All categories

3 years ago

15−x+y=14−(−x−y) help plz

Mathematics

1 answer:

Inga [223]3 years ago

4 0

Answer:

$x=0.5$

$y=anything$

Step-by-step explanation:

15−x+y=14−(−x−y)

15-x+y=14+x+y

Subtract 14 from both sides

1-x+y=x+y

Subtract y from both sides

1-x=x

Add x to both sides

1=2x

2x=1

Divide both sides by 2

x=0.5

You might be interested in

The cross section of a parabolic reflector has a vertical axis of symmetry with its vertex at (0,0) . The focus of the reflector

Paha777 [63]

Answer:

The depth of the reflector is 0.84 feet

Step-by-step explanation:

(See the figure below)

The equation of a parabola centered at the origin with an axis of symmetry on y-axis is:

$x^{2}=4py$ (1)

With p the distance from the origin to the focus using p=6, the equation (1) of the parabola becomes:

$x^{2}=4(6)y=24y$ (2)

Note that the point B is on the parabola, so this point should satisfy the parabola equation (2) that allow us to use the value x=4.5 to find the y value associated to it, that it is the depth (h) of the reflector:

$(4.5)^{2}=24y$ , solving for y

$y=\frac{(4.5)^{2}}{24}\approx0.84\,ft$

4 0

4 years ago

A swimming pool measures 35 feet wide by 50 feet long. What is the ratio of the length to the perimeter in simplest form? Perime

mario62 [17]

L:P = L:2(L+W) = 50:2(50+30) = 50:160 = 5:16

8 0

3 years ago

What times what equals 19

andreyandreev [35.5K]

19 is prime meaning that only 1 and itself can multiply to get that number (excluding decimals and fractions)
so the answer would be 1 times 19

or if you want to multiply by a fraction to divide you could do
38 times 1/2=19

5 0

3 years ago

Read 2 more answers

1/3(x - 10) = - 4 x = ?

ki77a [65]

Answer:

x = -2

Step-by-step explanation:

1/3(x - 10) = - 4

1/3x - 10/3 = - 4

1/3x = -4 + 10/3

1/3x = -2/3