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
lozanna [386]
2 years ago
6

Soha”s mother is 12 years more than twice Soha”s age. After 8 years,she will be 20 years less than three times Soha’s age .Find

their present ages.​
Mathematics
1 answer:
Soloha48 [4]2 years ago
8 0

Step-by-step explanation:

sofia mother-- 12+2a

sofia-- 2a

after 8years

sofia mother (2a×3) - 20

sofia 2a+8

solution

(2a×3) - 20) + 2a = (12+2a) + (2a+8)

(6a-20) + 2a = 12+2a+2a+8

6a-20+2a = 4a + 20

8a-20= 4a+20

collect like terms

8a-4a= 20+20

4a=40

divide both side by 4

a= 10

present age

sofia mother= 12+2a

12+2(10)

=12+20

= 32

sofia age= 2a

= 2(10)

= 20

Sofia mother present age is 32

sofia present age is 20

You might be interested in
2. How many 4-digit even numbers greater then 4,999 can be made(using the digits 0-9?
Lostsunrise [7]

Answer:

For each choice of the first two digits you have 10 choices for the third digit. Thus you have 10x10x10 = 1000 choices for the first three digits. Finally you have 10 choices for the fourth digit and thus there are 10x10x10x10 = 10 000 possible 4 digit combinations from 0-9.

I hope that helps! :)

3 0
3 years ago
In Circle F, determine the value(s) of x.
patriot [66]

Answer:

since inscribed angle is half of the central angle

x²+22=2(x²+3)

x²+22=2x²+6

22-6=2x²-x²

16=x²

x=√16=±4

determine the value(s) of x=±4

3 0
3 years ago
the dimensions of a rectangular prism are 2m, 6m, Xm Its volume is "192m3." Find the measure of the other dimension
nikdorinn [45]

Answer:

16 m

Step-by-step explanation:

volume =l*w*h

6*2*X=192

X=192/12=16 m

7 0
3 years ago
What is the exact value of sin(345degree)?
stich3 [128]

Answer:

Step by-step explanation:

cos(90-345)

cos(-255)

I know it doesnt  match exactly, but it should give you what you need in toder to get the right answer. Hope this helps!    

4 0
3 years ago
 Plz help  me answer this math question.Trevor has 12 2/5 acres to plant vegetables. He uses 1/5 of the acres for corn and 1/3
denis23 [38]
You would do 1/5 × 12 2/5 = Acres of Corn
Then you do 1/3 × 12 2/5 = Acres of Tomatoes
5 0
4 years ago
Other questions:
  • A square hamburger is centered on a circular bun. Both the bun and the burger have an area of 16 square inches. How far, to the
    7·1 answer
  • How to solve this problem
    15·1 answer
  • Here is a quote from an NPR news article: "On average, working-age adults were eating about 78 fewer calories per day in 2010, c
    7·1 answer
  • Mikayla has $32 in her piggy bank. Her sister, Jessica, has $21. Mikayla earns $10 a week by doing chores for her grandparents,
    15·1 answer
  • See the attached image.
    14·2 answers
  • the statement below describes a situation in which opposite quantities combine to make 0. is the statement true or false? the te
    14·2 answers
  • A sporting goods store sold 2.5 times as many footballs as basketballs last year. Which statement is true?
    7·2 answers
  • Pleaseeeeeeee helpppp-----------
    12·1 answer
  • An architect is designing square windows with an area
    15·1 answer
  • El número de llegadas al servicio de urgencias de un hospital es de 2 cada 15 min. Si se supone que
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!