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
Free_Kalibri [48]
3 years ago
12

Lisa is 10 cm taller than her friend ian. Ian is 14 cm taller than jim. Every month, their heights increase by 2 cm. In 7 months

, the sum of ian's and jim's height will be 170 cm more than lisa's height. How tall is ian now?
Mathematics
2 answers:
koban [17]3 years ago
5 0

Answer:  Ian's height = x+14 = 69+14 = 83 cm

Explanation :

Let the height of Jim be x

Let the  height of Ian be x+4

Let the height of Lisa be x+4+10=x+14

Since their heights increase by 2cm every months

so after 7 months ,

Jim's  height = x+14

Ian's  height= x+4+14=x+18

Lisa's  height= x+14+14=x+28

According to question,

Sum of Ian's and Jim's height = 170cm

x+18+x+14 = 170\\2x+32 =170\\2x =170-32\\2x = 138

⇒x = \frac{138}{2}

⇒ x= 69cm

∴ Ian's height = x+14 = 69+14 = 83 cm

leva [86]3 years ago
3 0

Answer:

Ian is 194 cm tall now

Step-by-step explanation:

Let the height of Jim be x

Now we are given that Ian is 14 cm taller than jim.

So,height of Ian be x+14

Now we are given that Lisa is 10 cm taller than her friend ian.

So, height of Lisa be x+14+10=x+24

Since their heights increase by 2 cm every months

So after 7 months ,

Jim's  height = x+(7 \times2)=x+14

Ian's  height=x+14+(7 \times2)=x+28

Lisa's  height=x+24+(7 \times2)=x+38

Now we are given that In 7 months, the sum of ian's and jim's height will be 170 cm more than lisa's height.

So, x+14+x+28=x+38+170

x+42=208

x=208-42

x=166

So, Ian's height = x+28 =166+28 = 194 cm

Hence  Ian is 194 cm tall now

You might be interested in
I need help plzz I don't know how to do this
Blizzard [7]
X greater than or equal to -7
7 0
3 years ago
Read 2 more answers
A construction company purchased 96 tons of marble. The price was $72 per ton. What was the approximate price of the marble?​
IrinaK [193]
96*72=6912
One ton is $72
You have 96 tons
So you take $72 96 times
7 0
3 years ago
How do you find answer for 8k=4/9
nasty-shy [4]
Isolate k by dividing both sides by 8

8k=4/9
k=4/72

Reduce if possible

4/72 -> 1/18
8 0
3 years ago
Read 2 more answers
NEED HELP NOW 50 POINTS!!!!!!!!!
puteri [66]
1st. is definitely 150.
2nd. is a i think
3rd. is 100 

8 0
3 years ago
Read 2 more answers
The local gas station charges a certain rate (dollars per liter) for gas, as shown in the graph below.
elixir [45]

Answer:

1.5$ per litre

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A and b are complementary and congruent. what is the measure of each of these angles?
    10·1 answer
  • A computer is programmed to combine 60,000 points of data in such a way that with each iteration, there are half as many data po
    10·1 answer
  • Evaluate 5y if y = 7
    14·1 answer
  • I NEED HELP!!!!!!!!!!!!! A spaceship needs to travel 5⁄7 of a light-year to get to the moon. The spaceship traveled 1⁄3 of a lig
    12·2 answers
  • PLEASE HELP PLEASE PLEASE DUE TONIGHT I HAVE NO IDEA HOW TO DO THIS
    15·1 answer
  • Answer for a,b,and c PLEASE!!!
    10·2 answers
  • S m a r t p e o p l e o n l y<br> please help me!
    9·2 answers
  • The variables x and y are directly proportional, and y=4 when x=9. What is the value of y when x=18?
    10·2 answers
  • What are the first 5 terms of an arithmetic sequence with a common difference of – 0.4 and the first term of 0.7?
    6·2 answers
  • A popular art teacher at a school asks a sample of students if they would be interested in taking an art class next year. Of the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!