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
KiRa [710]
3 years ago
7

Lucie is 5 years younger than her brother. Three years ago, Lucie was twice younger than her brother. How old is each now?

Mathematics
2 answers:
Dafna11 [192]3 years ago
5 0

Answer: Lucie is 8 and her brother is 13

Step-by-step explanation: the only possible way for Lucie to be half her brother's age while being 5 years younger at the same time, is if she's 5 and he's 10. that's how old they were 3 years ago. now you just add 3 to 5 and 10 to find their current ages; 5+3=8 so Lucie is 8, and 10+3=13 so her brother is 13.

                                                             :)

Nookie1986 [14]3 years ago
4 0

Answer:

 Lucie is 8 and her brother is 13

Step-by-step explanation:

Lucie is 5 years younger than her brother. Three years ago, Lucie was twice younger than her brother.

Let L be the Lucie age

and B be the brothers age

Lucie is 5 years younger than her brother

L= B-5

Three years ago, Lucie age is L-3

brother is B-3

Lucie was twice younger than her brother.

2(L-3)= B-3

Plug in B-5 for L

2(B-5-3)= B-3

2B - 16= B-3

Subtract B from both sides

B - 16 = -3

Add 16 on both sides

B= 13

Age of brother = 13

Age of Lucie = brother -5 = 13-5 = 8

You might be interested in
Given the inequality n <-12 or n 2 -10, which of the following would NOT be a solution to this inequality?
borishaifa [10]
A is the correct answer
7 0
3 years ago
Plz help its 7th grade distributive proprty
Marat540 [252]

Answer:

a = 3.9

Step-by-step explanation:

Isolate the varible by dividing each side by factors that don't contain the variable.

5 0
3 years ago
Read 2 more answers
What the simplified form of x- 1 +4+7x-3
Nuetrik [128]
Collect like terms (x + 7x) + (-1 + 4 - 3)

Simplify

Answer: 8x
7 0
3 years ago
Find the coordinates of the point (x, y)<br> shown on the unit circle.<br> X=
wel

Answer:

purrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which best describes the polygon whose vertices in the coordinate plane are (-2, 3), (2,3), (2, -1), (-2, 1)?
kondaur [170]

You can see the polygon in the attached figure.

It's a trapezoid, so it's not equilateral, nor regular.

4 0
3 years ago
Other questions:
  • A farmer can buy two types of plant​ food, mix A and mix B. Each cubic yard of mix A contains 35 pounds of phosphoric​ acid, 15
    8·1 answer
  • The corresponding arcs of two congruent chords are equal. <br> A)True <br> B)False
    13·1 answer
  • What is the value of 4p − 2, when p = 8?
    14·2 answers
  • Please answer ASAP! An explanation is a MUST requirement in order to receive points and the Brainliest answer. Thank you.
    8·1 answer
  • T = 2π √l/g Re-arrange to make g the subject.
    11·1 answer
  • What type of polynomial is P(x) = 4x – 2x² # 3?
    11·1 answer
  • Please help! I’ll mark you as brainliest if correct!!!
    12·2 answers
  • Step by step how do you solve ratios and proportions?
    11·1 answer
  • The perimeter of a square is 16 cm. Find the length of its diagonal.​
    6·2 answers
  • Pls help me <br> Find the value of x.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!