V=

note, r and R are differnt
so multipl both sides by (r+R)
V(r+R)=12R
distribute
Vr+VR=12R
minus VR from both sides
Vr=12R-VR
undistribute R
Vr=R(12-V)
divide both sides by (12-V)

or
Answer:
z=(At-67)/(45-A)
Step-by-step explanation:
A(t+z)=45z+67
At+Az=45z+67
At=45z-Az+67
At=z(45-A)+67
z(45-A)=At-67
z=(At-67)/(45-A)
Answer:
x =3.375
Step-by-step explanation:
We can use proportions to solve this problem. Put the smaller triangle side length over the larger triangle side length.
6+x 12
---------- = -----------
25 32
(6+x) *32 = 12*25
Distribute
192 +32x = 300
Subtract 192 from each side
192-192 +32x = 300-192
32x =108
Divide by 32
32x/32 = 108/32
x =3.375
Answer:
y=-30x + 360( u
i think this is the answer)
Step-by-step explanation:
Answer:
7.1 in
Step-by-step explanation:
use the pythagorean theorem
3.1^2+6.4^2=c^2
9.61+40.96=50.57
***IMPORTANT remember to square root the answer you get. it will still be in c^2 form. so 50.57 wouldn't be the real answer, and instead would be 7.1