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
ElenaW [278]
3 years ago
10

Kevin is 3 years older than daniel. Two years ago, Kevin was 4 times as old as Daniel. Let k be Kevin’s age and let d be Daniels

age. What system of equations would represent this situation?
Mathematics
1 answer:
bezimeni [28]3 years ago
8 0

Answer:

Daniel (now) is 3 years old,  (2 years ago) is 1 year old.

Kevin (now) is 6 years old,   (2 years ago) is 4 years old.

Step-by-step explanation:

Now:

-Kevin: k = d + 3

-Daniel: d

2 years ago:

-Kevin: k - 2 = 4(d - 2)

-Daniel: d - 2

We have the equation:

(k - 2) + 2 = k

4(d - 2) + 2 =  d + 3

4d - 8 + 2 = d + 3

3d - 6 = 3

3d = 9

d = 3

k = d + 3 = 3 + 3 = 6

You might be interested in
Is 10/2 a integer ,natural number,rational number,irrational number or a whole number
prohojiy [21]
It is an rational number. A rational number is a number that can be written as a ratio or fraction.
7 0
3 years ago
Read 2 more answers
If 1 box cost rs 45 find the cost of 9 boxes​
jarptica [38.1K]

Answer:

9 boxes cost Rs 405

Step-by-step explanation:

1 box costs 45.

so, how much are 2 boxes ? what do you think ?

right, twice as much : 2 × 45 = 90

how much are 3 boxes ?

now it is three times the cost of 1 box : 3 × 45 = 135

do you see the pattern ?

it is really simple.

that is also the origin why we describe a multiplication by "times". we take a single item so and so many times.

when you see something like this, you know, they are talking about multiplication.

so, here we want to know how much 9 boxes cost.

therefore,

9 × 45 = 405

is the answer.

6 0
2 years ago
Which ordered pair on the graph represents the situation described in part F?
Ray Of Light [21]
I’ll see what I can do just give me a few minutes
4 0
3 years ago
Read 2 more answers
Terry drives 4 hours at 16 miles per hour how far does he travel
pogonyaev

Answer:

4

Step-by-step explanation:

16/4

8 0
2 years ago
Read 2 more answers
A bag contains three white marbles, two black marbles, and five red marbles. Find the probability of picking a black marble.
Sveta_85 [38]
Hope this helps you!

3 0
3 years ago
Other questions:
  • Ryan estimates that he uses 2/3 cup of syrup each time he eats pancakes.How many times will he be able to eat pancakes without r
    13·1 answer
  • Find an equation of the plane. the plane that passes through (9, 0, −1) and contains the line x = 5 − 4t, y = 1 + 5t, z = 4 + 2t
    7·1 answer
  • -57+-89= what is the answers
    15·2 answers
  • What are the steps for doing this in Foil
    8·1 answer
  • Felipe has completed 6 deliveries so far this week. He needs to make 60 deliveries for the week. What percentage of his deliveri
    11·1 answer
  • Factor completely x3 – 8 A) (x – 2)(x2 + 2x + 2) B) (x – 2)(x2 + 2x + 4) C) (x – 2)(x2 + 4x + 4) D) (x – 2)(x2 + 4x + 8)
    14·1 answer
  • Are all perfect cubes also multiples of three?<br> Are all multiples of three also perfect cubes?
    13·2 answers
  • LAST QUESTION PLS HELP idk if you can see it all
    5·2 answers
  • (x+30 degrees) +(45 degrees)
    14·2 answers
  • Please hurry! Marking brainliest!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!