1. A piece of cable 180 ft long costs $67.50. How much will 500 ft cost at the same unit price? 2. A

1. A piece
of cable 180 ft long costs $67.50. How much will 500 ft cost at the same unit
price?

2. A
copper wire 750 ft long has a resistance of 1.89 V. How long is a copper wire
of the same size whose resistance is 3.15 V?

3. A crew
of electricians can wire 6 houses in 144 h. How many hours will it take them to
wire 9 houses?

4. An
automobile braking system has a 12-to-1 lever advantage on the master cylinder.
A 25-lb force is applied to the pedal. What force is applied to the master cylinder?

5. Jones
invests $6380 and Hernandez invests $4620 in a partnership business. What percent

1. A piece
of cable 180 ft long costs $67.50. How much will 500 ft cost at the same unit
price?

2. A
copper wire 750 ft long has a resistance of 1.89 V. How long is a copper wire
of the same size whose resistance is 3.15 V?

3. A crew
of electricians can wire 6 houses in 144 h. How many hours will it take them to
wire 9 houses?

4. An
automobile braking system has a 12-to-1 lever advantage on the master cylinder.
A 25-lb force is applied to the pedal. What force is applied to the master cylinder?

5. Jones
invests $6380 and Hernandez invests $4620 in a partnership business. What percent
of the total investment does each have?

Q212;

1. One
gallon of a pesticide mixture weighs 7 lb 13 oz. It contains 11 oz of
pesticide. What percent of the mixture is pesticide?

2. Indicate
what kind of variation is shown by each equation .

(a) y1 x1 5 y2 x2

(b) y1x1 5 y2x2

3. What
kind of variation is indicated when one quantity increases while the other
increases so that their ratio is always the same?

4. Suppose
14 in. on a map represents 25 mi. What distance is represented by 358 in.?

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