Solve the given system of equations. 2x+8y=5 24x-4y=-15

1 answer:

7 0

$\left\{\begin{array}{ccc}2x+8y=5\\24x-4y=-15&|\cdot2\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+8y=5\\48x-8y=-30\end{array}\right}\ \ \ \ |\text{add both sides of the equations}\\.\qquad50x=-25\ \ \ \ |:50\\.\qquad\ \boxed{x=-0.5}\\\\\text{substitute the value of x to the first equation}\\\\2(-0.5)+8y=5\\-1+8y=5\ \ \ \ |+1\\8y=6\ \ \ \ |:8\\\boxed{y=0.75}\\\\Answer:\ x=-0.5,\ y=0.75$

You might be interested in

A bag containing 15 ounces of mixed nuts contains 40% cashews. Liam adds 45 ounces of mixed nuts containing 60% cashews in the b

Hunter-Best [27]

I think it is 33 i’m sorry if i am incorrect

8 0

3 years ago

45+22÷11 times brace bracket parentheses 60-15 parentheses times 60 bracket +25

Paha777 [63]

$45 + 22 \div11 \times {(60 - 15) \times 60} + 25 = 5470$

4 0

3 years ago

Which figure represents the image of parallelogram LMNP after a reflection across the line y = x?

STALIN [3.7K]

Answer:

Answer: correct choice is option 3 - figure C.

Step-by-step explanation:

Using the reflection rule, you can find coordinates of image points: L'(1,3), M'(3,4), N'(3,5) and P'(1,4). As you can see, these are coordinates of vertices of the figure C

4 0

4 years ago

Read 2 more answers

Jerry is a judge. He hears 5 cases in 2 3/8 hours. How many cases does he hear per hour

Serggg [28]

Answer:

Jerry does $2.11$ cases per hour (Rounded to 2 decimal places). As we cannot do 0.11 cases. We can say Jerry does 2 cases per hour.