2/3 would be the correct answer.
triangle area formula- A=h×b/2
so you do this backwards with the big triangle, 96÷12=8 then multiply by two is 16 and that's your height, and now if the small triangle's base is 3 then they divided the big triangle by four to get that three and know divide 16 by four and so your small triangle's height is 4 and now use the formula for the small triangle and so A=4×3 =12 and divide it by 2 and your area for the small triangle is 6
Given,
Time taken by motorboat to going 200 miles upstream is 5 hours.
Time taken by motorboat to going 200 miles downstream is 4 hours.
At upstream,
The speed of boat is offosed by the speed of current.
At downstream,
The speed of boat is incraesed by the speed of current.
Consider,
The speed of boat is b.
The speed of current is c.
The speed is calculated as,
Similarly,
Substituting the value of b from equation (2) then,
Substituting the value of c in equation (1) then,
Hence, the speed of boat is 45 mile per hour and speed of current is 5 mile per hour.
Answer:
scale factor is: 1:4
the value of x is: x=4
Step-by-step explanation:
to find the answer, you do
x= √5² - 3² = √25 - 9 = √16 = 4