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
VLD [36.1K]
3 years ago
15

HELP!! Number 7! I need to know to write the equation and how to solve it! Thank you!

Mathematics
1 answer:
Anon25 [30]3 years ago
4 0

Answer:


Step-by-step explanation:

Move the decimal to the left once on both of them and time the numbers together

You might be interested in
Write 675,000,000 in scientific notation.
Lostsunrise [7]

Answer:

= 6.75 × 10^8

Step-by-step explanation:

7 0
3 years ago
• What is the solution to 5x+ 20 = 7(x+2)?
o-na [289]

For this case we must find the solution of the following equation:

5x + 20 = 7 (x + 2)

Applying distributive property on the right side of the equation we have:

5x + 20 = 7x + 14

Subtracting 7x from both sides of the equation:

5x-7x + 20 = 14\\-2x + 20 = 14

Subtracting 20 from both sides of the equation:

-2x = 14-20

Different signs are subtracted and the major sign is placed.

-2x = -6

Dividing between -2 on both sides of the equation:

x = \frac {-6} {- 2}\\x = 3

Thus, the solution of the equation isx = 3

Answer:

x = 3

6 0
3 years ago
Solve the system of equations using substitution. Show your work<br> y=2x + 3<br> y=3x + 1
FrozenT [24]

Answer:

x=2 and y=7

Step-by-step explanation:

Step: Solvey=2x+3for y:

y=2x+3

Step: Substitute2x+3foryiny=3x+1:

y=3x+1

2x+3=3x+1

2x+3+−3x=3x+1+−3x(Add -3x to both sides)

−x+3=1

−x+3+−3=1+−3(Add -3 to both sides)

−x=−2

−x

−1

=

−2

−1

(Divide both sides by -1)

x=2

Step: Substitute2forxiny=2x+3:

y=2x+3

y=(2)(2)+3

y=7(Simplify both sides of the equation)

3 0
3 years ago
In the following Earliest Start Time (EST) graph, assume each unit of time is an hour.
Dennis_Churaev [7]

In the following Earliest Start Time (EST) graph, assume each unit of time is an hour.

How many hours will it take until Task F can be started?

14 hours

______________________________________

<em> *100% CORRECT ANSWERS </em>

<em>(SEE ATTACHMENTS)</em>

4 0
3 years ago
the midpoint is AB is M(3,-2). One endpoint is A(7,-9). Find the coordinates of the other endpoint B.
cestrela7 [59]

Answer:

<em>The required points of the given line segment  are ( - 1, - 5 ).</em>

Step-by-step explanation:

Given that the line segment AB whose midpoint M is ( 3, -2 ) and point A is ( 7, - 9), then we have to find point B of the line segment AB -

As we know that-

If a line segment AB is with endpoints ( x_{1}, y_{1} ) and  ( x_{2}, y_{2}  )then the mid points M are-  

<em>M = ( \frac{ x_{1} + x_{2} }{2} , \frac{ y_{1} + y_{2}  }{2}  )</em>

Here,

<em>Let A ( 7, - 9 ), B ( x, y ) with midpoint M ( 3, - 2 ) -</em>

then by the midpoint formula M are-

<em>( 3, - 2 )  = ( \frac{ 7 + x}{2} , \frac{ - 9 + y}{2} )</em>

On comparing x coordinate and y coordinate -

We get,

<em>( \frac{ 7 + x}{2} = 3  , \frac{ - 9 + y}{2}  = - 2)</em>

<em>( 7 + x = 6, - 9 + y = - 4 )</em>

<em>( x = 6 - 7, y = - 4 + 9 )</em>

<em>( x = - 1, y = -5 )</em>

<em>Hence the required points  A are ( - 1, - 5 ).</em>

<em>We can also verify by putting these points into Midpoint formula.</em>

<em />

8 0
3 years ago
Other questions:
  • Multiply 3i(−1 + 2i). What is the simplified version written in standard form, a + bi, where a and b are real numbers?
    8·1 answer
  • Kaitlyn wants to buy a T-shirt for $15 and a pair of jeans for $42. She has $58. Which expression will help Kaitlyn find out if
    9·1 answer
  • Which property does the statement illustrate?
    14·1 answer
  • Which pair of angles are vertical angles?
    5·2 answers
  • Solve the equation 5n+7=21
    7·2 answers
  • If swing A is shorter in length than swing B.
    5·1 answer
  • A football player makes 15 catches for 225 yards. what is his average yards per catch
    6·2 answers
  • (a3 - 2a + 5) - (4a3 - 5a2 + a - 2)​
    14·2 answers
  • F(40)=0.015(40)+56.53
    9·1 answer
  • The test scores for a group of his students are shown 60,69,79,80,86,86,86,89,90,100 calculate the five number summary of the da
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!