If the measurement from the outer edge of the first board to the outer edge of the last board is 144 inches, then there would be 14 spaces between the boards, each measuring 3/8 inch. (14x3/8)+(15x9 1/4)= 144.
Now if this section is in the middle of the boardwalk, there would need to be a space before the first board, making it a total of 15 spaces. Each space would then be 7/20 inch. (15x7/20)+(15x9 1/4)=144.
A section of a boardwalk is made using 15 boards. Each board is 9 1/4 inches wide. The total width of the section is 144 inches. The spacing between each board is equal. What is the width of the spacing between each board?
2 answers
The table shows the change in the amount (in gallons) of gasoline in a car over a period of five days. What is the total change in the amount of gasoline in the car over the five day period. Write your answer as a decimal.
Day Change in amount of gasoline (in gallons)
11 −1.05−1.05
22 −1.20−1.20
33 −0.85−0.85
44 10.5010.50
55 −2.15−2.15
The change in the amount of gasoline in the car is
gallons.
Day Change in amount of gasoline (in gallons)
11 −1.05−1.05
22 −1.20−1.20
33 −0.85−0.85
44 10.5010.50
55 −2.15−2.15
The change in the amount of gasoline in the car is
gallons.
2 answers