$\left\{\begin{array}{ccc}-5x=y-5&\text{subtract y from both sides}\\-2y=-x-21&\text{add x to both sides}\end{array}\right\\\left\{\begin{array}{ccc}-5x-y=-5&\text{multiply both sides by (-2)}\\x-2y=-21\end{array}\right\\\underline{+\left\{\begin{array}{ccc}10x+2y=10\\x-2y=-21\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad11x=-11\qquad\text{divide both sides by 11}\\.\qquad x=-1\\\\\text{put the value of x to the first equation:}\\\\10(-1)+2y=10\\-10+2y=10\qquad\text{add 10 to both sides}\\2y=20\qquad\text{divide both sides by 2}\\y=10$

3 0

3 years ago

Emily and Miranda are standing outside. Emily is 5 feet tall and casts a shadow of 28 inches. Miranda's shadow is 29.4 inches lo

trasher [3.6K]

The answer is B. 5 1/4 feet.

4 0

3 years ago

2 cups is to 10 cans as 14 cups is to how many cans

vekshin1

Answer: 80 cans

Step-by-step explanation:

The ratio between cups to cans is 1:5

If we have 14 cups, multiply that by 5 and it is equal to 80 cans

6 0

3 years ago

Can someone please help me with this I don’t understand

ExtremeBDS [4]

Answer:Find the area of the shaded area and add it together

Step-by-step explanation:

Find the area of the shaded area and add it together

6 0

2 years ago