All categories

3 years ago

The product of 15 and a number X is -75. Write the equation, and solution for X.

Mathematics

2 answers:

elixir [45]3 years ago

7 0

Answer:

x = -5

Step-by-step explanation:

15*x = -75

divide both sides by 15

(15x)/15 = -75/15

x = -5

polet [3.4K]3 years ago

3 0

Answer: $x = -5$

Step-by-step explanation:

If a product of 15 and an unknown number equals -75 the equation should look like this:

$15x = -75$

Now to solve for x:

1. $\frac{15x}{15} = \frac{-75}{15}$

2. $x = -5$

You might be interested in

A cart travels 3.6 meters in 1.8 seconds. What is the average speed of the cart?

Lady_Fox [76]

For solving this we need the change in distance and the change in time. You said that the change in time is 1.8 seconds and the change in distance is 3.6 meters. ( This is assuming it started at 0 meters and started at 0 seconds )

Since the starting was 0,0 we can toss them out as they add no value. Now since speed is labeled (in this case) m/s, we divide how many meters it traveled over how many seconds it took to travel it.

3.6 / 1.8 = 2

The average speed of the cart is 2 m/s

6 0

3 years ago

What is the slope of the line given by the equation -3x = 30 - 5y?

zaharov [31]

Answer:

The slope of the line given by the equation -3x=30-5y is $\frac{3}{5}$ .

Step-by-step explanation:

-3x=30-5y

Move the -3x to the right side of the equal sign and the -5y to the left.

5y=30+3x

By switching them to opposite sides, their sign changes from - to +.

Then, divide both sides by 5 in order to isolate the y.

$\frac{5y}{5} = \frac{30+3x}{5}$

You get:

y= $\frac{3}{5} x +6$

According to y=mx+b, mx refers to the slope.

In this case, the slope would be $\frac{3}{5}$ .

8 0

3 years ago

HUUURRRYYYY PLEASEEEEE!!!!!!!What is the approximate volume of a cone with a height of 6 mm and radius of 18 mm? Use 3.14 to app

bulgar [2K]

V=pir^2(h/3)
V= 3.14x18^2x6/3
V= about 2034.72

3 0

4 years ago

6x+9+2x What is the answer

slavikrds [6]

Answer:

6x+9+2x

Step-by-step explanation:

8x+9

hope it helps uh

7 0

3 years ago

Read 2 more answers

An observer, whose eyes are 1.98 m above the ground, is standing 39.2 m away from a tree. The ground is level, and the tree is g

lozanna [386]

Answer:

The tree is 16.25 m tall.

Step-by-step explanation:

Attached is a diagram that better explains the problem.

From the diagram we see that the distance between the top of the tree and the line of sight of the observer is x.

To find the height of the tree, we need to first find x and then add it to the height of the observers line of sight from the ground.

Using SOHCAHTOA trigonometric function:

tan(20) = x/39.2

=> x = 39.2 * tan(20)

x = 39.2 * 0.364

x = 14.27m

Hence, the height of the tree is:

(14.27 + 1.98)m

16.25m

The tree is 16.25 m tall.

5 0

3 years ago