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3 years ago

What is 15x-7y=-8 in slope intercept form

Mathematics

2 answers:

Kamila [148]3 years ago

7 0

Answer:63

Step-by-step explanation:

arlik [135]3 years ago

3 0

Answer: y=15x/7 + 8/7
Explanation:
15x-7y=-8
-15x = -15x
-7y= -15x-8
_________
-7= -7
_________
y= 15x/7+ 8/7

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WINSTONCH [101]

.75

2.5/3.33 = .75

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3 years ago

24 boxes of crayons wheigh 235.2 onces how many ounces is each box of crayobs

svetlana [45]

Answer:

9.8

Step-by-step explanation:

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Vera_Pavlovna [14]

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Step-by-step explanation:

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3 years ago

Amy has a piece of wood that measures 42 inches. The model shows the length remaining after she cut a piece from the 42-inch pie

Hitman42 [59]

Answer:

She has 42 pieces of wood each of 1 inch of length.

Step-by-step explanation:

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Total length / unit lenght = Number of pieces

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3 years ago

A 29-meter ladder is sliding down a vertical wall so the distance between the top of the ladder and the ground is decreasing at

vitfil [10]

Complete question

A 29-meter ladder is sliding down a vertical wall so the distance between the top of the ladder and the ground is decreasing at 7 meters per minute. At a certain instant, the bottom of the ladder is 21 meters from the wall.

What is the rate of change of the distance between the bottom of the ladder and the wall at that instant(in meters per minute)

Answer:

$\frac{dx}{dt}=11.94m/min$

Step-by-step explanation:

From the question we are told that

Slant height $z=29m$

Change in Vertical height $\triangle y=7m/s$

Horizontal length $x=21$

Generally in finding the distance form the top to the bottom of the wall it is mathematically given by

$x^2+y^2=z^2$

$21^2+y^2=29^2$

$y^2=29^2+21^2$

$y=35.81$

Generally solving for the differential equation is mathematically represented as

$x^2+y^2=29^2$

$2x*\frac{dx}{dt} +2y*\frac{dy}{dt} =0$

$x*\frac{dx}{dt} +y*\frac{dy}{dt} =0$

$(21)*\frac{dx}{dt} +(35.81)*(-7) =0$

$(21)*\frac{dx}{dt} -250.64 =0$

$\frac{dx}{dt}=\frac{250.64}{21}$

$\frac{dx}{dt}=11.94m/min$

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3 years ago