All categories

3 years ago

Two step equation -9x+0.4=4

Mathematics

2 answers:

N76 [4]3 years ago

7 0

Answer:

x= 0.4

Step-by-step explanation:

-9x+0.4= 4

Subtract to both sides.

-9x+0.4= 4.0

-0.4 -0.4

Divide to both sides.

-9x= 3.6

9 9

x= 0.4

yanalaym [24]3 years ago

4 0

Answer:

-0.4

Step-by-step explanation:

You might be interested in

A rectangle has a perimeter of 36 feet. The length of the mat is twice the width. Write and solve an equation to determine the l

Lorico [155]

❍ Concept :-

⠀

We have been provided with some information regarding a rectangular shaped mat. And on the basis of that information, we will create some assumptions and create and equation and equate it to get our required answer.

⠀

✱ Given Information :-

⠀

A rectangular mat with,

Perimeter = 36 ft.
Length = twice the width

⠀

✱ To Find :-

⠀

The dimensions of the mat
Area of the mat

⠀

✱ Formula Used :-

⠀

$\diamond \: \underline{ \boxed{\begin{array}{cc} \sf1. \: Perimeter_{Rectangle} = 2(l+b) \\ \\ \sf 2. ~Area_{Rectangle} = l\times b \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \end{array}}} \: \star \\$

⠀

✱ Solution :-

⠀

Let the breadth of the mat be x, therefore,

Length = 2x

⠀

Now, according to the question,

⠀

$\sf \hookrightarrow 36 \: = 2(2x + x) \\ \\ \\ \sf \hookrightarrow 6x = 36 \: ft. \: \: \: \: \: \: \: \: \: \\ \\ \\ \sf \hookrightarrow x = \cancel\frac{36}{6} = 6 \: ft. \: \: \\$

Thus,

Length = 2x = 2 x 6 = 12 ft.
Breadth = x = 6 ft.

⠀

Now, we have to find out the area of the mat, thus,

⠀

$\sf \hookrightarrow Area=6 \times 12 \\ \\ \\\sf \hookrightarrow Area=72 \: sq. ~ft. \\ \\$

Thus, the area of the mat is 72 sq. ft.

⠀

$\underline {\rule{221pt}{2.5pt}} \\ \\$

7 0

2 years ago

Which gives the correct values for points A, B, C, and D? PLEASE HELP ASAP!

givi [52]

Hope this helps!

A is-2/5

B is -1/5

C is -4/5

D is -3/5

7 0

3 years ago

Read 2 more answers

Find the x- and y-intercepts 3x+y=5

vlada-n [284]

The x - intercept is $(\frac{5}{3}, 0)$ and y - intercept is (0, 5)

<h3>Solution:</h3>

Given that : 3x + y = 5

To find: x - intercept and y -intercept

The x-intercept is where a line crosses the x-axis, and the y-intercept is the point where the line crosses the y-axis.

To find the x intercept using the equation of the line, plug in 0 for the y variable and solve for x

3x + 0 = 5

3x = 5

$x = \frac{5}{3}$

Therefore the x - intercept is $(\frac{5}{3}, 0)$

To find the y intercept using the equation of the line, plug in 0 for the x variable and solve for y

3(0) + y = 5

y = 5

Therefore y - intercept is (0, 5)

6 0

3 years ago

at the pet fair, Darlene's dog weighed 5 times as much as leah's dog. Together, the dogs weighed 84 pounds. how much did each do

Alex

Let x = Darlene's dog's weightlet y = Leah's dog's weight x = 5yx + y = 84 so, 5y + y = 84, which means 6y = 84 so, y = 84/6 = 14x = 5(14) = 70 Darlene's dog = 70 lbs, Leah's dog = 14 lbs.

4 0

4 years ago

What is the domain of the following parabola?

musickatia [10]

I believe it’s the last option sorry if I’m incorrect

3 0

3 years ago