All categories

2 years ago

Answer if u want 10 points

Mathematics

1 answer:

ale4655 [162]2 years ago

8 0

Answer:

Option C

Step-by-step explanation:

Substitute the variable with the given number:

x = 5

4*5*2 + 12 - 10*5

40 + 12 - 50

52 - 50

= 2

So, the answer would be option C. :)

You might be interested in

How many solutions does 3 - 2x = 5 - x + 3 + 4x have?

vitfil [10]

Well let's see.

$3-2x=5-x+3+4x \\3-2x=8+3x \\-5x=5 \\x=-1 \\$

The equation has exactly one solution.

Hope this helps.

5 0

2 years ago

HELP ASAP ! NO GUESSING, I BEG YOU. // 5(4x + 2) ÷ 7y

Mrrafil [7]

Hope this photo helps

6 0

2 years ago

Read 2 more answers

WILL GIVE BRAINLIEST

Kaylis [27]

Answer:

7x+80

Step-by-step explanation:

7 times everything in the () and get

56+7x+24

combine like terms

7x+80

3 0

2 years ago

Read 2 more answers

the scale map says that 10cm represents 2km what distance on the map in centimeters represent an actual distance of 15 kilometer

Leno4ka [110]

Answer:

75cm

Step-by-step explanation:

Well, I can't see a photo, so I'll have to assume that the description provides enough info.

10cm/2km = x/15km,

where x is the distance on the map (in centimeters) of a real-life distance of 15 kilometers.

10cm/2km = x/15km

10/2 = 5/1

This means we have to multiply 5 by 15 to find x.

x = 5 · 15

x = 75

Let's plug the new value back in...

10cm/2km = x/15km

10cm/2km = (75cm)/15km

(Simplify each side to its simplest form)

10cm/2km = 75cm/15km

5/1 = 5/1

It works! So x = 75cm.

Hope this helps! :)

8 0

3 years ago

What is the inverse function of f(x)=2x-1

Goshia [24]

Step-by-step explanation:

Given

f(x) = 2x - 1

f^-1 (x) = ?

Now

Let y = f(x)

or y = 2x - 1

Interchanging the role of x and y

x = 2y - 1

x + 1 = 2y

y = x + 1

Therefore f^-1(x) = x + 1

Hope it will help you :)

8 0

3 years ago