1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11111nata11111 [884]
3 years ago
10

The tens digit of a two-digit number is five more than the units digit. Seven times the sum of the digits of this number is 3 le

ss than the number itself. Find the number.
Mathematics
2 answers:
snow_tiger [21]3 years ago
7 0

Answer:

The correct answer is 94

Step-by-step explanation:

I am Lyosha [343]3 years ago
3 0

Answer:

43

Step-by-step explanation:

Let

The unit digit = x

The tens digit = y

The number = 10x + y

The tens digit of a two-digit number is five more than the units digit.

y = x + 5

Seven times the sum of the digits of this number is 3 less than the number itself.

7(x + y) = 10x + y - 3

7x + 7y = 10x + y - 3

Find the number.

We substitute x + 5 for y

7x + 7(x + 5) = 10x + (x + 5) - 3

7x + 7x + 35 = 10x + x + 5x - 3

14x + 35 = 11x + 5x - 3

Collect like terms

35 + 3 = 11x + 5x -14x

38 = 16x - 14x

38 = 2x

x = 38/2

x = 19

Solving for y

y = x + 5

y = 19 + 5

y = 24

The number = 19 + 24

= 43

You might be interested in
Find the product of 4x 4 and enter it in the space provided. Notice that a
pochemuha

Answer:

16

Step-by-step explanation:

4+4=8

8+8=16

4 0
3 years ago
Read 2 more answers
If you have the equation, y=2x+10 what’s x if y=24
jolli1 [7]

Answer: x=7

24=2x+10

24-10=14

14=2x

14/2=7

6 0
3 years ago
What is the distance between point A and point B?
artcher [175]

Answer:

I would need to see the grapgh

Step-by-step explanation:

4 0
3 years ago
Help ! Please !!!!!!!!!!!!!!
Ostrovityanka [42]

Answer:

12a^6b^3 you multiply 4 and 3 to get 12,then you factor out the algebra with the common terms.

4 0
3 years ago
Construct an equilateral triangle of side 7cm and construct circumcircle.
zalisa [80]

Answer:

To do this, all you need is to draw triangle with each side being 7 cm, and a circle that intersects all three of its corners.

Step-by-step explanation:

  1. With a ruler and a pencil, draw a 7cm line.
  2. With a compass set to a radius of 7cm draw an arc centered around the right end of the line.
  3. With the same compass, still at 7cm, draw an arc centered around the left end of the line.
  4. These two arcs will intersect on either side of the line (you only need one side, so you only need a small arc in the right place, roughly where you think the third point if the triangle is.
  5. Where those arcs intersect is the third point on your triangle.  Mark that, and then trace two lines from that point to either end of the line segment you started with.

<em>You now have an equilateral triangle with 7cm sides.  Next you need to draw the circle</em>

  1. Measure the halfway point on two of your three lines.
  2. Draw a line from that each of those halfway points to the opposite corner. The new lines you're drawing will be perpendicular to the edge your measuring against.
  3. You have now drawn two line segments, and they intersect in the center of the circle.  Now take your compass and set its radius to the distance from that center point to one of the three corner points.
  4. Centered on that middle point, trace a circle with the selected radius.

And you're done!

6 0
3 years ago
Other questions:
  • The coordinates of the vertices of a polygon are shown below. D(–4, 5), E(–1, 5), F(1, 2), and G(–1, –1) What type of polygon is
    13·1 answer
  • Which would not be a step in solving 3x + 1 + 2x = 2+ 4x?
    5·1 answer
  • 7. What is the surface area of the sphere?
    7·1 answer
  • Jamal is 167 cm tall. which expression finds jamal's height in dekameters
    13·2 answers
  • Which problem can be solved using the equation below?<br> 36 : 4=
    8·1 answer
  • In the right triangle shown, m B<br> с<br> 12<br> 45<br> A<br> How long is BC?
    10·1 answer
  • A circle has a diameter
    10·1 answer
  • The volume of a pyramid is 47m3. The height of the pyramid is 6 meters. What is the area of its base?
    13·2 answers
  • What is the value of x in the equation (5x+3)?
    14·1 answer
  • WHATS IS THE HEIGHT OF THE FLAGPOLE?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!