Help omg plssss !!!!!!!!!!!!!!!!!!!!!1
2 answers:
You might be interested in
Answer:
x=-32/29
Step-by-step explanation:
3x+4y=36 Equation 1
-5x+3y=35 Equation 2
Multiplying equation 1 with 3 (value before y in equation 2) and equation 2 with 4 (value before y in equation 1) we obtain equations 3 and 4 as follows
9x+12=108 equation 3
-20x+12y=140 equation 4
Subtracting equation 3 from equation 4 we obtain
-29x=32
x=-32/29
To find the value of y, we substitute the value of x into equation 2 as initially given in the equation
-5(-32/29)=35-3y
-5(-32/29)-35=-3y
Answer:
The time required them working together to shovel the snow is T = 1.428 hours
Step-by-step explanation:
Given data
Time taken by first person to shovel the snow = 2 hours
Time taken by second person to shovel the snow = 5 hours
Time taken by both persons to shovel the snow
Put all the values in above equation we get
T = 1.428 hours
Therefore the time required them working together to shovel the snow is T = 1.428 hours