<span>If Charles leaves the marina and sails his boat 10° west of north for 1.5h at 18km/h, then makes a right turn towards 60° east of north for 1.2h at 20km/h, he is 42 km from his starting point.</span>
Answer:
45°
Step-by-step explanation:
There are sets of formulas you can refer to for different situations like this. In your case here, you need to apply the formula and solve for the unknown. My work is in the attachment.
Answer:
The daughter is 16 and the father is 64
Step-by-step explanation:
f=father
d=daughter
f = 4d
f+8 = 3(d+8)
solving-
d=16
f=64
I will do number 1 only. You can then use my solution steps to do the rest.
Solve 4x + 5 > 5x − 2 for x.
4x + 5 > 5x − 2
4x - 5x > - 2 - 5
-x > -7
Dividing both sides by a negative number reverses the inequality sign. In other words, the sign > becomes < in the reply.
-x/-1 < -7/-1
x < 7
Answer: x < 7
The answer here means that whatever the value of x is for question 1, it must be less than 7.
You finish.
