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
madam [21]
4 years ago
6

Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel.

Mathematics
2 answers:
adelina 88 [10]4 years ago
8 0

Answer: B.  k=d+3

              k-2=4(d-2)

Step-by-step explanation:

Let k be Kevin’s age and let d be Daniel’s age.

Given : Kevin is 3 years older than Daniel.

i.e. k=d+3

Kevin's age two years ago= k-2

Two years ago, Kevin was 4 times as old as Daniel.

i.e. k-2=4(d-2)

Hence, the system of equations represents this situation :

k=d+3

k-2=4(d-2)

goldfiish [28.3K]4 years ago
6 0

Answer:

B is the correct answer

Kevin is K

Daniel is D

Now: K

K = D + 3

3 years ago:

K - 2 = 4(d - 2)

<h2>YOURE WELCOME, PLEASE MARK AS BRAINLIEST AND FOLLOW ME ❤️❤️</h2>

You might be interested in
Point C is on line segment \overline{BD} BD . Given BC=x+4,BC=x+4, CD=5x,CD=5x, and BD=5x+7,BD=5x+7, determine the numerical len
aleksandrvk [35]

Answer:

CD = 15

Step-by-step explanation:

Given

BC = x + 4

CD = 5x

BD = 5x + 7

Required

Determine CD

Since Point C is on segment BD, then we have

BD = BC + CD

Substitute x + 4 for BC; 5x for CD and 5x + 7 for BD

5x + 7 = x + 4 + 5x

Collect Like Terms

5x - 5x - x = 4 - 7

- x = -3

Multiply both sides by -1

x = 3

Substitute 3 for x in CD = 5x

CD = 5(3)

CD = 15

<em>Hence, the length of CD is 15 units</em>

6 0
3 years ago
Read 2 more answers
Which number can each term of the equation be multiplied by to eliminate the fractions before solving-3/4m-1/2=2+1/4m
densk [106]
<h2>Hello!</h2>

The answer is: 4

<h2>Why?</h2>

The smallest whole number we can use to multiply each term in order to eliminate the fractions is 4:

Multiplying each side of the equation by 4, we have:

Multiplying each side of the equation by 4, we have:

(\frac{-3m}{4}-\frac{1}{2})*4=(2+\frac{1}{4})*4\\\\\frac{-12m}{4} - \frac{4}{2} = 8+\frac{4m}{4}\\-3m-2=8+m\\-8-2=m+3m\\4m=-10\\m=\frac{-10}{4}=\frac{-5}{2}\\\\m=\frac{-5}{2}

Have a nice day!

8 0
3 years ago
Read 2 more answers
I know I haven't been on this app for a long time but can ya'll help me
kramer

Answer:

2774

Step-by-step explanation:

start by multiplying 2 by 7, the answer is 14 put the 1 above the 8 in 1387 then put the 4 under the equation, similar to addition. repeat but next time when you multiply 2 by 8 add the 1 (from the previous multiplication) to the answer under and put the 1 from 17 on top of the 3. you get it?

8 0
3 years ago
In a group there are 35 girls for every 10 boys. what is the reduced ratio.
antoniya [11.8K]
The actual reduced ratio is 7:2
3 0
4 years ago
The equation of the line passing through the points (−10, 0) and (−8, 20) can be expressed as y = mx + b. Give the value of b.
grigory [225]

(-10, 0) and (-8,20)

y=mx+b

here m is slope and b is y intercept

firstly we have to find the value of m , that is slope

formula is

m=\frac{(y_{2} - y_{1})}{(x_{2}- x_{1})}

So m=\frac{20-0}{-8-(-10)}= \frac{20}{2}=10

Plug in the function\

y=10 x+b

Now plug any one point in the function to find the value of b

0= 10 (-10) +b

0=-100+b

Add 100 to both sides

b=100

6 0
4 years ago
Read 2 more answers
Other questions:
  • Plz help I will do anything
    15·1 answer
  • What is the solution to the system of equations? -7x-2y+z=-2 <br> 6x-y-z=-18<br> 5x+4y-z=18
    13·1 answer
  • 8) Solve 7x + 12y = 36 for y. *
    11·1 answer
  • Simplify the following polynomial expression. (5x^4-9x^3+7x-1)+(-8x^4+4x^2-3x+2)-(-4x^3+5x-1)(2x-7)
    9·1 answer
  • The profit function, y, for selling x shirts is given by the equation y=-0.1x^2+10x. What is the maximum value of the profit, y?
    13·1 answer
  • Three More Than Eight Times A Number Is Equal To 19
    10·2 answers
  • P over 8 4<br><br> The solution is ___.
    9·1 answer
  • Can someone help me please
    5·1 answer
  • Please answers the questions A-C!!!
    15·2 answers
  • The area of Chile is approximately 2*10^6 square kilometers the area Bosnia is approximately 9*10^4 square kilometers what is th
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!