All categories

2 years ago

5x -2y=18 what does x and y equal?

Mathematics

1 answer:

Ilia_Sergeevich [38]2 years ago

6 0

Answer:

$x,y\ could\ be\ any\ real\ numbers$

Step-by-step explanation:

$As\ a\ linear\ equation\ in\ two\ variable\ has\ infinite\ solutions,\\5x-2y=18, will\ also\ have\ infinite\ solutions\ and\ x\ and\ y\ can\ take\ any\ real\ values.$

You might be interested in

You have 90$ in your pocket and you spent 30% of your money on a new football. How much was the cost of the football?

SpyIntel [72]

Answer:

$27

Step-by-step explanation:

0.3 x 90 = $27

30% of your money is $27, so the football must've cost $27.

3 0

2 years ago

Read 2 more answers

Find all solutions in the interval [0,2π) of the equation.

Sauron [17]

Step-by-step explanation:

2sin(x)cos(x) - sin(x) + 2cos(x)-1= 0

<=> sinx( 2cosx -1) + ( 2cosx -1) =0

<=> (sinx +1) + ( 2cosx-1)=0

<=> sinx=-1 or cosx= 1/2

+) sinx=1 => x= pi/2 + k×2pi

+)cosx=1/2 => x= pi/3+ k×2pi or x=-pi/3 + k×2pi

x€ [0,2pi] => x= pi/2, pi/3.

3 0

2 years ago

Can any one tell me how to do this problem?

Vika [28.1K]

(1/2)/2=3/x
we can cross multiply, aka multiply both sides by 2x
(1/2)x=2*3
(1/2)x=6
times 2/1 both sides
x=12

5 0

2 years ago

A researcher is exploring the notion that there is an economy of scale in raising children. While having one child might add to

trasher [3.6K]

Answer:

The probability is $G = 85%$

Step-by-step explanation:

From the question we are told that

The percentage of parents that have one child under 18 in their homes is k = 15%

The percentage of parents that have two children is T = 65%

The percentage of parents that have three or more children is Y = 20%

Generally the probability that any given family who is selected have two or more children at home is mathematically evaluated as

$G = T + Y$

=> $G = 65% + 20%$

=> $G = 85%$

4 0

3 years ago

What is the area of a rectangle that measures 4 cm by 12cm

Softa [21]

A = l*w
A = 4*12 = 48cm^2
The area of the rectangle is 48cm^2 (cm squared)

8 0

3 years ago