Answer:
no solution
Step-by-step explanation:
+12y and -12y cancel each other out.
we are left with 43+41=8+56
84 doesn't equal 64
so NO SOLUTION
Answer:
Step-by-step explanation:
Given
Required
Find a:b
Cross Multiply
Open brackets
Collect Like Terms
Divide through by -b
Represent as a ratio
Answer:
Let x = the unknown cost of a single hot dog and y = the unknown cost of a single soft drink. We have two unknowns so we need two equations to find them.
Equation 1 - 10 hot dogs and 5 soft drinks cost $35; that is 10x + 5y = 35
Equation 2 - 7 hot dogs and 4 soft drinks cost $25.25; that is 7x + 4y = 25.25
First let's re-write equation 1 to solve for y:
10x + 5y = 35
5y = 35 - 10x (subtract 10x from both sides)
y = 7 - 2x (divide both sides by 5)
Next, let's substitute 7 - 2x for y in equation 2:
7x + 4y = 25.25
7x + 4(7-2x) = 25.25
7x + 28 - 8x = 25.25
-x + 28 = 25.25
x - 28 = -25.25
Solve for x, the cost of a single hot dog. Once you have that, use y = 7 - 2x to find the cost of a single soft drink.
Step-by-step explanation:
Hope it helpful
Answer:
180-65 = 115
Step-by-step explanation:
it is 115 since <7 <6 are a linear pair so they make a 180 angle so 180-65 is 115
Answer:
The slope of line passes (x1, y1) and (x2, y2) could be calculated by:
slope = (y2 - y1)/(x2 - x1)
=>A line passes (5, 1) and (2, -2) has the slope:
slope = (-2 - 1)/(2 - 5) = (-3)/(-3) = 1
Hope this helps!
:)
