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
spin [16.1K]
3 years ago
7

Jada, Lin, and Elena are saving money for a trip. Together they saved $120. Jada saved $20 less than Lin. Lin saved 3 times as m

uch money as Elena. How much money did each of them save?
Mathematics
1 answer:
defon3 years ago
6 0

Step-by-step explanation:

This is a word problem that we must translate to mathematical expression before we can solve.

let the individual saving be the first letters of the names

Jada= J

Lin= L

Elena= E

1. Jada saved $20 less than Lin

    J=L-20

2. Lin saved 3 times as much money as Elena

   L= 3E

3. Hence Elena saved

   E

Together they saved $120.

hence

(L-20)+3E+E= 120

L-20+3E+E= 120

collecting like terms we hav

L+4E=120+20

L+4E= 140

but we know that L= 3E

3E+4E= 140

7E= 140

divide both sides by 7 we have

E= 140/7

E= $20

This means Elena saves $70

also  L= 3E

L= 3*20

L= $60

this means that Lean saved $60

also  J=L-20

J= 60-20

J= $40

This means that Jada saved $40

You might be interested in
Solve for c.<br><br> 36+c=54<br><br> Enter your answer in the box.
kondaur [170]
C will be equal to 18
4 0
3 years ago
Read 2 more answers
Find x using the trig ratios please
Karo-lina-s [1.5K]

Answer:

12.9

Step-by-step explanation:

cos 72 = 4/x

x = 4/cos72

x = 12.9

7 0
2 years ago
Will upvoate all
nalin [4]
I think the answer is going to be a
7 0
3 years ago
Quick! Need the answer
zvonat [6]
Replace the x in the equation with the given value of x and you will find that the 3rd equation is corret.

F(X) = 4(1/2)^X

4(1/2)^-2 = 4 * 4 = 16
6 0
2 years ago
Identify the factors of the quadratic equation below.
baherus [9]

the picture is not available, pls try again

7 0
3 years ago
Other questions:
  • The base of a triangular prism is a right triangle whose legs are 7 cm and 24 cm. The height of the prism is 30 cm. What is the
    10·1 answer
  • What angle measures 3 degree
    7·2 answers
  • 1. A company rents 4 vans at $563 per month for twenty months. what is the actual cost for the vans during this time? Find the e
    11·2 answers
  • Find the area of the following shape. Show all work
    12·1 answer
  • Please help! Write in y=mx+b
    7·1 answer
  • Oigan ayuda mmm... <br>cuánto es 100x800 gracias<br>xd️️​
    10·2 answers
  • two airplane leave an airport at the same time. after one hour airplane a is 315 kilometers away from the airport airplane b is
    8·1 answer
  • Freee pointsssssss :}
    15·2 answers
  • Help .?.??.?.?..??.?.?.?.??.?.?.?.?.?.?,?.?.??
    12·1 answer
  • To all ppl who are good in math, pls answer this I really need ur help...
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!