Answer:
B. x ≥ 2
Explanation:
<em>hey there,</em>
<em />
< 54-10x ≤ 20+7x
This is kind of simplified as if it was an equation with "=". First, put all the "x"s to one side.
54-10x-7x ≤ 20
Put all the regular numbers to the other side.
-10x-7x ≤ 20-54
Continue simplifying:
-17x ≤ -34
When finishing up this to try to find "x", you are going to change the sign to the opposite (since here it is greater than or equal to, you're going to change it to less than or equal to). The sign is going to change because the numbers being dragged over are negative. This is just a rule you have to follow. So:
x ≥ 2 is your final answer. >
<u>Hope this helped! Feel free to ask anything else.</u>
(Also for future reference, you can add your question in the question box instead of into the comments.)
Answer:
y = 72x
324miles
Step-by-step explanation:
Given parameters:
Speed of the car = 72miles/hr
distance = y
time = xhrs
Unknown:
Write a direct variation equation for the distance= ?
Distance covered in 4.5hrs =?
Solution:
A. Write a direct variation equation for the distance;
A direct variation is a linear equation.
It often takes the form y = kx
For this problem;
Distance = speed x time
input the parameters;
y = 72x
The direct variation equation is y = 72x
B. Distance traveled in 4.5hrs
y = 72x
x is the time taken;
So;
y = 72 x 4.5 = 324miles
Answer:
-32+y+90
y=122
Step-by-step explanation:
Answer:
See attached picture.
Step-by-step explanation:
h(x) has two functions in it. It has y = x and y =-x. Both have a slope of 1 or -1 and are diagonal lines. This means only 2 graphs of the four choices are possible answers.
Notice that y = -x has an interval that is greater than or equal to. This means it is marked with a closed or filled in dot at its start. This means choice B is the correct choice.