Based on the given parameters of a = 1.7 cubic feet and concrete for first 4 steps as 17 cubic feet, the concrete is required for the first 12 steps is 132.6 cubic feet
<h3>Arithmetic progression</h3>
- First term, a = 1.7 cubic feet
- Sum of first four terms = 17 cubic feet
Sn = n/2 {2a + (n - 1) d}
17 = 4/2{2×1.7 + (4 - 1)d}
17 = 2{3.4 + (3)d}
17 = 2(3.4 + 3d)
17 = 6.8 + 6d
17 - 6.8 = 6d
10.2 = 6d
d = 10.2/6
- Common difference, d = 1.7
Concrete required for first 12 steps;
Sn = n/2 {2a + (n - 1) d}
= 12/2{2×1.7 + (12-1)1.7}
= 6{3.4 + (11) 1.7}
= 6(3.4 + 18.7)
= 6(22.1)
= 132.6
Concrete required for first 12 steps = 132.6 cubic feet
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False. You can use any number of values and any number for those values. You will always show the y value to be true.
1) To write 0.259 as a fraction let's firstly rewrite as
2) Count the digits the dot has gone to the left. Each digit to the left means divided by ten. Like this:
3) Since it starts with a zero then it can't be a Mixed number. So it is an improper fraction. No further simplification could be done.
Answer:
3000 boxes
Step-by-step explanation:
- So we find out how many boxes 6 people pack in a day on average
- 1500 divide by 4 days is 375 boxes a day
- Now how many boxes a day would 8 people do, if 6 people can do 375 boxes
- So the ratio of 6 people to 8 people is 3:4
- Using this we make another ratio using the boxes
-
- Multiply that by 6 days
The answer is 27
3x + 5x +18 =90
8x=72
x=9
Angle1=3x=3*9=27