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
GalinKa [24]
3 years ago
11

Brainliest and points !! ANSWER ASAP !!

Mathematics
1 answer:
Igoryamba3 years ago
5 0

Answer:

Step-by-step explanation:

The sum of the ages of a Mother and her son is 78 , three years ago the mother is five times as old as the son, what is their present ages?

To solve this , let the age of the mother be x and the age of the son be y , from the first statement :

x + y = 78

Three years ago , the mother will be x- 3 and the son will be y - 3 , from the second statement:

x - 3 = 5 ( y-3)

x- 3 = 5y - 15

x - 5y = -12

The resulting equations are

x + y = 78

x - 5y = -12

This is called a simultaneous linear equation , that means it is a linear equation.

The side of a square is xcm , if the difference between the area and the perimeter is 12 , find the legth of its side.

Interpretation:

The formula for the area of a square is l^{2} and the perimeter is 4l , from the question , we have

x^{2} - 4x = 12

This is not a linear equation , it is simply a quadratic equation , so the situation is non linear

You might be interested in
For questions 10-11 if l || m, find the values of x and y.
klemol [59]

Answer:

10) 9x - 2° = 5x + 54° (corresponding angles are equal)

9x - 5x = 54 + 2

4x = 56

x = 56/4

x = 14°

10y + 6° = 9x - 2° (linear pair)

10y + 6° = 9(14)° - 2°

10y + 6° = 126° - 2°

10y + 6° = 124°

10y = 124° - 6°

10y = 118

y = 118/10

Sorry, i don't know how to do the 11th question

but hope this helps you!

8 0
2 years ago
Given that the restaurant is located in a city with a population over 500,000, what is the probability that it is in the northea
xxMikexx [17]
Your question seems incomplete
is there an image supposed to be attached to it
5 0
3 years ago
Given six memory partitions of 300 kb, 600 kb, 350 kb, 200 kb, 750 kb, and 125 kb (in order, how would the first-fit, best-fit,
NNADVOKAT [17]

Answer:

Step-by-step explanation:

first fit:

115 -> 300

500-> 600

358 -> 750

200 -> 350

375 -> not able to allocate  

Best fit:

115 -> 125

500 -> 600

358 -> 750

200 -> 200

375 -> not able to allocate

worst fit:

115 -> 750

500 -> 600

358 -> not able to allocate

200 -> 350

375 -> not able to allocate

6 0
3 years ago
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
Yakvenalex [24]

Answer:

The surface area of ball is 400π sq.cm

6 0
2 years ago
R(x)=2√x s(x)=√x (r/s)(3)
anygoal [31]
This is a trick question. First just understand that any number over itself is 1 so \frac{2 \sqrt{x} }{\sqrt{x}} is just 2 *  \frac{ \sqrt{x} }{ \sqrt{x}} = 2 so it is just 2
5 0
3 years ago
Read 2 more answers
Other questions:
  • A rectangle has an area of k2+19k+60 square inches. If the value of k and the dimensions of the rectangle are all natural number
    13·1 answer
  • What is the solution of this system of equations?<br><br>y = 3x + 5<br>y = -x + 3​
    11·1 answer
  • James has just sold his motorbike for £1,890. He bought the motorbike for £2,700. 
    7·1 answer
  • Is this function one-to-one? Explain how you determine your answer
    14·1 answer
  • What percent of $x$ is equal to $40\%$ of $50\%$ of $x$?
    8·1 answer
  • Plz help I will give you BRAINLIESt 5stars
    10·1 answer
  • What is the equation of the line that passes through the point (6,-1) and has a slope of 1?
    13·1 answer
  • Help!! timed! find the domain and range pls!​
    14·1 answer
  • Round 564,938 to the nearest 1000 is it 565000
    13·1 answer
  • Explain how you can use multiplication to show that two fourths and four eighths are equivalent.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!