All categories

3 years ago

0.5×- 1.2 =0.4× + 3.3

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

3 0

Answer:

0.02

Step-by-step explanation:

0.5 x - 1.2 = 0.4x + 3.3

0.1x = 4.5

x = 0.02

Hope that helps!

You might be interested in

The menu price of a sandwich at a restaurant is $6. The purchase is subject to a 5% food tax, and you would like to leave a tip

Shtirlitz [24]

Answer:

1. 0.30

2. 1.20

3. 7.50

Step-by-step explanation:

1. 0.30

2. 1.20

3. 7.50

6 0

2 years ago

Read 2 more answers

40 point question ....... pls urgent

olganol [36]

The area swept by the minute hand in 12 minutes is 181.58 cm²

Step-by-step explanation:

In the circle clock

The circumference of the circle is divided into 12 equal arcs
The central angle of each arc is 30°, because the measure of the circle is 360° and divided by 12
The central angle between each two consecutive hours is 30°
There are 5 minutes between each two consecutive hours, then the central angle between each two consecutive minutes is 6° because 30° ÷ 5 = 6°
When the minute hand is moved than the radius of the circle is the length of the minute hand
When the hour hand is moved than the radius of the circle is the length of the hour hand

∵ The minute hand is swept by 12 minutes

∵ The central angle between each two consecutive minutes = 6°

∴ The central angle when the minute hand swept 12 minutes =

6 × 12 = 72°

∵ The area of a sector of a circle = $\frac{x}{360}*\pi r^{2}$ ,

where r is the radius of the circle and x is the central angle of

the sector

∵ The radius of the circle is the length of the minute hand

∵ The minute hand in a clock is 17 cm long

∴ r = 17 cm

∵ The measure of the central angle is 72°

∴ x = 72°

- Substitute these values in the rule of the area of a sector

∵ Area = $\frac{72}{360}*\pi (17)^{2}$

∴ Area = 181.58 cm²

The area swept by the minute hand in 12 minutes is 181.58 cm²

Learn more:

You can learn more about the area of the sector in brainly.com/question/3456442

#LearnwithBrainly

3 0

3 years ago

Approximately how many times greater is 8.5×108 than 3.4×105 ? A 2.5 B 250 C 2,500 D 25,000

Vlada [557]

Solution:

we have been asked to find that , how many times one number is to the other given numbers.

To do this we will divide the larger number by the smaller number and the resulting number will be the answer of the question.

Here the larger number is $8.5\times10^8$

The smaller number is $3.4\times 10^5$

Now lets divide as follows

$\frac{8.5\times10^8}{3.4\times 10^5} =\frac{8.5}{3.4}\times 10^{8-5}\\ \\\frac{8.5\times10^8}{3.4\times 10^5} =2.5\times10^3=2500$

Hence the correct option is C.

3 0

3 years ago

Read 2 more answers

Are angles OBC and ODC equivalent?

Olenka [21]

yeah, they probably are because 360-130-50=180 and both of the angles look like they could be 90 degrees

4 0

3 years ago

MATH HELP

elena-s [515]

The equation of line perpendicular to given line is:

$y = \frac{2}{3}x-1$

Step-by-step explanation:

Given equation is:

$3x+2y = -8$

First of all, we have to find the slope of the given line

So,

$3x+2y = -8\\2y = -3x-8\\$

Dividing both sides by 2

$\frac{2y}{2} = \frac{-3x-8}{2}\\y = \frac{-3x}{2} - \frac{8}{2}\\y =-\frac{3}{2}x-4$

As the equation is in slope-intercept form, the co-efficient of x will be the slope of the line

$m_1 = -\frac{3}{2}$

As we know that product of slopes of two perpendicular lines is -1

Let m-2 be the slope of line perpendicular to given line

$m_1.m_2 = -1\\-\frac{3}{2} . m_2 = -1\\m_2 = -1 * -\frac{2}{3}\\m_2 = \frac{2}{3}$

Slope-intercept form is:

$y = m_2x+b$

putting the value of the slope

$y = \frac{2}{3}x+b$

Putting the point (3,1) in the equation

$1 = \frac{2}{3}(3) +b\\1 = 2 + b\\b = 1-2\\b = -1$

Putting the value of b

$y = \frac{2}{3}x-1$

Hence,

The equation of line perpendicular to given line is:

$y = \frac{2}{3}x-1$

Keywords: Slope-intercept form, slope

Learn more about equation of line at:

#LearnwithBrainly

8 0

3 years ago

0.5×- 1.2 =0.4× + 3.3​

0.5×- 1.2 =0.4× + 3.3