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Mice21 [21]
3 years ago
12

What is the missing value in this table of equivalent ratios?

Mathematics
1 answer:
slava [35]3 years ago
4 0

Answer:

a

Step-by-step explanation:

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the bases of a frustum of a cone have radii 1 1/3 and 2. The height of the frustum is 2. What were the dimension of the original
Sedbober [7]

One of the major advantage of the two-condition experiment has to do with interpreting the results of the study. Correct scientific methodology does not often allow an investigator to use previously acquired population data when conducting an experiment. For example, in the illustrative problem involving early speaking in children, we used a population mean value of 13.0 months. How do we really know the mean is 13.0 months? Suppose the figures were collected 3 to 5 years before performing the experiment. How do we know that infants haven’t changed over those years? And what about the conditions under which the population data were collected? Were they the same as in the experiment? Isn’t it possible that the people collecting the population data were not as motivated as the experimenter and, hence, were not as careful in collecting the data? Just how were the data collected? By being on hand at the moment that the child spoke the first word? Quite unlikely. The data probably were collected by asking parents when their children first spoke. How accurate, then, is the population mean?

7 0
2 years ago
Read 2 more answers
What are 2 methods for finding the sale price of an item that is discounted 30%?
anyanavicka [17]
First you have to know the price of item.

EX: Say a candy car costs $1.50. 
The candy bar was marked down 30%.
$1.50 x 30/100 = $.45
The item will decrease $.45.
$1.50 - $.45 = $1.05 





6 0
3 years ago
bobby’s christmas list had 3 more than twice as many items on it than johnny’s list. johnny asked for 8 fewer items than bobby.
Nataly [62]

Answer:

<em>Johnny had </em><em>5</em><em> items and Bobby had </em><em>13</em><em> items.</em>

Step-by-step explanation:

Let us assume that Johnny has x items and Bobby has y items in their list.

Bobby had 3 more than twice as many items on it than Johnny. So,

\Rightarrow y=3+2x  ----------1

Johnny asked for 8 fewer items than bobby. So,

\Rightarrow y-8=x  -----------2

Putting the value of x from equation 2 in equation 1, we get

\Rightarrow y=3+2(y-8)

\Rightarrow y=3+2y-16

\Rightarrow 2y-y=16-3

\Rightarrow y=13

Putting the value of y in equation 2,

\Rightarrow 13-8=x

\Rightarrow x=5

So, Johnny had 5 items and Bobby had 13 items.

3 0
3 years ago
In Mr.Kleins class, 40% of the students are boys. What decimal represents the portion of the students that are girls?
Sidana [21]
Percent that are  girls = 100-40  = 60%
As a decimal 60% is 0.6.
4 0
3 years ago
X + 3 &lt; 15<br> what is 4
professor190 [17]

Answer:

X = > 12 because 15 - 3 = 12 and if X was more than 12 it would be wrong.

Step-by-step explanation:

6 0
2 years ago
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