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3 years ago

13

the ratio of country albums to jazz albums in a music collection is 2:3 . if the music collection has 45 albums, how man are cou

ntry albums?

2 answers:

V125BC [204]3 years ago

4 0

I think it would be 18 because 2:3 times 9 is 27+18

bekas [8.4K]3 years ago

4 0

18 country and 27 jazz

You might be interested in

Find the equality represented by the graph?

Talja [164]

Answer:

$-x+4y$

Step-by-step explanation:

Given: graph

To find:the inequality

Solution:

Equation of a line passing through points $(x_1,y_1),(x_2,y_2)$ is given by $y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

Take $(x_1,y_1)=(0,3),(x_2,y_2)=(4,4)$

So,equation of line is evaluated as follows:

$y-3=\frac{4-3}{4-0}(x-0)\\ y-3=\frac{x}{4}\\ 4y-12=x\\-x+4y=12$

As per the graph,inequality is $-x+4y$

Here, use sign < and not $\leq$ as line in the graph is dotted that is points on the line are excluded.

4 0

3 years ago

A grasshopper jumps off a tree stump. The height, in feet, of the grasshopper above the ground after t seconds is modeled by the

Monica [59]

The height, in feet, of the grasshopper above the ground after t seconds is modeled by the function , which is

$h(t) =-t^2+\frac{4}{3}t+ \frac{1}{4}$

When the grasshopper land on the ground,

$h(t)=0$

that is,

$-t^2+\frac{4}{3}t+ \frac{1}{4}=0$

Multiplying whole equation by 12 to get rid of denominators 3 and 4

$-12t^2+16t +3=0$

$(3-2t)(6t+1)=0 \\ 3-2t=0 , 6t+1=0 \\ t= \frac{3}{2} , \frac{-1}{6}$

And time cant be negative, so the correct option is

$t = \frac{3}{2}=1.5 seconds$

Correct option is C .

0 0

4 years ago

Match each term with the appropriate example

brilliants [131]

Answer:

1. Absolute value : d. | - 7| = 7

2. All real numbers : b. 3x = 3x

3. x = -5 : c. 5x = -25

4. No solution : a. |2x| = -10

5. Adding the opposite to both sides of the equation. : e. Canceling

Step-by-step explanation:

1. Absolute value : d. | - 7| = 7

The absolute value is considered the distance to 0... so if there's a negative sign in the value, the negative sign disappears.

2. All real numbers : b. 3x = 3x

If we divide both sides by 3, we have x = x, which will always be true.

3. x = -5 : c. 5x = -25

If we multiply each side by 5, we have 5(x) = 5(-5) thus 5x = -25

4. No solution : a. |2x| = -10

The result of an absolute value cannot be a negative number. So, that has no solution since there's no value of x that would make this true.

5. Adding the opposite to both sides of the equation. : e. Canceling

If you have for example (x = -5) and you add 5 on both sides, you cancel the value on the right side... (becomes x + 5 = 0).

8 0

3 years ago

Jake has $25.000 worth of property damage insurance and $1,000- deductible collision insuranceHe caused an accident that damaged

Flauer [41]

Answer:

I think b will be good for you

5 0

4 years ago

The function f(x) = 2x 1 represents the altitude of a plane, where x is the time in minutes. the function g(x) = x2 − 10 represe

Lostsunrise [7]

To estimate the value for g(10), that means that you have to substitute 10 in every x of g(x), then $$g(x) =x^2-10$ exists g(10) = 90.

The value of g(10), we have to substitute in every x of f(x), the

$f(x) = 2x + 1$ exists f(90) = 181

Therefore, the value of f[g(10)] exists 181.

<h3>How to estimate the value of f[g(10)]?</h3>

To estimate the value for g(10), that means that you have to substitute 10 in every x of g(x), then

$$g(x) =x^2-10$

substitute the value of x = 10

$$g(10) = (10)^2-10$

simplifying the equation, we get

g(10) = 100 - 10

g(10) = 90

We have the value of g(10), we have to substitute in every x of f(x), then

f(x) = 2x + 1

substitute the value of x = 90

f(90) = 2(90) + 1

simplifying the equation, we get

f(90) = 180 + 1

f(90) = 181

The value of f[g(10)] exists 181.

Therefore, the correct answer is option b) 181.

To learn more about functions refer to:

brainly.com/question/27063206

#SPJ4

5 0

1 year ago