The ratio of blue to red marbles is 2 to 5. if i have a total of 25 marbles , how many would it be blue.

The number of blue marbles is 10

Step-by-step explanation:

The correct question is

The ratio of blue to red marbles is 2 to 5. If I have a total of 35 marbles , how many would it be blue

Let

x -----> the number of blue marbles

y -----> the number of red marbles

we know that

----> ---> equation A

----> equation B

Substitute equation A in equation B

Solve for y

Find the value of x

therefore

The number of blue marbles is 10

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

idk

step-by-step explanation: