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3 years ago

This table gives a few (x,y) pairs of a line in the coordinate plane.

Mathematics

1 answer:

fomenos3 years ago

8 0

Answer:

(-22,0)

explanation:

You subtract 10 from 8 and you get -2 and if you subtract 10 from -2 you get -12 so there for you are subtracting by 10 on the x-values so if you do -12 - 10 = -22 making your answer (-22,0).

Hope this helps (. ❛ ᴗ ❛.)

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I have k quarters, five less quarters than nickels and one more than twice as many dimes as quarters. Find the value of the coin

Alenkinab [10]

Answer:

(35k + 20) cents

Step-by-step explanation:

First of all, let us have the value of each unit:

1 quarter = 25 cents

1 nickel = 5 cents

1 dime = 10 cents

Given that number of quarter = k

Quarters are 5 lesser than Nickels, so number of nickels = k+5

One more than twice as many dimes as quarters:

k = 2 $\times$ Number of Dimes + 1

So, number of dimes = $\frac{1}{2}(k-1)$

Value of quarters = $25 \times k$ cents

Value of nickels = $5 \times (k+5) = (5k+25)\ cents$

Value of dimes = $\frac{1}{2}(k-1) \times 10 = (5k-5)\ cents$

So, total value of coins =

$25k + 5k +25 +5k-5\\\Rightarrow (35k+20)\ cents$

5 0

3 years ago

Read 2 more answers

Trigonometry help; how would I even do these?

Nady [450]

Answer:

0?8

Step-by-step explanation:

Cos(A) = Adjacent/hypotenuse

Cos(A) = 36/45

=0.8

6 0

3 years ago

Find the midpoint of the coordinates (-2,1) and (4,-4)

kow [346]

(-2,1)
(4,-4)

$\\ \rm\longmapsto P(x,y)$

$\\ \rm\longmapsto \left(\dfrac{-2+4}{2},\dfrac{1-4}{2}\right)$

$\\ \rm\longmapsto \left(\dfrac{2}{2},\dfrac{-3}{2}\right)$

$\\ \rm\longmapsto \left(1,\dfrac{-3}{2}\right)$

6 0

2 years ago

Write the equation in slope-intercept form: 4x -2y =12

DedPeter [7]

$4x - 2y = 12 \\ \: \: \: \: \: \: \frac{ - 2y}{ - 2} = \frac{ - 4x}{ - 2} \: + \frac{12}{ - 2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: y = 2x - 6$

Therefore, the answer is 1) y = 2x - 6

3 0

3 years ago

What’s the equation of the line that passes through (2,3) and is parallel to the line 12x-5y=2

TiliK225 [7]

12x-5y=2

-5y=2-12x

y=-2/5+12/5x

should know the m=12/5

and (2,3) bring them to the line equation:

3=12/5x2+b

6/5+b=3

b=3-6/5

b=9/5

y=12/5x+9/5

Which means the answer is not in the choices.

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3 years ago