You'd solve this equation by writing two equations. I'd call treadmills x and stationary bikes as y. The two equation would be x+y=25 and y=x+7. You'd then plug the second equation into the first equation to get x+(x+7)=25. You'd combine like terms, making it 2x+7=25. You'd then subtract 7 from both sides to get 18 and divide that by 2 to get 9. You have 9 treadmills. Finally, you'd plug 9 in for x in the equation y=x+7, to get 16 for stationary bikes.
3(n-5)+7y has 2 terms.
-2(3x+5)+10(a+b) has also 2 terms. Because they are doing distributive property, they only count as 1 term all together. :)
2/4, 4/8...
Explanation: half the number of/any number that’s dividable by 2
The correct answer is option D which is the second coordinate of the vertex of the quadratic function that represents the maximum height of the baseball.
<h3>What is a quadratic equation?</h3>
The polynomial having a degree of two or the maximum power of the variable in a polynomial will be 2 is defined as the quadratic equation and it will cut two intercepts on the graph at the x-axis.
The second coordinate of the vertex of the quadratic function represents the maximum height of the ball.
The height of a baseball hit from a bat is modeled by a quadratic function of time, h(t)
General form of h(t) will be -16x² + v(t) + h
Where v represents initial velocity and h represents the initial height
h(t) represents the height of the baseball
h(t) is negative so the height reaches the maximum
vertex (h,k) represents maximum height (k) when time t=h
So the second coordinate of the vertex of the quadratic function represents the maximum height of the ball.
To know more about quadratic equations follow
brainly.com/question/1214333
#SPJ1