It takes 40 minutes for 8 people to paint 4 walls.
How many minutes does it take 10 people to paint 7 walls?
minutes

56 minutes

Explanation: it will take 1/4 of the time to paint one wall. So it will take 10 minutes for 8 people to paint one wall. So the number of minutes it will take for one person to paint 7 walls is 80 x 7 =560 and because there is ten people 560/10=56.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation: