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2 years ago

Three more than a number is 15

Mathematics

1 answer:

podryga [215]2 years ago

7 0

Answer:

The number is 12

Step-by-step explanation:

If 15 is three more than the number is three less so you do, 15 - 3 which is 12.

I hope this helps

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For a given recipe, 12 cups of flour are mixed with 18 cups of sugar. How many cups

disa [49]

Answer:

x= 3

Step-by-step explanation:

12 / 6 = 2

18 / 6 = 3

Flour; 2 4 6 8 10 12

sugar; 3 6 9 12 15 18

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3 years ago

What are angles a,b,c,d ?

nevsk [136]

I’m not sure but the answers maybe a = 101 b = 97 c = 83 d = 79

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3 years ago

An internet cafe charges a base rate to connect to WiFi. A user must also pay an additional hourly rate for the service. The tot

babunello [35]

Answer:

1. f(x) is the total cost

2. x is the hours spent on the internet

3. the base rate is 3.50

4. hourly charge is .75

5. 4.63

Step-by-step explanation:

1. f(x) is the total cost or the amount of money he has to pay

2. x is the hours spent on the internet, it is the time spent on the internet

3. the base rate is 3.50, or the minimum amount just to get connected

4. hourly charge is .75

5. Let x = 1.5 for the hour and a half

f(1.5) = .75(1.5) + 3.5

1.125+3.5

4.625

To the nearest cent

4.63

8 0

3 years ago

Read 2 more answers

Without sketching the graph, find the x-intercepts and y-intercepts of the graph of the equation y=x²-x-6 What is/are the x-inte

oksian1 [2.3K]

Given the equation:

$y=x^2-x-6$

Let's find the x-intercepts and the y-intercepts of the graph.

• x-intercept:

The x-intercept are the points where the parabola crosses the x-axis. At x-intercept the y-value is zero.

To find the x-intercepts, substitute 0 for y and solve for x.

We have:

$0=x^2-x-6$

Rewrite the equation:

$x^2-x-6=0$

Factor the left hand side of the equation:

$(x-3)(x+2)=0$

Equate each factor to zero:

x - 3 = 0

Add 3 to both sides:

x - 3 + 3 = 0 + 3

x = 3

x + 2 = 0

Subtract 2 from both sides:

x + 2 - 2 = 0 - 2

x = -2

Therefore, the x-intercepts are:

3, -2

• y-intercept:

The y-intercept is the point where the parabola crosses the y-axis. The x-value at the y-intercept is zero.

To find the y-intercept, substitute 0 for x and solve:

$\begin{gathered} y=0^2-0-6 \\ \\ y=-6 \end{gathered}$

Therefore, the y-intercept is -6.

In point form:

x-intercept: (3, 0), (-2, 0)

y-intercept: (0, -6)

ANSWER:

A. The x-intercepts are (3, 0), (-2, 0)

A. The y-intercept is (0, -6)

5 0

1 year ago

Let f(x) = - 13x + 12 and g(x)= x² + 2.--Find f(3)/g(3).f(3)/g(3) = (?)(Type an integer or a simplified fraction.)

mel-nik [20]

We have the next two equations:

$f(x)=-13x+12$

And

$g(x)=x^2+2$

We need to find f(3)/g(3)

First, let's find f(3):

$f(3)\text{ = -13(3)+12 = -27}$

Then g(3):

$g(3)=(3)^2+2\text{ = 11}$

Now, the equation f(3)/g(3) :

$\frac{f(3)}{g(3)}=\frac{-27}{11}$

-27/11 is the result.

3 0

1 year ago