Section 6.3
Find the value of the indicated variable for the values given.
1) d = rt; determine r when t = 9 and d = 36
1)
2) P = 2L + 2W; determine L when P = 22 and W = 3
2)
3) V =
1
Bh; determine B when V = 42 and h = 6
3
4) C = 2 r; determine r when C = 37.68 and
= 3.14
5) I = prt; determine t when I = 32.2, p = 230 and r = 0.07
3)
4)
5)
6) A =
1
(b + B)h; determine h when A = 85, b = 14 and B = 20
2
6)
7) C =
5
(F - 32) ; determine C when F = 104
9
7)
8) 18x + 2y = 8 Solve for y
8)
9) 8x - 3y = 9 Solve for y
9)
10) x - 2y = 3 Solve for y
10)
11) 4x - 5y = -10 Solve for y
11)
12) S = 2 rh + 2 r2 Solve for h
12)
1
Bh Solve for B
3
13)
14) P = s1 + s2 + s3 Solve for s3
14)
13) V =
15) F =
9
C + 32 Solve for C
5
15)
1
Answer Key
Testname: SECTION 6-3
4
2) 8
3) 21
4) 6
5) 2
6) 5
7) 40
8) y = - 9x + 4
8
9) y = x - 3
3
1)
10)
y=
1
x- 3
2
2
11)
y=
4 +
x 2
5
12)
h=
S - 2 r2
2 r
13)
B=
3V
h
14)
s3 = P - s1 - s2
15)
C=
5
(F - 32)
9
2