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ELEN [110]
3 years ago
15

Varies inversely as If x = 6 then y = 8. Find y when x = 4 . Y=

Mathematics
1 answer:
icang [17]3 years ago
8 0

Answer:

Explanation:

The statement is expressed as

y

∝

1

x

inverse means

1

variable

To convert to an equation introduce k, the constant of variation.

y

=

k

×

1

x

⇒

y

=

k

x

To find k use the given condition that y = 8 when x = 4

8

=

k

4

⇒

k

=

4

×

8

=

32

⇒

equation is

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

∣

∣

∣

2

2

y

=

32

x

2

2

∣

∣

∣

−−−−−−−−−−−−

x

=

16

→

y

=

32

16

⇒

y

=

2

when

x

=

16

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Which equation represents the line<br> 2x + y = 9 in slope-intercept form?
andriy [413]

Answer:

y=-2x+9

Step-by-step explanation

you would subtract  2x on both sides resulting in y=-2x+9 and you have the answer. Your slope is is -2 and y-intercept is 9

3 0
3 years ago
Convert 4.5% to a decimal
Jobisdone [24]

Answer:

0.045

Hope this helpful! Have a great night/day!

7 0
3 years ago
Read 2 more answers
(3,-5) (-1,5) you have to find the slope
nirvana33 [79]

Answer:

Hope this helps!

Step-by-step explanation:

Slope = 5/-2

Slope (m) =

ΔY

ΔX

=

5

-2

= -2.5

θ =

arctan( ΔY ) + 180°

ΔX

= 111.80140948635°

ΔX = -1 – 3 = -4

ΔY = 5 – -5 = 10

Distance (d) = √ΔX2 + ΔY2 = √116 = 10.770329614269

Equation of the line:

y = -2.5x + 2.5

or

y =  

- 5 x

2

+  5

2

When x=0, y = 2.5

When y=0, x = 1

3 0
3 years ago
Fatima paid for 5 pallets of grass to be delivered.
slava [35]
Fatima paid for 5 pallets of grass to be delivered.
• Each pallet of grass cost $129.95.
• Fatima paid $76.20 for delivery.
What is the total amount Fatima paid?
A $725.95
B $649.75
C $581.95
D $1,030.75
Answer:
A $725.95
Step-by-step explanation:
Given:
Number of Pallets = 5
Cost of each pallet = $129.95
Total amount spend on Pallets = Number of Pallets × Cost of each pallet =
Also given;
Amount spend on Delivery = $76.20
Total Amount Paid by Fatima = Total amount spend on Pallets + Amount spend on Delivery =
Hence Fatima paid a total amount of $725.95.
5 0
3 years ago
2x + y + z = 9<br> -x-y +z = 1<br> 3x - y +z=9
DiKsa [7]

Answer:

603 hope this helps

3 0
3 years ago
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