Answer:
D
Step-by-step explanation:
f(x)=0
x+2=0
x=-2
<h3><u>The first number, x, is equal to 955.</u></h3><h3><u>The second number, y, is equal to 191.</u></h3>
x = 5y
x - y = 764
Because we have a value for x, we can plug it into the second equation to solve for y.
5y - y = 764
Combine like terms.
4y = 764
Divide both sides by 4.
y = 191
Because we have a value for y, we can solve for x.
x = 5(191)
x = 955
This one is easy all you have to do is subtract the 2.25 by the 15 to get 12.75.
Total value of 100 measurements
100 * 23
2300
Total value of additional 50 measurements
50 * 27
1350
Total value of 150 measurements
2300 + 1350
3650
Average of 150 measurements
3650 / 150
24.3
25 > 24.3
Answer is B
Hello Again!
What you want to do first is add 4 to -4 and to -13. After doing so, you'll equation will look a little something like this...
-3x=9
You'll then want to divide both -3 and 9 by -3. After doing so, the equation will look like this...
x=-3
Your answer is x=-3
I hope this helps
