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
zlopas [31]
3 years ago
7

A teacher has two students, one two times as old as the other. The teacher is five times as old as the older student, and in 5 y

ears she will be five times as old as her younger student. Find the teacher’s present age.
Mathematics
2 answers:
yuradex [85]3 years ago
8 0

Answer:

40 years

Step-by-step explanation:

kramer3 years ago
6 0
Let's call the younger student's age A and the older student's age B. The teacher's age will be T.

B = 2A
T = 5B
T+5 = 5(A+5)

Simplify the last equation.

T+5 = 5A+25
T = 5A+20

Now we have two equations solved for T, so we can set them equal to each other.

5B = 5A + 20

We can plug 2A in for B

5(2A) = 5A + 20

10A = 5A + 20

5A = 20

A = 4

To find T, we plug 4 in for A in T = 5A + 20

T = 5(4) + 20

T = 40

The answer is 40 years old.


You might be interested in
What kind of sequence has a common ratio
Makovka662 [10]

Answer:

geometric sequence

Step-by-step explanation:

A geometric sequence is a sequence of numbers that is ordered with a specific pattern. Each successive number is the product of the previous number and a constant. The constant is the same for every term in the sequence and is called the common ratio.

6 0
3 years ago
Which functions have graphs that are less steep than the graph of f(x)= -4x^2
LiRa [457]
TTese are all parabolas   whose axis of symmetry  is the y  axis. The negative coefficient means they open downwards and the positive mean they open upwards. The higher the absolute value of the coefficient is the greater the slope, so  2x^2 will be steeper than x^2  and -4x^2 will be steeper than - 2x^2.

So h(x) and j(x)  are the answers.
8 0
3 years ago
In a survey of students about favorite sports, the results include 22 who like
Vera_Pavlovna [14]
1) Venn Diagram is used to organize data
2) Four circles. Three intersection circles, and one which contains other three circles
3) In the intersection area of three circles.
4) In the circle which contains other three circles, but not inside any of the intersecting circles.
8 0
3 years ago
What is the image point of (9,−2) after a translation right 3 units and down 4 units?
-BARSIC- [3]

Answer:

(12,-6)

Step-by-step explanation:

I hope this helps and have a good day.

3 0
3 years ago
Given a possible triangle ABC with a=5, b=11, and A=23 degrees, find a possible value for angle b. Round to the nearest tenth.
Stels [109]
<span>b. Round to the nearest tenth.  please mark brainly</span>
6 0
3 years ago
Other questions:
  • It took Marty 42 minutes to write a book report then he spend 18 minutes correcting his report explain how you use mental math t
    13·2 answers
  • If 3t -7 =5t, then 6t=
    9·1 answer
  • If two angles are supplementary to the same angles, then ?
    6·1 answer
  • Can you please help me I do not know the meaning of these questions
    8·2 answers
  • Help i give crown ples what is the vaule of the underlind 4 <br>0.478
    11·1 answer
  • How do I do this?????
    13·2 answers
  • I need to know these answers! My home work is due in an hour and I don’t know how to do this
    11·1 answer
  • HELP PLEASE!!!!dont answer just for points:(
    11·1 answer
  • Solve the system by graphing:<br> y = x^3 - 4x^2 + x + 3<br> y = 2x - 1
    8·1 answer
  • Which equations for the line of best fit do not accurately represent the data in the scatter plot? Select all that apply.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!