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
bija089 [108]
3 years ago
7

Two years ago a father was four times as old as his son. Three years from now the father will be only three times as old

Mathematics
1 answer:
vampirchik [111]3 years ago
6 0

Answer:

c. 3x + 15

The son is currently 12 years old.

The father is currently 42 years old.

Step-by-step explanation:

x = the son's age 2 years ago

x + 2 = the son's age in the present

x + 5 = the son's age 3 years from now

f = the father's age 2 years ago = 4x

f + 2 = the father's age in the present = 4x + 2

f + 5 = the father's age 3 years from now = 3(x + 5) = 4x + 5

*3(x + 5) when distributed is equivalent to 3x + 15

4x + 5 = 3x + 15

x + 5 = 15

x = 10

This means that:

Present age of the son: (10) + 2 = 12 years old

Present age of the father: 4(10) + 2 = 42 years old

~Hope this Helps!~

You might be interested in
A book store sells a textbook for $150. If the textbook is on sale with 12% off, and there is a sales tax of 8.25% added to the
Yuri [45]

The textbook is $150 originally, so to find the price of the textbook on sale, multiply the original price by 12% (0.12). Then subtract 12% of 150 from 150.

  • 150 * 0.12 = 18

Subtract 18 from 150.

  • 150 - 18 = 132

Multiply the price of the textbook on sale by the sales tax of 8.25% (0.0825). Then add the tax price onto the sale price of the textbook.

  • 132 * 0.0825 = 10.89

Add 10.89 to 132.

  • 132 + 10.89 = 142.89

The final price of the textbook is $142.89.

4 0
3 years ago
What is the exponential function modeled by the following table?
Ierofanga [76]
\bf \begin{array}{ccll}
x&f(x)\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
2&\stackrel{3^2+1}{10}\\
3&\stackrel{3^3+1}{28}\\
4&\stackrel{3^4+1}{82}
\end{array}\implies f(x)=3^x+1
8 0
2 years ago
What is angle 2 equal to
Aleks [24]
60 degrees since it near a isosceles triangle 
7 0
3 years ago
What is the volume of 10 2 in 5.5in
svetlana [45]

Answer:

  110 in³

Step-by-step explanation:

The volume of a rectangular prism is the product of its dimensions:

  V = LWH

  V = (10 in)(2 in)(5.5 in) = 110 in³

5 0
2 years ago
phaedra would like to buy a blouse costing $27, which is $3 more than 4 times the amount of money she has saved so far. how much
Luda [366]
The answer is 3 because 4x6=24 and add 3 is 27 so she will need 3 dollars.
8 0
2 years ago
Read 2 more answers
Other questions:
  • Fiona sorted her cds into separate bins. She placed 4 cds in each bin. If she has 160 ,cds how many bins did she feel
    9·2 answers
  • Matt and Alex are walking home from school one day and Alex says he knows a short cut. Matt says that the normal way they go is
    15·2 answers
  • A concession stand at a sports stadium sells 600 bags of peanuts (each game) if the price of each bag is $4.00. For each $0.25 i
    8·1 answer
  • Convert 54% into a decimal
    8·2 answers
  • Question on Statistics and Confidence Intervals
    13·1 answer
  • I really need help find x in this triangle
    7·1 answer
  • Please sum 1 help mee​
    10·2 answers
  • In y=x+b,what is the slope<br>and how you know​
    11·1 answer
  • Two shops, Lidal and Oldi, sell the same brand of toilet rolls but with different package sizes.
    6·1 answer
  • I need help with this asap, I don’t know how to solve it
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!