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
fredd [130]
3 years ago
7

Age If you add Natalie's age and Fred's age, the result is 40. If you add Fred's age to 4 times

Mathematics
1 answer:
jolli1 [7]3 years ago
5 0

Answer:

Fred is 28 yrs old. Nathalie is 12yrs old

Step-by-step explanation:

Let Nathalie's age be x

Let Fred's age be a

x+a=40 yrs•••••1

4x+a=76yrs•••••2

a=40-x

Substitute a for 40-x in equation (2)

4x+40-x=76

3x=76-40

3x=36

x=12

a=40-12

a=28

You might be interested in
Find the surface area. round to the nearest hundredth when necessary.
Dmitry_Shevchenko [17]

Answer:

The surface area of the cuboid is 648 m^2

Step-by-step explanation:

What we have here is cuboidal in outlook

By using the formula for the surface area of a cuboid, we can get the surface area of the shape

mathematically, we have the surface area of a cuboid as follows;

2(lb + lh + bh)

where l is the length, b is the breadth (width) and h is the height

We can have the length as 9 m, the width as 9 m and the height as 13.5 m

Substituting these values, we have the surface area of the cuboid as;

A = 2(9(9) + 9(13.5) + 9(13.5))

A = 2(81 + 243)

A= 2(324)

A = 648 m^2

8 0
3 years ago
The world population is projected to be 6.7 billion in 2040. At that​ time, there are expected to be approximately 2 billion mor
Charra [1.4K]
\bf \begin{cases}
s=\textit{Asia's population}\\
a=\textit{Africa's population}\\
r=\textit{rest of the world}\\
----------\\
\boxed{s}=a+2\\
\boxed{r}=\frac{s}{2}+0.2
\end{cases}\implies 
\begin{array}{llll}
s+a+r=6.7\\\\
\boxed{a+2}+a+\boxed{\cfrac{s}{2}+0.2}=6.7\\\\
a+2+a+\cfrac{\boxed{a+2}}{2}+0.2=6.7
\end{array}

solve for "a", to see what Africa's population will then be
5 0
4 years ago
Rose picked 18 tulips and 20 lilies.She divided the flowers into groups so that the same number of tulips and lilies were in eac
RSB [31]

Anwser: 18=9 groups  and 20= 10 groups

5 0
3 years ago
Read 2 more answers
How many secare in 35 min?
Wewaii [24]
60 seconds are in each minute. To find the number of seconds in 35 minutes, you multiply 60 (seconds) by 35 (minutes.)  The answer is 2,100 seconds. 
8 0
4 years ago
May someone please help me with this :)
adoni [48]

Answer:

24

Step-by-step explanation:

6+8=14 14+10=24

4 0
3 years ago
Other questions:
  • A line passes through the point (–2, 7) and has a slope of –5. What is the value of a if the point (a, 2) is also on the line?
    9·2 answers
  • Please help me with these questions (It’s due tomorrow)
    5·1 answer
  • A number cube is rolled two times. What is the probability that the sum of two numbers will be 9?
    8·1 answer
  • 19. What is the equation of the line in slope-intercept form that passes through the point (24,9) and 1/8
    10·1 answer
  • Help please!!!!!!!!!!!!!!!! Asap
    9·1 answer
  • If f(x) = x2, find the inverse of f.
    12·2 answers
  • What is the common difference between the terms in this arithmetic sequence?
    8·1 answer
  • ¿En que orden se deben escribir las funciones, para aplicar la integral definida cuando se desea calcular el área?
    13·1 answer
  • PLEASE HELP!!!!! 20 POINTS FOR ANSWER!!!
    10·1 answer
  • Find the measure angle measure.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!