By similar triangles:-
2 / x = x / 4
x^2 = 8
x = sqrt 8 = 2.83
y^2 = 4^2 + x^2
= 16 + 8
y = sqrt24 = 4.90
Answer:
If 2 mph) 5 hours
If 2.5 mph) 4 hours
If m mph) 10/m hours
If m+2 mph) 10/(m+2) hours
If m/3 mph) 30/m hours
Step-by-step explanation:
To find the time divide the distance (10) by the speed.
10/2=5
10/2.5=4
10/m
10/(m+2)
10/(m/3)=10(3/m)=30/m
Answer:
b.
Step-by-step explanation:
beef = x and chicken = y
3x+4y=32
2x+5y=33
Let's say the savings in your account are given by $V, the number of weeks by n and the starting balance by $x:
V = x + 200n
Now if after saving for 4 weeks you have $1700 in your account, then:
1700 = x + 200*4
1700 = x + 800
x = 900, thus your starting balance is $900
Using this information we can now write up the general equation for the savings at the end of each week:
V = 900 + 200n
Answer:
it would equal 3
Step-by-step explanation:
