Answer:
{x,y} = {67/16,-15/4}
Step-by-step explanation:
// Solve equation [2] for the variable y
[2] 2y = -8x + 26
[2] y = -4x + 13
// Plug this in for variable y in equation [1]
[1] 4x + 5•(-4x+13) = -2
[1] -16x = -67
// Solve equation [1] for the variable x
[1] 16x = 67
[1] x = 67/16
// By now we know this much :
x = 67/16
y = -4x+13
// Use the x value to solve for y
y = -4(67/16)+13 = -15/4
Answer:
Step-by-step explanation:
1.
2.
3. b =
Can't be simplified.
Tan0 = opposite/adjacent =8/15
Therefore opposite(o)= 8
adjacent(a)= 15
Considering Hypotenuse
= √(o2 + a2)
= √[(8)2 + (15)2]
= √289 = 17
Sin0 = opposite/ Hypotenuse
= 8/17
Sin0=8/17
We can factorize the equation given:
<span>5 • 20 + 5 • 3
= 5(20 + 3)
= 5(23)
= 115</span>
Each cow makes 0.20 gallons day
5 x 0.20 = 1 gallon a day for 5 cows
3 x 0.20 = 0.6 gallons a day for 3 cows
0.6 x 5 days = 3 gallons of milk
Answer. 5 Days