Answer:90
Step-by-step explanation:
10,20,30,40,50,60,70,80,90,100
Counting in tens the same row as 83 is 90 .
Answer:

Step-by-step explanation:
The combined distance that both planes will cover is 200 miles
Time taken by both planes will be the same (t)

So, the combined distance is

They will meet in
.
Answer:
2.5
type A/B
Step-by-step explanation:
10/2.5=4
15/6=2.5
18/7.2=2.5
Answer:
x = 80°
Step-by-step explanation:
The full angle of the straight line is 180°. We already have 100°, so we need to find out what is left over for x
180 - 100 = 80
So the angle of x is 80°
Answer:
24 mm
Step-by-step explanation:
25^2 - 7^2
625 - 49
= 576
missing side = √576 = 24