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Rufina [12.5K]
1 year ago
9

Jose receives a $10 gift card for downloading music and wants to determine how many songs he can purchase. Each downloaded song

costs $1.19. Write and solve an inequality to determine how many songs Jose can purchase. What does the solved inequality represent?
With the $10 gift card, Jose can buy at most 9 songs.
With the $10 gift card, Jose can buy 9 or more songs.
With the $10 gift card, Jose can buy at most 8 songs.
With the $10 gift card, Jose can buy 8 or more songs.
Mathematics
2 answers:
kvasek [131]1 year ago
7 0

With the $10 gift card, Jose can buy at most 8 songs

x(the number of songs) less than or equal to 8

Charra [1.4K]1 year ago
3 0

Answer:

With the $10 gift card, Jose can buy at most 8 songs

Step-by-step explanation:

trust the process

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8) A school community had planned to reduce the number of grade 9 students per class room by constructing additional class rooms
Allisa [31]

Step-by-step explanation:

Let "c" be the original number of classrooms.

The 1200/c was the original number of students per classroom.

----

Equation:

1200/(c-4) = (1200/c)+10

Multiply thru by c(c-4)

---

1200c = 1200(c-4)+10c(c-4)

---

1200c = 1200c-4800 + 10c^2-40c

----

10c^2-40c-4800 = 0

c^2-4c-480 = 0

Factor:

(c-24)(c+20) = 0

---

Positive solution:

c = 24 (# of classrooms originaly planned)

7 0
1 year ago
(3x + y = 5<br>(3x +y = 8​
Gnesinka [82]

Answer:

no solution

Step-by-step explanation:

8 0
2 years ago
Explain why the product of a non-0 rational number and an irrational number is irrational?
kifflom [539]

Answer:

An irrational number is a number that can not be written as the quotient of two integer numbers.

Then if we have:

A = a rational number

B = a irrational number.

Then we can write:

A = x/y

Then the product of A and B can be written as:

A*B = (x/y)*B

Now, let's assume that this product is a rational number, then the product can be written as the quotient between two integer numbers.

(x/y)*B = (m/n)

If we isolate B, we get:

B = (m/n)*(y/x)

We can rewrite this as:

B = (m*y)/(n*x)

Where m, n, y, and x are integer numbers, then:

m*y is an integer

n*x is an integer.

Then B can be written as the quotient of two integer numbers, but this contradicts the initial hypothesis where we assumed that B was an irrational number.

Then the product of an irrational number and a rational number different than zero is always an irrational number.

We need to add the fact that the rational number is different than zero because if:

B is an irrational number

And we multiply it by zero, we get:

B*0 = 0

Then the product of an irrational number and zero is zero, which is a rational number.

5 0
2 years ago
Line f passes through points (2,9) and (10, 2). Line g passes through points (1, 13) and (9,
timofeeve [1]

Answer:

This would be neither as they're passing through points that are across from each other by a large distance.

8 0
1 year ago
What is an equation of the line that passes through the point (-4,3) and is
Tom [10]

Answer:

5x + 4y = - 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

4x - 5y = 20 ( subtract 4x from both sides )

- 5y = - 4x + 20 ( divide all terms by - 5 )

y = \frac{4}{5} x - 4 ← in slope- intercept form

with slope m = \frac{4}{5}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{4}{5} } = - \frac{5}{4} , thus

y = - \frac{5}{4} x + c ← is the partial equation

To find c substitute (- 4, 3) into the partial equation

3 = 5 + c ⇒ c = 3 - 5 = - 2

y = - \frac{5}{4} x - 2 ← in slope- intercept form

Multiply through by 4

4y = - 5x - 8 ( add 5x to both sides )

5x + 4y = - 8 ← equation in standard form

3 0
2 years ago
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