The answer to this question is the second one: "In Step 2, she divided 8 by 100 instead of 100 by 8, so she cannot multiply the numerator by the factor." This is because the percentage equivalent to 1/8 is 12.5%, which you get by cross-multiplying 1/8 and ?/100. Basically, you multiply 1 with 100 (which is 100) and 8 with the unknown variable (8x). You get something that looks like 100 = 8x. Lastly, you divide 8 into both sides, which gets you 12.5. Therefore, your answer is Harriet's error is in Step 2.
<span>Here's another way to look at it.Percent means 'out of one hundred' so....think of it like this...one out of eight is how many out of 100? 1/8 = ?/100 From here you can multiply both sides by 100. On the right side, the 100 on the top will cancel the 100 on the bottom of the fraction because 100/100 = 1 and 1 times anything doesn't change that thing's value. So ?/100 times 100 = just ?On the left side of the equation, we get100 times 1/8. 100 times 1 is 100 so we're left with 100 / 8. We get the answer 12.5 percent. A double check:1 divided by 8 = .125When we substitute the 12.5 for the ? above,12.5 divided by 100 = .125
</span> 1/ 8 = 0.125 = 12.5 % / Same as converting 1/8 of a dollar to cents
First convert it to the decimal number, then Multiply by 100 ( shift decimal point twice to the right) and insert %( divide by 100) .
Remark
That was well worth doing. Desmos gave you the answer to the graph. Unfortunately I can only give you the correct graph. You will have to figure out from the choices which one is the correct answer -- or edit it so I can see what the rest of the question is.
Graph
The red one is f(x) is x + 3 {x <= -2}
The blue one is f(x) is x^2 - 1 {-2 <x <1} Notice the gap at 2. It is not continuous
The green one is f(x) is log_2(-x + 3) {1 <=x < 3} and there is a gap between the blue and green one.
Answer:
Part D is correct
Step-by-step explanation:
Find a common multiplier then divide ex. 21/27 = 7/9
Answer:
20
Step-by-step explanation:
The area of a circle is equal to pi*radius^2
We can then write this as
314.1592=π*r^2
We then divide pi to get
100=r^2
take the square root and you find that the radius equals around 10
The diameter is always equal to the radius times two which means that the diameter is 20
hope this helps
