Answer: x = 27, y = 23
Explanation:
x = chickens
y = horses
║ x + y = 50
║ 2x + 4y = 146
║ 2x + 2y = 100
║ 2x + 4y = 146
(2x + 4y = 146) - (2x + 2y = 100)
2y = 46
y = 23 <span> <<<<<<<< We found y ¯\_(ツ)_/¯
Sub y = 23 into </span> x + y = 50
x+ 23 = 50
x = 50 - 23
x = 27 <<<<<<<< We found x ¯\_(ツ)_/¯
The two equations are vertical angle, which would be equal to each other.
Set the equations to equal and solve for x:
5x -10 = 3x +40
Subtract 3x from both sides:
2x -10 = 40
Add 10 to both sides:
2x = 50
Divide both sides by 2:
x = 50 / 2
x = 25
The answer is B. 25
Answer:
Step-by-step explanation:
From the question we are told that
February Heat 
February Gas 
April Heat 
April Gas 
Generally equation for heating degree-days X is mathematically given by
Generally the equation for gas bill Y is mathematically represented by
The equation representing the relationship between the gas bill (Y) and heating degree-days (X) is
It's a bit of a bummer to have to work through all of these to find the answer. That a lot of slope calculations (or graphing, or whatever). When there are this many, a spreadsheet or other machine help can make it easier.
The correct choice is the last one, XYZ, with vertex X being where the right angle is located.
_____
Slope of XY is 4/7; slope of XZ is -7/4. The product of these is -1, so those segments are at right angles.
Answer:
$72
Step-by-step explanation:
The sale offers 2 pair of shoes for $45, but the price is same for 1 pair of shoes.
The cost of 3 pair of shoes
= The sale price of 2 pair of shoes + Regular price of 1 pair of shoes
= $45 + $27
= $72
So, 3 pairs of shoes will cost $72 today.
