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
olga nikolaevna [1]
2 years ago
11

Nine years ago, Katie was twice as old as Elena was then.

Mathematics
1 answer:
dimaraw [331]2 years ago
4 0

Answer:

Given that Elena is currently e years  old and Katie is k years old. Now, nine years ago, Katie was twice as old as Elena was.

So, k - 9 = 2(e - 9)

⇒ k - 2e + 9 = 0 .............. (1)

And, in four years, Elena will be as old as Katie is now.

So, k = e + 4

⇒ k - e - 4 = 0 ............... (2)

Therefore, the equations (1) and (2) matches the conditions. (Answer)

You might be interested in
On a coordinate plane, a curved line with a minimum value of (0, negative 9) and maximum values of (negative 2.3, 16) and (2.3,
nikitadnepr [17]

Answer:

(0, -9)

Step-by-step explanation:

On a coordinate plane, a curved line with a minimum value of (0, negative 9) and maximum values of (negative 2.3, 16) and (2.3, 16), crosses the x-axis at (negative 3, 0), (negative 1, 0), (1, 0), and (3, 0), and crosses the y-axis at (0, negative 9). Which is a y-intercept of the graphed function? (–9, 0) (–3, 0) (0, –9) (0, –3)

The y-intercept is the point where x = 0, and It says there that the graph crosses the y-axis at (0, -9)

5 0
4 years ago
Read 2 more answers
Cómo se escribe cinco millones novecientos veinticinco en número alguien me ayuda plis
Akimi4 [234]

Answer:

5,000,925

Step-by-step explanation:

1 million has 6 zeros after it.

7 0
3 years ago
Please Help me with this problem!!! ASAP
castortr0y [4]

The average rate of change is -5 per month

<h3>How to determine the average rate of change?</h3>

The interval is given as:

July to December

From the graph, we have:

July = 110

December = 30

The average rate of a function over the interval (a, b) is calculated as:

Rate = [f(b) - f(a)]/[b - a]

So, we have:

Rate = (30 - 110)/(December- July)

This gives

Rate = (30 - 110)/(12 - 7)

Evaluate

Rate = -16

Hence, the average rate of change is -5 per month

Read more about average rate of change at:

brainly.com/question/23715190

#SPJ1

6 0
2 years ago
Find the product ( x ≠ ? )
dsp73

Answer:

-3

Step-by-step explanation:

if x= -3

the denominator becomes 0 and the fraction becomes undefined.

8 0
3 years ago
Is (9,5) a solution to this system of inequalities?
iren2701 [21]

Answer:

yes it is..............

8 0
3 years ago
Other questions:
  • Find the unknown side length x. Write your answer in simplest radical form.
    14·2 answers
  • Replace ? with &gt;, &lt;, or = to make the statement true. 1.2 × 10^7 ? 8.85 × 10^6
    6·1 answer
  • What is the average acceleration of a southbound train that slows down from 15 m/s to 8.6 m/s in 1.2 s?
    15·1 answer
  • A letter or symbol that is used to represent a number is called a
    13·2 answers
  • GIVING BRAINLIEST FOR CORRECT ANSWER WITH EXPLANATION
    11·1 answer
  • What’s 3/5 + 3/2 need help okay
    12·1 answer
  • Someone HEEEEEELLLLPPP I WANNA PLAY TRAILMAKERS TONIGHT:(
    6·1 answer
  • Please someone solve this equation for me i only have 2 mins
    14·2 answers
  • What is a slope of 3/5 x and a y intercept of -1
    14·1 answer
  • Linear relationships are important to understand because they are common in the world around you. For example, all rates and rat
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!