Mrs. S Dungeon of Doom

Make me a direct proportion equation

100

1/4y=5x

y=20x

200

1/8y=2x

y=16x

300

2/3y=5/8x

y=15/16x

400

y/x=57/4

y=57/4x

500

33y/x=48

y=16/11x

y is to x

100

y is directly proportional to x, and y=14 when b=42.  Write the equation

y=1/3x

200

w is proportional to v and w=6 when v=10.  Write the equation.

w=3/5v

300

 a varies directly as b, when b=24 and a=4.  Write the equation

a=1/6b

400

y varies directly as x and x=1/2 and y=18.  Write the equation

y=36x

500

g varies directly as e when e=36 g=9.  Write the equation.

g=1/4e

Tell me a story

100

The cost of caps, c, is directly proportional to the number of caps, n.  I bought 12 caps for $96.  What is the cost of one cap?

$8

200

The cost of caps, c, is directly proportional to the number of caps, n.  I bought 12 caps for $96.  Write an equation that relates c and n

c=8n

300

The cost of caps, c, is directly proportional to the number of caps, n.  I bought 12 caps for $96.  Find the value of c when n=20

$160

400

A tank can only hold so much water.  The time it takes to fill the empty tank, t minutes, is inversely proportional to the rate of the water flowing into the tank, r pints per minute.  When the rate is 200 pints/minute, the tank can fill in 2 minutes.  Write an inverse proportion equation.

tr=400

500

A tank can only hold so much water.  The time it takes to fill the empty tank, t minutes, is inversely proportional to the rate of the water flowing into the tank, r pints per minute.  When the rate is 200 pints/minute, the tank can fill in 2 minutes.  Write an inverse proportion equation.  If the water only flows at the rate of 100 pints per minute, how long will it take to fill the tank?

4 minutes

Make me a inverse proportion equation.

100

20y=4/x

xy=1/5

200

16y=64/x

xy=4

300

xy=.25+.55

xy=.8

400

xy=(1/5-1/20)

x/y=3/20

500

xy=2(1/8)

xy=1/4

Gonna Stump Ya

100

S in inversely proportional to t and t=7 when s=12.  What is the value of s when t=5

16.8

200

y is inversely proportional to s and x=7.5 when y=6.  Find y when x=2

22.5

300

A machine can pack 60 packets of pasta in 5 minutes.  How long does it take the machine to pack 240 packets of pasta?

20 mins

400

A machine can pack 60 packets of pasta in 5 minutes.  How many packets of pasta can the machine pack in an hour?

720 packets

500

Emma drinks water at 14 licks per minute.  How many licks will she have in 2.5 minutes?

35 licks of water