Answer:
<u>C</u>: <em>3x + 80 + 2x = 180</em>
Step-by-step explanation:
A straight line is equal to 180 degrees total the find x, you would add the number within the line and make it equal to 180.
3x + 80 + 2x = 180
add like terms
5x + 80 = 180
subtract 80 from each side
5x = 100
divide each side by 5
x = 20
Answer:
The expected number of defective batteries to be pulled out is 0.9, which rounded to the nearest integer gives a total of 1, that is, 1 of the 3 batteries is expected to be defective.
Step-by-step explanation:
Given that a box contains 3 defective batteries and 7 good ones, and I reach in and pull out three batteries, to determine what is the expected number of defective batteries, the following calculation must be performed:
3 + 7 = 100
3 = X
10 = 100
3 = X
3 x 100/10 = X
300/10 = X
30 = X
3 x 3/10 = X
0.9 = X
Therefore, the expected number of defective batteries to be pulled out is 0.9, which rounded to the nearest integer gives a total of 1, that is, 1 of the 3 batteries is expected to be defective.
The correct answer is D. The numerator and the denominator must be divided by the same number, and 16 is the highest number they can both be divided by. It would simplify down to 3/4.
All you have to do, is combine like terms. Let's go through it:
Arrange it so you can easily combine like terms:
So, your answer for the sum is 1) 7x² - 10x + 2
Answer:
7/8 and 5/6 are not equivalent
Step-by-step explanation:
Fractions are equivalent when you put them into your calculator and it gives the same number.
7 ÷ 8 = 0.875
5 ÷ 6 = 0.8333...
Since 0.875 ≠ 0.8333, 7/8 and 5/6 are not equivalent.
If you test for the other pairs, they will have the same decimal.
1/9 = 2/18 = 0.111...
3/16 = 9/48 = 0.1875
6/15 = 4/10 = 0.4
