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3 years ago

Write a real world problem that can be modeled by the equation 1/3x +10 = 3/5x

Mathematics

1 answer:

kozerog [31]3 years ago

5 0

Idk how to put it in words for you to understand

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denis23 [38]

Answer:

$B = 325$

Step-by-step explanation:

Given

Total = 900

Singing = 600

Dancing = 500

None = 125

Required

Determine the number of students that participate in both

Representing; Singing with S, Dancing with D, Both singing and dancing with B and None with N;

In Set Notation;

$Total = (S - B) + (D - B) + N + B$

Substitute 900 for Total, 600 for S, 500 for D and 125 for N

$900 = (600 - B) + (500 - B) + 125$

Open Brackets

$900 = 600 - B + 500 - B + 125 + B$

Collect Like Terms

$900 = 600 + 500 + 125 - B - B + B$

$900 = 1225- B - B + B$

$900 = 1225- B$

Collect Like Terms

$900 - 1225 = -B$

$-325 = -B$

Multiply both sides by -1

$-1 * -325 = -B * -1$

$325 = B$

Reorder

$B = 325$

<em>Hence, the number of students that do not participate in both is 325</em>

4 0

3 years ago

The ratio of green marbles to red marbles in a bag is 5 to 6. If there is 30 green marbles how many red marbles are there?

givi [52]

Answer: 36

Step-by-step explanation:

6 0

3 years ago

When a number is increased by 13, the result<br> is 43. What equation fits this statement?

Tanzania [10]

Answer:

Step-by-step explanation:5

7 0

2 years ago

Read 2 more answers

After traveling 345 miles, the

vfiekz [6]

<h2>GOOD LUCK CHUCK :)))))))))</h2>

5 0

3 years ago

The remainder after diving x^4+3x^3-8x^2+5x-9 by x+5 is ____.

raketka [301]

Use the polynomial remainder theorem. It says that a polynomial $f(x)$ has remainder $f(c)$ upon division by $x-c$ .

Here we have

$f(x)=x^4+3x^3-8x^2+5x-9$

and $c=-5$ , so the remainder is

$f(-5)=(-5)^4+3(-5)^3-8(-5)^2+5(-5)-9=\boxed{16}$

6 0

3 years ago