Source Natural Home and Garden CHECK POINT 5 Being aware of which appliances and activities inyour home use the most energy can help you make sound decisions thatallow you to decrease energy consumption and increase savings. Thecircle graph in Figure 1.4 shows how energy consumption is distributedthroughout a typical home. Suppose that last year your family spent $2148.72 on natural gas andelectricity. Assuming the circle graph in Figure 1.4 is representative ofyour family’s energy consumption. a. Use the appropriate information displayed by the graph todetermine a calculation that shows the amount your family spenton heating and cooling for the year. 0.48 × 24.48.72 b. Use rounding to find a reasonable estimate for this calculation. 0.5 × 2100 = 1050 Your family spent approximately $1050 on heeling end cooling lost year.
Source Natural Home and Garden CHECK POINT 5 Being aware of which appliances and activities inyour home use the most energy can help you make sound decisions thatallow you to decrease energy consumption and increase savings. Thecircle graph in Figure 1.4 shows how energy consumption is distributedthroughout a typical home. Suppose that last year your family spent $2148.72 on natural gas andelectricity. Assuming the circle graph in Figure 1.4 is representative ofyour family’s energy consumption. a. Use the appropriate information displayed by the graph todetermine a calculation that shows the amount your family spenton heating and cooling for the year. 0.48 × 24.48.72 b. Use rounding to find a reasonable estimate for this calculation. 0.5 × 2100 = 1050 Your family spent approximately $1050 on heeling end cooling lost year.
Solution Summary: The author explains how the circle graph shows that 48% of family's expenditure in on heating and cooling is determined by rounding.
CHECK POINT 5 Being aware of which appliances and activities inyour home use the most energy can help you make sound decisions thatallow you to decrease energy consumption and increase savings. Thecircle graph in Figure 1.4 shows how energy consumption is distributedthroughout a typical home.
Suppose that last year your family spent $2148.72 on natural gas andelectricity. Assuming the circle graph in Figure 1.4 is representative ofyour family’s energy consumption.
a. Use the appropriate information displayed by the graph todetermine a calculation that shows the amount your family spenton heating and cooling for the year.
0.48
×
24.48.72
b. Use rounding to find a reasonable estimate for this calculation.
0.5
×
2100
=
1050
Your family spent approximately $1050 on heeling end cooling lost year.
A rug company weaves rugs that are made by repeating the design in Figure 12.49. Lengths of portions of the design are indicated in the figure. The yarn for the shaded portion of the design costs $5 per square unit, and the yarn for the unshaded portion of the design costs $3 per square unit. How much will the yarn for a 60-unit-by-84-unit rug cost? Explain your reasoning.
Consider an economy with three sectors, Chemicals & Metals, Fuels & Power, and Machinery. Chemicals sells 30% of its output to Fuels and 60% to Machinery and retains the rest. Fuels sells 70% of its output
to Chemicals and 20% to Machinery and retains the rest. Machinery sells 40% of its output to Chemicals and 30% to Fuels and retains the rest. Complete parts (a) through (c) below
a. Construct the exchange table for this economy.
Distribution of Output from:
Chemicals
Fuels
Machinery
(Type integers or decimals.)
Purchased by:
Chemicals
Fuels
Machinery
A particle travels along a straight line path given by s=9.5t3-2.2t2-4.5t+9.9 (in meters).
What time does it change direction?
Report the higher of the answers to the nearest 2 decimal places in seconds.
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