Answer:
Answer: Janet is 16, and David is 11.
Step-by-step explanation:
Let the ages be j and d.
j = d + 5
j + d = 27
Substitute d + 5 for j in the second equation.
d + 5 + d = 27
2d + 5 = 27
2d = 22
d = 11
Substitute 11 for d in the first equation.
j = d + 5
j = 11 + 5
j = 16
Answer: Janet is 16, and David is 11.
Answer:
B I think is the right answer
Answer:
The gradient of the line joining the points 
and 
is 
.
Step-by-step explanation:
The gradient of the line joining two distinct point on a plane is represented by the slope of a secant line (
), that is:
(1)
If we know that and , then the gradient of the line is:
The gradient of the line joining the points and is .
Answer:
Take 8÷3.5. So the answer is aprominently 2.29.
Answer:
Actual distance = 24 km
Step-by-step explanation:
16 cm
2cm = 3 km
We could use a ratio to do this
16/2 = x/3
8=x/3
Multiply both sides by 3
24=x
Hope this helps :)
