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
lara [203]
3 years ago
13

Martina is currently 16 years older than her cousin Joey. In 5 years she will be 3 times as old as Joey. Use this information to

answer the following questions. If you let x represent Joey’s current age, what expression can you use to represent Martina’s current age? Based on your answer to part a, what expression represents Joey’s age in 5 years? What expression represents Martina’s age in 5 years? What equation can you write based on the information given? What is Joey’s current age? What is Martina’s current age?
Mathematics
2 answers:
marishachu [46]3 years ago
8 0
<span>m = j + 16
m + 5 = 3j
---
put the system of linear equations into standard form
---
m - j = 16
m - 3j = -5
---
x - y = 16
x - 3y = -5

so now that you have your equations formed, just solve. 

x - y = 16 , which means that x = y + 16 
substitute for x in the second equation : 
 
Hope this helps

</span>
Semmy [17]3 years ago
3 0
M=martina's age now
x=joe's age now

m is 16 older than x means
m=16+x


in 5 years (m+5 and x+5) she will be 3 times as old a joey
m+5=3(x+5)

so
we have
m=16+x
m+5=3(x+5)



a.
m=16+x

b.
x+5
m+5

c.
m=16+x
m+5=3(x+5)

d.
solving
sub 16+x for m
16+x+5=3(x+5)
distribute and add like terms
21+x=3x+15
minus x both sides
21=2x+15
minus 15 both sides
6=2x
divide by 2
3=x

m=16+x
m=16+3
m=19

joey is 3 and martina is 19

You might be interested in
PLEASE I NEED HELP ASAP {WILL REWARD BRAINLIST}
Elina [12.6K]
The answer is g(x) = 2^x+3-2
5 0
3 years ago
Read 2 more answers
At the carnival, Sally purchased 20 tickets and a drink that was $4.50. Her total for everything was $44.50.
marshall27 [118]
$2 is the answer I assume
6 0
3 years ago
Is this a quadratic function 2x+13=13
lys-0071 [83]

Answer:

Step-by-step explanation:

Simplifying

2x + 13 = 0

Reorder the terms:

13 + 2x = 0

Solving

13 + 2x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-13' to each side of the equation.

13 + -13 + 2x = 0 + -13

Combine like terms: 13 + -13 = 0

0 + 2x = 0 + -13

2x = 0 + -13

Combine like terms: 0 + -13 = -13

2x = -13

Divide each side by '2'.

x = -6.5

Simplifying

x = -6.5

7 0
2 years ago
Find the value of a and b if √5-1/√5+1=a+b√5
timurjin [86]

Answer:3/2-(√5)/2

Step-by-step explanation:

4 0
3 years ago
Please help me guys, its five questions
ruslelena [56]

Answer:

1. A 2.d 3.b 4.a 5. c

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Which statments are true about the ordered pair (-1 -4) (-1 -4) and the system of equations
    11·1 answer
  • 5-7(-4q+5) show work please
    9·1 answer
  • How is 8% sales tax like an 8% increase
    11·2 answers
  • Which is greater, 8.0 or 0.8? Explain .
    15·1 answer
  • Find the domain for the rational function f of x equals quantity x plus 4 over quantity 3 times x minus 5. negative infinity to
    15·1 answer
  • If you travel south from the equator to 25°S, how far will you have to travel? The circumference of the earth is approximately 4
    12·1 answer
  • a map represents every 4 miles with 1 inch.if a school and a bank are actually 12 miles apart,how far apart are they on the map,
    8·1 answer
  • What is volume of the cube after cutting<br> out the cone?<br> -4 cm<br> 6 cm<br> 6 cm<br> 6 cm
    14·2 answers
  • Which type of function is shown in the table below?
    7·2 answers
  • Find the perimeter of a triangle with vertices A(–3, 5), B(–3, 2), and C(1, 2)<br> Show all work
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!