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
puteri [66]
3 years ago
15

Adam is three years older than Joe. After three years, Adam’s age will be four years less than two times Joe's age. Considering

Adam's present age as x years and Joe’s present age as y years, write a pair of linear equations to model the above situation.
Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
3 0

Answer:

2y=2y-4=x

Step-by-step explanation:

You might be interested in
HELP ME WITH MATH ANGLES PLEASE BRAINLIST
mamaluj [8]

the second slide is A. 22

and the last one is x=81    z=99  and y=68

hope this helps

6 0
3 years ago
How can b^2+9b+14 be re-written?
charle [14.2K]
b^2+9b+14 =\\ \\=b^2+9b-2b + 2b +14 =\\ \\ =b^2+7b +2b +14 = \\ \\ = b(b+7)+2(b+7)=\\ \\=(b+7)(b+2) \\ \\ Answer: \ 4. ) \  (b+7)(b+2)
3 0
3 years ago
What is the approximate distance from the origin to the point (−5, 6, −1)? Round to the nearest tenth. A) 3.2 units B) 3.5 units
earnstyle [38]

Answer:

7.9.

Step-by-step explanation:

Use the Pythagorean Theorem.

√((-5)^2 + (6)^2 + (-1)^2) = √62 = 7.87 = 7.9.

5 0
3 years ago
What is the sum of first k+1 even numbers
Gekata [30.6K]

Answer:

Sum = (k+1)(k+2)

Step-by-step explanation:

Given

k + 1 even numbers

Required

Their sum

This question will be solved using the sum of nth term of an AP

S_n = \frac{n}{2}(2a + (n - 1)d)

Where

a = the first even number

a = 2

n = number of terms

n =k +1

d = difference between consecutive even numbers

d = 2

So, the expression becomes:

Sum = \frac{k+1}{2}(2 * 2 + (k + 1 - 1) * 2)

Sum = \frac{k+1}{2}(2 * 2 + (k) * 2)

Sum = \frac{k+1}{2}(4 + 2k)

Sum = \frac{(k+1)(4 + 2k)}{2}

Factorize 4 + 2k

Sum = \frac{(k+1)*2*(2 + k)}{2}

Sum = (k+1)*(2 + k)

Sum = (k+1)*(k+2)

Sum = (k+1)(k+2)

8 0
3 years ago
Which a, b, and c values should be substituted into the quadratic formula for this equation? x2 - x 5 + 1 = 0
Yuri [45]

For A substitute it with 1 for x squared, because is has a coefficient of 1, -5 for B because the coefficient of -5x is -5, and 1 for C because there is no variable connected to is, and one is the coefficient.

6 0
3 years ago
Other questions:
  • What is 2x+13-5=7x-30
    10·2 answers
  • Please help me with my math
    9·1 answer
  • PLEASE HELP.
    14·2 answers
  • What is the soultion to <br> 3-(4w+5)=.50(8w+28)
    9·1 answer
  • Write cos (19°) in terms of sine​
    14·1 answer
  • Please help and give right answers please!
    15·1 answer
  • Find the value of x. Round to the nearest tenth.<br> Can somebody plz help me with 16 and 19
    12·1 answer
  • How likely is it that the spinner will land on a green space?
    12·2 answers
  • Can anybody explain how to subtract mixed fractions?
    10·2 answers
  • What is the volume of a cylinder with a height of 13 yards and a diameter of 5 yards?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!