Answer:
Step-by-step explanation:
1). (B). Replace one equation with the sum/difference of both equation.
System B is
- 4x - 6y = 9 ........ <em>(1B)</em>
-4x + 3x = - x
- 6y + y = - 5y
9 - 4 = 5
- x - 5y = 5 ........ <em>(2B)</em>
2). Yes, both system are equivalent.
I'm on this question too and all I know is store C is a better buy. I'm not very sure why but I'm pretty sure it is.
Answer:
(a)Susan's measurements are incorrect. correct measurement is 2 cups of each sugar and flour.
(b)The triple measure is 3 cups of sugar and 3 cups of flour.
Step-by-step explanation:
The original measurements of the ingredients are:
Cups of sugar needed = 1 cup
and Cups of flour needed = 1 cup
Now, the double of the original measurements are:
Double of sugar = 2 x ( Previous measurement ) = 2 x ( 1 cup) = 2 cups
Double of flour = 2 x ( Previous measurement ) = 2 x ( 1 cup) = 2 cups
(a) Susan doubled the recipe with 2.1 cups of sugar and 33 cups of flour.
As the double measurements of sugar and flour are 2 cups each.
hence, Susan's measurements are incorrect.
b) The triple measurements of the ingredients are:
Triple of sugar = 3 x ( Previous measurement ) = 3 x ( 1 cup) = 3 cups
Triple of flour = 3 x ( Previous measurement ) = 3 x ( 1 cup) = 3 cups
hence the triple measure is 3 cups of each sugar and flour.
Answer:-12/5
Step-by-step explanation:
Answer:
angle y
Step-by-step explanation:
angles w, x, and z are all equal to 73 degrees. Angle y is 107 degrees.