Answer:
A. 2(x + 9) = 8
Step-by-step explanation:
To solve this problem, we proceed as follows:
- We call "x" the number picked up by Amy:

- Amy then adds 9 to this number, so we get:

- Then, we multiply this sum by 2, so we get:

- Finally, Amy says that this number is equal to 8:

So the correct equation is
A. 2(x + 9) = 8
We can even solve it to find the number. We get:

Answer:
D
Step-by-step explanation:
Survey is the easiest, best, and fastest way o collect data.
(especially from if it's large)
<h2>I hope this helped!!</h2>
Answer:
Approximately 
Step-by-step explanation:
we know that
The volume of a cylinder (barrel) is equal to

in this problem we have

-----> the radius is half the diameter
substitute

<u>Convert to gallons</u>

3 only
<span>7 only </span>
<span>1 only </span>
<span>1, 4, and 7 </span>
<span>do you mean which digit is added to 371 so that it is divisible by 3 </span>
<span>test for 3, sum of digits divisible by 3 </span>
<span>3 + 7 + 1 = 11 </span>
<span>if you add 3, 11 + 3 = 14 not divisible by 3 </span>
<span>if you add 7, 11+ 7 = 18 divisible by 3 </span>
<span>if you add 1, 11+ 1 = 12 divisible by 3 </span>
<span>if you add 1, 4, 7 divisible by 3 </span>
Answer:
80
Step-by-step explanation:
First move like terms to one side:
x/2=25+15
Notice that the sign (+ or -) changes when we switch it to the opposite side
x/2=40
Multiply both sides by 2...
x=80