9 because the square root of 81 is 9
Answer:
Ivan got £90 more than Tanya.
Step-by-step explanation:
Ivan and Tanya share the amount £150 in the ratio of 4 : 1
Amount received by Ivan = 
= 
= £120
Similarly, amount received by Tanya = 
= £30
Difference in their amounts = 120 - 30
= £90
Therefore, Ivan got £90 more than Tanya.
Answer:

Step-by-step explanation:
Given
See attachment for desk
Required
The area
First, calculate the area of the semicircular cutout

Where

So:



Next, the area of the complete trapezium

Where



So:



The area of the desk is:



Answer:
x=65
Step-by-step explanation:
x-5=60
Add 5 to both sides
x=65
Answer:
86.4 km
Step-by-step explanation:
Since the cyclist travels 1.8km in a minute, he will travel 48 times that in 48 minutes:
