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
Neporo4naja [7]
2 years ago
6

Find b and s. At The present time Mrs. B's age is six years more than four times her sons age. Three years ago she was seven tim

es as old as her son was then
Mathematics
1 answer:
padilas [110]2 years ago
6 0

Answer:

Mrs. B's age = y = 38 years

her son's age = x = 8 years

Step-by-step explanation:

To Find:

Mrs. B's age = y =?

her son's age = x = ?

Solution:

Let Mrs. B's age  be 'y' years

and her son's age be 'x' years

Three years ago Mrs B's will be (y - 3) and her son's age will be (x - 3)

According to the first given condition,

y = 6 + 4x ...............Equation ( 1 )

According to the second given condition,

(y - 3 ) = 7 (x - 3 )..........Equation ( 2 )

equating equation 1 in equation 2 we get

6 + 4x -3 = 7x - 21

7x - 4x = 21 + 3

∴ 3x=24\\\therefore x =\frac{24}{3} \\\\\therefore x =8\ years

Now substitute x in equation 1 we get

y = 6 + 4×8

y = 6 + 32

∴ y = 38 years

Mrs. B's age = y = 38 years

her son's age = x = 8 years

You might be interested in
Anyone free to help??
Vera_Pavlovna [14]

Answer:

(1,-2)

Step-by-step explanation:

w = ( x , y ) = ( 1 , -2 )

3rd choice

7 0
3 years ago
A system of equations is given below:
My name is Ann [436]
Solving by substitution:

y = 4x - 3 

2x + 7y = 41

Let us substitute the first equation y = 4x - 3  into the second.

2x + 7y = 41

2x + 7(y = 4x -3) = 41

2x + 7(4x -3) = 41

So that's the third option.

I hope this helps.
4 0
3 years ago
Read 2 more answers
A rectangle flower bed is 9 feet wide and 12 feet long .what is the length of the diagonal?​
BigorU [14]

Answer:

15 feet

Step-by-step explanation:

The question talks about;

  • A rectangular flower bed whose dimensions are 12 ft by 9 ft

We are required to determine the length of the diagonal

To answer the question, we need to know the following;

  • All the angles in a rectangle are right angles
  • A diagonal divides a rectangle into two right-angled triangles
  • The dimensions of the rectangle acts as the legs of right angled triangle.

Therefore;

Using Pythagoras theorem;

a² + b² = c²

Where, c is the hypotenuse (in this case the diagonal)

a and b are the shorter sides of the right-angled triangle

Therefore;

c² = 12² + 9²

c² = 144 + 81

   = 225

c = √225

  = 15

Therefore, the length of the diagonal is 15 feet

5 0
3 years ago
A(n) ______ shows relationships between things you are comparing.
Klio2033 [76]
Equation showing relationships between things you are conparing. An equals sign represents the two expeessions are equal
6 0
3 years ago
find the coordinates of the vertices of the triangle after a reflection across the parallel lines; first across the line x= -2 a
Kamila [148]

Answer:

C.

Step-by-step explanation:

that the coordinates of the vertices of the triangle after a reflection across the parallel lines .

8 0
3 years ago
Other questions:
  • Timelimit: 15 minutes. 11:08 remaining, x A radio tower is located 250 feet from a building. From a window in the building, a pe
    9·1 answer
  • The average speed of one team in a relay is about 5 miles per hour what is this speed in feet per second round to the nearest te
    14·1 answer
  • JOe goes to the gym to run and swim. When running he burns 35
    12·1 answer
  • 34 POINTS HELP CAN YOU HELP ME SOVLE AND SHOW HOW YOU DID IT?
    5·1 answer
  • What is the volume of this rectangular prism?
    11·2 answers
  • Explain your answer, please
    14·2 answers
  • 2. Amanda is reading a 208 page novel for her English
    13·1 answer
  • Do not answer if you do not have right answer warning!
    7·1 answer
  • Solve for x. PLZZZzzzz
    7·1 answer
  • A baseball team won 8 games and lost 6. If the team continues at this ratio, how many wins will the team have after playing 21 g
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!