Answer:
y - x = - 2 b
Step-by-step explanation:
Given-
3 x + 2 y = 5 a + b...................(i)
4 x - 3 y = a + 7 b.....................(ii)
<em><u>Multiply by 3 and 2 in equation (i) & (ii) respectively-</u></em>
<em><u>Add equation (iii) & (iv)-</u></em>
9 x + 6 y = 15 a + 3 a...................(iii)
<u>8 x - 6 y = 2 a + 14 b</u> ...................(iv)
17 x = 17 a + 17 b
<u>x = a + b</u>
Put x = a + b in equation (i)-
<em>2 y = 5 a + b - 3 a - 3 b</em>
<em>2 y = 2 a - 2 b</em>
<u>y = a - b </u>
<em>∴ y - x = a - b - ( a + b )</em>
<em>y - x = a - b - a - b</em>
y - x = - 2 b
1.0 and 1/1
100% is the same as 1.
It is going to be 450 / 24 to get the amount of people in each class which will give 75 / 4. then the number of people who play golf is 75/4 * 4 which gives 75. so 75 people play golf
Well, how many minutes are there in a year? It would be way too easy to say "too many".
First, we calculate minutes in a day, which is 60 x 24 (minutes in an hour x number of hour)
This equals 1440. There are 365 days in a year, so we multiply 365 by 1440, which equals 525,600
The conversion of oz to gallon occurs, and bigger units mean division since their capacity makes the necessity for them significantly smaller; we divide 525600 by 128, and we get 4106.25.
4106.25 gallons of water are wasted in a year
Answer:
all work is shown and pictured
