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
Alisiya [41]
3 years ago
6

Mary is 3 years older than Sarah.winifred is twice as old as Mary. Altogether thei ages total 89. How old is Sarah

Mathematics
1 answer:
maria [59]3 years ago
7 0

Answer:

sarah is 20 years old

Step-by-step explanation:

We will represent Mary as m, Sarah as s and wilfred as W

so m= s+3, w= 2m

and s + w + m = 89

substitute m for s+3

so

w=2s + 6 and

2s+3+w=89

substitute w for 2s+6

2s + 3 +2s+6=89

4s+9=89

4s= 80

s=20

You might be interested in
A construction company requires 25,400 bricks
maks197457 [2]
25,908 bricks must be ordered
8 0
3 years ago
Please help question in the picture
anzhelika [568]

Answer:

50

Step-by-step explanation:

40 squared is 1600

30 squared is 900

1600+900=2500

\sqrt{2500} =50

6 0
3 years ago
Wilma is twice as old as Jamal, and Jamal is 3 years older than Tim. The sum of all their ages is 17.
oee [108]
<span>If x = Jamal's age , 2x = Wilma's age , x - 3 = Tim's age.
The sum of the ages is 17. 
Jamal's age is 5
Wilma's age is 10
Tim's age is 2

Hope this helps!</span>
4 0
3 years ago
PLEASE HELP will mark Brainliest if correct​
posledela

Answer:

C

Step-by-step explanation:

you you add three dollars and 25 cents plus $1 + 15 cents which is $4.40 and then times 20 will get you $88

5 0
3 years ago
what is the curvature of my B I G Bal ls are they are stroking your face while you su ck my a n us? What is 5 times 5?
salantis [7]
<span>Often the university sites exist primarily for internal use, listing equipment and demos available to physics professors teaching large sections of introductory courses. They usually give lists of required equipment, they don't always give much information about setup, effective presentation and explanation of the physics.</span>
7 0
3 years ago
Other questions:
  • Nia wants the total weight of her luggage to be no more than 50 kilograms. She has
    12·2 answers
  • Solve for r what is the answer
    13·1 answer
  • HUrRiCAn KatrINa?? MORe liKE?
    10·1 answer
  • There can be more then one answer
    5·1 answer
  • What is 888 + 48 ? pleaaaase
    12·2 answers
  • Pls helppp I’ll mark u brainliest
    8·1 answer
  • How is the product of 2 and 5 shown on a number line?
    13·1 answer
  • Which situation is a true statement about payment options?
    5·2 answers
  • 2 more!! Enjoy the points!
    14·2 answers
  • A triangle has vertices at (2, 3), (-4, 5), and (-3, 4). What are the coordinates of the vertices
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!