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allsm [11]
3 years ago
14

Mrs. Lopez types at a constant rate. The constant of proportionality for the relationship between the number of words she types,

w, and the number of minutes she types, m, is 38. Write an equation to show this relationship
Mathematics
1 answer:
ch4aika [34]3 years ago
5 0

Answer:

w=38m

Step-by-step explanation:

w ∝ m

w = km

w = number of words

m= minutes

k = constant of proportionality = 28

Hence w=38m

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Bumek [7]

Answer:

x = 2.2

Step-by-step explanation:

Comment

f(x) = g(x) I don't think has any meaning for this question. I will just solve the equation.

Solution

7x - 12 = - 3x  + 10                    Add 3x to both sides

7x + 3x  -12 = - 3x + 3x +10    Combine

10x - 12 = 10                            Add 12 to both sides

10x -12 + 12 = 10 + 12              Combine

10x = 22                                  Divide by 10

10x/10 = 22/10

x = 2.2

3 0
1 year ago
Find the equation of the circle with center (4,5) which passes through the y-intercept of the line 5x-2y+6=0​
Elena-2011 [213]

Answer:

(x-4)^2 + (y-5)^2 = 20

Step-by-step explanation:

Rearrange the line equation of 5x - 2y + 6 = 0

So y = 5/2x +3

The y-intercept of the line equation is 3 as when x=0, y=3.

We know the Circle has the formula (x-4)^2 + (y-5)^2 = ?^2 from the question but with the intercept, we can find the entire equation as the y-intercept is (0,3) so we can substitute it into the equation to find the full equations so:

(0-4)^2 + (3-5)^2 = ?^2

This simplifies to:

(-4)^2 +(-2)^2 = ?^2

16 + 4 = 20 = ?^2

The answer is 20 so the equation of the circle is (x-4)^2 + (y-5)^2 = 20

3 0
2 years ago
Can someone help me?It's urgent and thank you!
lidiya [134]

Answer:

y = square root x2 - 5

Step-by-step explanation:

4 0
2 years ago
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bonufazy [111]
I think it is 25650
I read the quistion carefully
8 0
3 years ago
The equation of a parabola in the xy-plane is given as
Harrizon [31]

Answer:

B

Step-by-step explanation:

y=n(x+5)(x-3)

or y=n(x²-3x+5x-15)

or y=n(x²+2x-15)

=n(x²+2x+1-1-15)

=n(x+1)²-16n

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