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 = 
⇒ x= 69cm
∴ Ian's height = x+14 = 69+14 = 83 cm
Answer:
c cylinder
Step-by-step explanation:
Answer:
56
Step-by-step explanation:
The mean is the average number of a data set.
To find the mean:
First, add all the numbers in the data set:
30 + 45 + 45 + 70 + 90 = 280
Next, divide the sum (280) by 5 (amount of values):
280 / 5 = 56
56 represents the mean of your data set.
Answer:
The volume of P is <u>1728 cubic yards.</u>
<u></u>
Step-by-step explanation:
For similar shapes, the ratio of volumes are defined as:
= 
where h1 and h2 are the heights of each pyramid respectively.
We know that the scale factor of P to Q is 6:1 i.e. the ratio of heights is also 6:1. And the volume of Q is given as 8 cubic yards. so, using the relation defined above we can write:
= 
= 
Vp = 6³ * 8
= 216 * 8
Vp = 1728 cubic yards
The volume of P is <u>1728 cubic yards.</u>
Answer:
7.33 mps
Step-by-step explanation:
1'st step: divide 132m divided by 18s= 7.33 mps