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
scZoUnD [109]
3 years ago
10

3. Adrian is 8 years older than his brother, Jose. In 3 years he will be twice as old as his brother. Find the present age of ea

ch.​
Mathematics
1 answer:
mart [117]3 years ago
5 0

Answer:

Age of Jose =  5 years

Age of Adrian = 13 years

Step-by-step explanation:

Let:

Age of Jose = x

Age of Adrian = x+8

After 3 years

Age of Jose = x+3

Age of Adrian = x+8+3 = x+11

Now, we are given, in 3 years he will be twice as old as his brother.

So, we can write

Age of Adrian = 2 (Age of Jose)

x+11 = 2(x+3)

x+11=2x+6

2x-x=11-6

x=5

So, we get value of x = 5

Now, the present ages will be:

Age of Jose = x = 5 years

Age of Adrian = x+8 = 5+8 = 13 years

You might be interested in
(n 4 - 2n 3 - 3n 2 + 7n - 2) ÷ (n - 2)
GrogVix [38]
I believe it's 

- 1 - \frac{4}{n - 2}

Hope I helped! ( Smiles )
7 0
3 years ago
Read 2 more answers
Help Please . its due in 5 hours and i cant find answers
dolphi86 [110]

Answer:

39 pi cubic inches

Step-by-step explanation:

The volume of a cone is (1/3)(area of the base)(height).

V=\frac{1}{3}Bh

Find the area of the circular base.  The circumference of a circle is C=2\pi r, so

2\pi r = 6\pi\\\\r=3

Now that you know the radius of the circular base, you can find its area:

A=\pi r^2 = \pi(3^2)=9\pi

The height of the cone is 13.  Time to use the volume formula.

V=\frac{1}{3}Bh\\\\V=\frac{1}{3}(9\pi)(13)\\\\V=39\pi

6 0
3 years ago
Solve this using substitution:<br> 5x-y=-3<br> 6x+y=3
Marta_Voda [28]

Answer:

x=0.y=3

Step-by-step explanation:

5x-y=-3

y=5x+3

sub y=5x+3 into 6x+y=3,

6x+5x+3=3

11x=0

x=0

6(0)+y=3

y=3

3 0
3 years ago
Read 2 more answers
I really need help with this!!!
netineya [11]
2 because is isisisisisisisisis
5 0
3 years ago
a patient is to take 4 1/4 tablespoons of medication per day in 4 equally divided doses. how much medicine is to be taken in eac
inysia [295]
\frac{4\frac{1}{4}}{4}\\\frac{\frac{17}{14}}{4}\\\frac{17}{16}\\1\frac{1}{16}

1 1/16 tablespoons per dose.
5 0
3 years ago
Other questions:
  • Quotient of 845 divided by 27
    14·2 answers
  • Jessica spent $36.07 and Ben spent $7.79 at the grocery store. Which is the best estimate of how much Jessica and Ben spent toge
    12·2 answers
  • a kennel owner has 270 feet of fencing material to be used to divide a rectangular are into 10 equal pens. Find the dimensions t
    14·1 answer
  • Solve the inequality <br> -40 &gt; -10k
    13·1 answer
  • 8y = 4x - 1 <br> Find the x and y intercepts of the line
    12·1 answer
  • there are 150 students in the marching band, and 30 of them play the trumpet. Which number line represents the percent of the sr
    6·1 answer
  • PLZZ ANSWER FAST!!<br>Rewrite with a positive exponent.<br><br>x−4
    6·1 answer
  • What is the total area of the garden?
    6·2 answers
  • It cost 13.80 for 5 tickets how much would it cost for 3 tickets
    8·1 answer
  • 5. You want to have a pizza party this weekend for some friends and family. You have $48
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!