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
Verdich [7]
3 years ago
14

Twice jacks age plus five is 21. Write and solve an equation. How old is jack

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

Jack is 8

Step-by-step explanation:

j= jacks age

2j+5 =21

This is the equation from Twice jacks age plus five is 21

We want to isolate j

Subtract 5 from each side

2j+5 =21

2j+5-5 = 21-5

2j = 16

Divide by 2

2j/2 =16/2

j =8

My name is Ann [436]3 years ago
5 0

Answer:

Jack is 8 years old

Step-by-step explanation:

X2 +5=21

21-5=16%2=8

Jack is 8 years old

You might be interested in
1 BRAINLIEST and 10 points!
erastovalidia [21]

Answer:

≈40.25 Feet

Step-by-step explanation:

The diagnal length of the orchard is the hypotenuse of the triangal with side lengths of 36 and 18.

Therefore, to calculate that, set the hypotenuse as x.

36²+18²=x²

√1620≈ 40.25yards

If I'm wrong I'm so sorry!  I'm wrong sorry

If I'm right Thank you

(lost)

3 0
3 years ago
Read 2 more answers
Which two expressions are equivelent?!!<br><br>Please help me with it!!☺
arsen [322]
J

You get the same answer, you just start with (x + 3) in the second equation...

That moment when you realize you're dumb and the correct answer is F
3 0
3 years ago
Read 2 more answers
Multiplying a number by 4/5 then dividing by 2/5 is the same as multiplying what number?
prisoha [69]
Multiplying a number by 4/5 and then dividing by 2/5 is the same as multiplying by 2


5 0
3 years ago
What is x^2 + y^2 - 4x + 12y -20= 0 factored
andrew11 [14]
<span>Simplifying
4x2 + 8xy + 4y2

Reorder the terms:
8xy + 4x2 + 4y2

Factor out the Greatest Common Factor (GCF), '4'.
4(2xy + x2 + y2)
 
Factor a trinomial.
4((x + y)(x + y))

Final result:
4(x + y)(x + y)</span>
4 0
3 years ago
Write an equation of the line passing theough the point (4,-1) and perpendicular to the line y=2x-5.
Gwar [14]
Icons ojzo kook oak am

7 0
3 years ago
Other questions:
  • Whats 6,025÷n=25 answer
    12·1 answer
  • What is the simplified form of the following expression? (n5)(n2)
    10·1 answer
  • Solve for A<br> sinA=0.8829
    11·1 answer
  • Find the indicated angle measure or arc measure.
    11·1 answer
  • Layla is saving money to buy a bicycle that costs $249. She has already saved $193. She saves
    12·1 answer
  • The expression x2 - 10x + 24 is equivalent to (1) (x + 12)(x - 2) (3) (x + 6)(x + 4) (2) (x - 12)(x + 2) (4) (x - 6)(x - 4)
    5·1 answer
  • The average ant is about 7.5x10^-2 inches in length. The average adult human is about 6.72x10^1 inches tall. About how many time
    5·1 answer
  • An internet cafe charges $3.75 to use a computer and $.45 per minute while accesing the internet. What function rule describes t
    14·1 answer
  • two siblings are 55 years old combined the youngest sibling is 9 years younger than the oldest sibling how old is the youngest s
    9·1 answer
  • The height of a house is 52 ft. A tree beside the house is 7.5 ft more than twice as tall. What is the height, in feet, of the t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!