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
Alenkasestr [34]
3 years ago
15

Create a system of equations to solve

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
6 0
R=2K which equals 2R=4K
4(R=K+8) or 4R=4K+32

Subtract first equation from second equation.
2R=32 so R=16

Plug into first equation
16=2K so K=8

Now plug both into second equation to check
4R-4K=4(R-K)=4(8)=32 it works

So Roberto is 16 and Katie is 8
(In 4 years R would be 20 and K would be 12 which has a difference of 8)
You might be interested in
25% of the items were on sale. There were 120 items How many were on sale?
Liono4ka [1.6K]
There were 30 items on sale. Hope this helps and please give Brainliest!
8 0
3 years ago
Read 2 more answers
Jonathan is signing a lease for an apartment that rents for $1240/month.
Leokris [45]
The answer would be $3472

8 0
2 years ago
It is the morning of the sandcastle-building competition at the beach. Dory has been looking forward to this event for months. A
zvonat [6]
One way is by comparing the weather for today as compared to the rest of the week or month.

6 0
3 years ago
Read 2 more answers
What percent of the time was the red line bus late?
Dmitriy789 [7]
8% I am sorry if I am wrong
8 0
3 years ago
What is the measure of XZW?
USPshnik [31]

Answer:

85 degrees

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • In how many ways can I distribute $6$ identical cookies and $6$ identical candies to $4$ children, if each child must receive ex
    12·2 answers
  • -22 over 22 in simplest form
    15·2 answers
  • What is the perimeter of a square
    12·2 answers
  • Yuto and Lian are at train stations 1,880 kilometers apart. Yuto boards a train heading east at an average speed of 220
    6·2 answers
  • Bank Savings Word Problems: Please compute the answe
    10·1 answer
  • An investment of $6,530 earns interest at the rate of 4% and is compounded quarterly. What is the accumulated value of the inves
    10·1 answer
  • Find the gcf of 40 and 48
    13·2 answers
  • Solve the inequality for x. -8x + 16 > -72 A) x < 7 B) x < 11 C) x > 7 D) x > 11
    8·1 answer
  • Is the following a function?
    9·1 answer
  • During his shift at Pennant Sports Shop, Sam compared the items sold during last weekend's sale. There were 25 lacrosse sticks s
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!