The numbers are 43 and 3. The difference between these two is 40. 43+3*4 equals 55.
Step-by-step explanation:
a. g(2) = 2x + 1
2(2) + 1
4 + 1 = 5
b. g(4) = 2x + 1
2(4) + 1
8 + 1 = 9
c, g(-1) = 2x + 1
2(-1) + 1
-2 + 1 = -1
d. g(x) > 2x + 9
9 > 2x + 9
9 - 9 > 2x
0 > 2x
Therefore, x = 0/2
= 0
The reaction times form a straight line with gradient of 60/140 = 3/7 m/kph
Reaction time at 130 kph = 3/7 x 130 = 390/7 = 56 m to nearest whole number
There are 45 oranges and 90 apples in the beginning.
Step-by-step explanation:
Let the no. of orange be 'b'
Let the no. of apples be 'a'
Given that,
2b = a
3(b-15) = a
3b - 45 = a
3b - 45 = 2b
3b - 2b = 45
b = 45
2b = a
2(45) = a
a = 90
There are 45 oranges and 90 apples in the beginning.
