multiple choice questions = 5 points

Worth of 1 short answer question = 10 points

Ms. Lee wrote a test with 15 multiple choice short answer questions

Therefore,

number of multiple choice questions + number of short answer questions = 15

x + y = 15 -------- eqn 1

The maximum number of points possible on the test is 100

Therefore, we frame a equation as:

number of multiple choice questions x Worth of 1 multiple choice questions + number of short answer questions x Worth of 1 short answer question = 100

$x \times 5 + y \times 10=100$

5x + 10y = 100 ------- eqn 2

Thus eqn 1 and eqn 2 are the system of equations that represent this situation

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3 years ago

Tamyra's soccer team scored a total of 40 goals this year. They scored 15 more goals this year than they did last year. Write an

Darina [25.2K]

40-15=g so they scored 25 this year and 25+15=40

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3 years ago

M=3rt squared -2rv solve for v.

insens350 [35]

M = 3rt^2 - 2rv
2rv = 3rt^2 - M
v = (3rt^2 - M)/2r

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3 years ago

In an election, 471 people voted. Candidate B received 2/3 of the votes. How many votes did Candidate B receive?

dezoksy [38]

Answer:

Step-by-step explanation:

471/3 * 2 = 314

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4 years ago

Read 2 more answers

12+6 over N What is the value of when N= 2? A.6 B.9 C.12 D.18

Anna71 [15]

Answer:

thank you to your question i dont know if my

answer is correct this is my answer letter B

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