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3 years ago

If 3/5 times x equals 12 then what is x

Mathematics

2 answers:

vovikov84 [41]3 years ago

8 0

Answer:

Step-by-step explanation:

12 divided by 3/5 is equal to 20

EleoNora [17]3 years ago

7 0

The answer to the question is 20.

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Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables.

Pepsi [2]

Answer:

$x=20$

$y=10\,\sqrt{3}$

Step-by-step explanation:

In the triangle we have the following trigonometric equations:

$tan(60^o)=\frac{opposite}{adjacent} \\\sqrt{3} =\frac{y}{10} \\y=10\,\sqrt{3}$

and also:

$cos(60^o)=\frac{adjacent}{hypotenuse}\\\frac{1}{2} =\frac{10}{x}\\x=20$

8 0

3 years ago

Simplify 4 + (-3) - 2 times (-6)

iVinArrow [24]

Step-by-step explanation:

$= 4 + ( - 3) - 2 ( - 6)$

here ( + ) × ( - ) = ( - )

$= 4 - 3 + 12$

$= 4 + 12 - 3$

$= 16 - 3$

$= 13$

8 0

2 years ago

Read 2 more answers

Find the distance between the points (0,-2) and (-8,-8)

Ostrovityanka [42]

Answer:

Distance between the points = 10 units

Step-by-step explanation:

Given points:

(0,-2) and (-8,-8)

To find the distance between the two points.

Solution:

Applying distance formula to find the distance between the points.

For points $(x_1,y_1)$ and $(x_2,y_2)$ the distance is given as:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Plugging in the given points in the formula.

$d=\sqrt{(-8-0)^2+(-8-(-2))^2}$

$d=\sqrt{(-8)^2+(-8+2))^2}$

$d=\sqrt{(-8)^2+(-6)^2}$

$d=\sqrt{64+36}$

$d=\sqrt{100}$

$d=\pm10$

Since distance is always positive. So $d=10$ units.

3 0

3 years ago

The angle of elevation of the top of a tower from a point 100m away is 45 degrees. What is the height of the tower to the neares

vladimir2022 [97]

Answer:

SOHCAHTOA.

TOA=opposite/adjacent.

Tan45=100/h.

h tan45=100.

h×1=100.

h=100m

7 0

4 years ago

Read 2 more answers

What is the y-intercept of the equation 2x+3y=6?

Natali [406]

(0,2) is the y-intercept

4 0

3 years ago