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
blagie [28]
3 years ago
5

Currently, I am $9$ times as old as my son. Next year, I will be $7$ times as old as my son. How old is my son now?

Mathematics
2 answers:
grandymaker [24]3 years ago
6 0

Answer:

He is 3 years old.

Step-by-step explanation:

3 times 9 is 27. She is 9 times older than her 3 year old son.

Next year he will be 4 and she will be 28. 4 times 7 is 28. She will be 7 times older than her son.

notsponge [240]3 years ago
6 0

Answer:

The son is 3 years now.

Step-by-step explanation:

Let x and y represent his age and his son's age respectively.

Given;

I am $9$ times as old as my son

9y = x ........1

Next year, I will be $7$ times as old as my son.

7(y+1) = x + 1 ....2

Substituting equation 1 to 2;

7(y+1) = 9y + 1

7y + 7 = 9y + 1

Collecting the like terms

9y - 7y = 7 -1

2y = 6

y = 6/2 = 3

Since x = 9y

x = 9(3)

x = 27

The son is 3 years and he is 27 years now.

You might be interested in
What is the diagonal of a solid square. each side is 7.
Delvig [45]

Answer:

9. 89

Step-by-step explanation:

A squared + B squared = C squared

7 squared + 7 squared = 98 squared

Find the square root of 98 (I recommend using a calculator)

You should get 9.89 as an answer.

5 0
3 years ago
What value does the 3 have in 2380
Stels [109]
100s place.  So 3 by 100s is 300.
8 0
3 years ago
Read 2 more answers
I need help on this pleaseee
xz_007 [3.2K]

Answer:

your answer is d, its very similar to c, but its d bc its goes up as a posative, so in that case it will be the (x+6)

Step-by-step explanation:

Hopefully this helped, if not HMU and I will get you a better answer!

5 0
3 years ago
If 4/5=4×1/5then 5/12=
-BARSIC- [3]
Then 5/12=5×1/12

I hope this helped :) 
if not, please leave a comment below


4 0
3 years ago
Each day 1/2 of the money that is in a bank vault is removed. No money is added to the vault. Which of the following models the
Step2247 [10]
This scenario is representing an exponential decay function.

Each time you are removing half, which will be the same as divided by two.

1, 1/2 1/4, 1/8, 1/16. You can see in the denominator the powers being applied. The values are decreasing which is why it is a decay.
6 0
3 years ago
Other questions:
  • I’m really confused on how to do this
    9·1 answer
  • Write .46 as a fraction
    5·2 answers
  • Which of these functions below could be defined by a cubic equation?
    13·2 answers
  • The 60-foot rope was cut into two pieces. One of the pieces was 10 feet longer than 4 times the length of the other piece. How l
    14·1 answer
  • Which Roman numeral less than 100 is written using the greatest number of symbols​
    9·2 answers
  • On Monday, 243 students went on a field trip to the zoo. All 5 buses were filled and 8 students had to ride in a car. How many s
    15·1 answer
  • What is the slope of the line on the graph​
    13·2 answers
  • Hi, can someone help me?​
    11·2 answers
  • The volume of this right trapezoidal prism is 464.75 ft³.
    12·1 answer
  • Which of the following is most likely the next step in the series?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!