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bogdanovich [222]
2 years ago
11

Sarah's father was 30 when she was born.

Mathematics
2 answers:
Kipish [7]2 years ago
6 0

Answer:

If Sarah is 15, then the answer is 45. If Sarah is 20, then the answer is 60, if Sarah is 30, then the answer is 90. It all depends on how old Sarah is right now. 15 x 3 = 45. 20 x 3 = 60. 30 x 3 = 90.

Basile [38]2 years ago
3 0

Answer:

He is B) 45 years old

Step-by-step explanation:

If he was 30 when she was born, he was 40 when she was 10, and he was 45 when she was 15.

15 x 3 = 45

Edit: It can actually be any of them....

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4x-6y=14 slope and y intercept?
alexandr1967 [171]

Answer:

m = 0.667

Step-by-step explanation:

Calculate and show the solution for the x-intercept and y-intercept of 4x - 6y = 14.

Calculate the graph plot coordinates for 4x - 6y = 14

Solve 4x - 6y = 14 for x and also for y.

Calculate and show the solution for the slope of 4x - 6y = 14

Find x-intercept

The x-intercept is where the graph crosses the x-axis. To find the x-intercept, we set y1=0 and then solve for x.

4x - 6y = 14

4x - 6(0) = 14

x1 = 3.5    y1 = 0

Find y-intercept

The y-intercept is where the graph crosses the y-axis. To find the y-intercept, we set x2=0 and then solve for y.

4x - 6y = 14

4(0) - 6y = 14

y2 = -2.333    x2 = 0

Get Graph Plot Coordinates

Getting two graph points will allow you to make a straight line on a graph. The plot coordinate format is (x1,y1) and (x2,y2).

Thus, we use the x-intercept and y-intercept results above to get the graph plots for 4x - 6y = 14 as follows:

(x1,y1) and (x2,y2)

(3.5,0) and (0,-2.333)

Find slope

The slope of the line (m) is the steepness of the line. It is the change in the y coordinate divided by the corresponding change in the x coordinate. Simply plug in the coordinates from above and solve for m to get the slope for 4x - 6y = 14

m = (y2 - y1)/(x2 - x1)

m = (-2.333 - 0)/(0 - 3.5)

m = 0.667

hope this is correct! c:

3 0
2 years ago
Read 2 more answers
What is the value of n in the equation 1/2(n – 4) – 3 = 3 – (2n + 3)?
Travka [436]
Distribute 1/2 to <span>(n – 4):

</span>\frac{1}{2} \times n = \frac{1}{2}n
\frac{1}{2} \times -4 = -2
<span>
Subtract (2n + 3):

</span>- (2n + 3) = -2n -3
<span>
Your equation should now look like this:

</span>\frac{1}{2}n - 2 - 3 = 3 - 2n - 3
<span>
Combine like terms on both sides:

</span>-2 - 3 = -5
3 - 3 = 0
\frac{1}{2}n - 5 = -2n
<span>
Subtract 1/2n from both sides:

</span>-5 = -\frac{5}{2}n
<span>
Divide both sides by -5/2 to get n by itself:

</span>n = 2
<span>
The value of n is 2.</span>
8 0
3 years ago
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A group of friends on a camping trip has 3 2/5 pound of Trail Mix they divided up evenly among themselves each person gets 1/5 l
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There are 17 people. 3 Times 5 = 15 + 2 = 17
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3 years ago
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Vilka [71]

Answer:

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Step-by-step explanation:

so its 9+22-28=3

6 0
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Evaluate x2/y + x2/z , if x = 10, y = -5, and z = -2.
ch4aika [34]
X^2/y + x^2/z =
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100/(-5) + 100/(-2) =
-20 - 50 =
-70
6 0
3 years ago
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