Answer:
£7
Step-by-step explanation:
6.99 is closest to 7 as 7 is only one cent away
Answer:
x = 94 cm
Step-by-step explanation:
95.2 / 34 = 168/(x - 34)
95.2(x - 34) = 34 * 168
95.2x - 3236.8 = 5712
95.2x = 8948.8
x = 94
Answer:
a = 
Step-by-step explanation:
To find the value of a, find the Slope of both the equations.
For lines to be perpendicular to each other 
For line 1:
2x + 3y − 6 = 0 represent the line in y=mx +c form
3y = -2x + 6
y =
+ 
y =
+ 2
= 
For line 2:
ax - 3y = 5
ax = 5 + 3y
ax - 5 = 3y
y = 
= 
Apply the condition of perpendicularity:
*
= - 1

a = 
Answer:
a = 1 and b = 14 or a = 14 and b = 1
Step-by-step explanation:
This means that ab = 14 and a + b = 15. Simple guess and check reveals (1, 14) or (14, 1).