3 years ago

0.4x-0.8(x-4) =1.3x - 1.9how do I solve it?

Mathematics

1 answer:

Oxana [17]3 years ago

7 0

Answer:

x = 3

Step-by-step explanation:

First, multiply all four terms by 10 to eliminate the fractions:

4x - 8(x-4) = 13x - 19

Next, carry out the indicated multiplication, obtaining:

4x - 8x + 32 = 13x - 19

Combining the x terms, we get:

-4x + 32 = 13x - 19, or

32 = 17x - 19

Combining the constants, we get 51 = 17x, and so x = 51/17 = 3.

You might be interested in

Which table represents a function?

yawa3891 [41]

B represents a function ✔️

7 0

2 years ago

Calculate the value of 18(-3)

Anon25 [30]

Answer:

-54

Step-by-step explanation:

4 0

3 years ago

What is the difference between x-axis and the y-axis?

Marrrta [24]

The y- axis goes up and down.
and......
The x- axis goes from left right.

7 0

3 years ago

Read 2 more answers

Hello,

oksano4ka [1.4K]

It took him 9.92 hours to complete the journey.

Step-by-step explanation:

Given,

Distance traveled = 50 miles

Distance traveled on horse = $\frac{50}{2}=25\ miles$

Distance traveled on foot = 25 miles

Speed while riding = 9 miles per hour

Distance = Speed * Time

Time while riding = $\frac{Distance}{Speed}$

Time while riding = $\frac{25}{9}=2.78\ hours$

Speed while waling = 3.5 miles

Time = $\frac{25}{3.5}=7.14\ hours$

Total time = 2.78+7.14 = 9.92 hours

It took him 9.92 hours to complete the journey.

Keywords: speed, distance

Learn more about distance at:

#LearnwithBrainly

7 0

3 years ago

A plot of land is in the shape of a triangle. If one side is X meters, a second side Is (5x-2) meters and a third side is (7x-4)

lukranit [14]

Perimeter = x + 5x - 2 + 7x - 4

= 13x - 6 meters answer

6 0

3 years ago

Read 2 more answers

0.4x-0.8(x-4) =1.3x - 1.9how do I solve it?​

0.4x-0.8(x-4) =1.3x - 1.9how do I solve it?