This is a and d!! hope it helps
Answer:
Hello! :) I hope I am correct!!
Step-by-step explanation:
The answer would be: x=9
(Below is how I got ‘x=9’)
Here are the steps to solve this problem/equation.
1. Simplify both sides to the equation.
⇒10x +-21=61
⇒10x -29=61
2. Now add 29 to both of the sides
⇒ (you will end up with: 10x=90
3. And finally you divide both sides by 10
⇒ so x=9
Hope this helps!
By; BrainlyAnime
(I attached a picture of another way to solve this problem/equation!)
You need 5 more gallons for a full tank.
Since it takes 10 gallons to increase the gauge from 1/4 to 3/4 (change of 2/4 which is the same as 1/2), it must have taken 10 gallons to fill up to halfway for the tank.
Thus the full amount would be 10*2 = 20 gallons
However, since there is already 3/4 gasoline in the tank, we only need an extra 1/4 of 20 for it to be full.
So, 20*1/4 = 5
We need to add 5 gallons for a full tank.
Answer:
28.4
Step-by-step explanation:
Given that:
Mean, m = 31.3
Standard deviation, s = 2.8
Since, data is normally distributed :
P(x < 0.15) gives a Z value of - 1.036
Using the Zscore formula :
Z = (x - mean) / standard deviation
-1.036 = (x - 31.3) / 2.8
-1.036 * 2.8 = x - 31.3
-2.9008 = x - 31.3
-2.9008 + 31.3 = x
28.3992 = x
The temperature which correlates to the bottom 15% of the distribution is 28.4
Answer:
Step-by-step explanation:
We can write the equation in slope intercept form.
<h3>Finding Slope:</h3>
Slope is (rise/run).
We are given the points (-1,2) and (3,4).
The slope is 1/2.
<h3>Finding Y-intercept:</h3>
We can use the equation to solve for the y-intercept.
Replace 'y' and 'x' with a given point and solve for 'b'. I will use (3,4).
The y-intercept is 5/2.
<h3>Final Equation:</h3>
As stated above, slope intercept form is . 'M' is the slope and 'b' is the y-intercept.
We are given the slope of 1/2 and the y-intercept of 5/2.