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4 years ago

Solve 1/3(2x - y) = z for x

Mathematics

1 answer:

tatiyna4 years ago

4 0

Answer:

x=3z+y/2

i hope this answers your question

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A company conducted a survey to see whether its new toothpaste was morepopular with children or adults. Of the children surveyed

Naily [24]

Given: The information provided in the table shown

To Determine: From the options provided, the correct option that best describe the information given in the table

Solution

Given that 28% of the children used toothpaste. From the table

$Children(toothpaste)=\frac{0.07}{0.25}=\frac{7}{25}\times100=28\%$

Let us calculate the percentage of adult that used toothpaste

$Adult(toothpaste)=\frac{0.08}{0.75}=\frac{8}{75}\times100=10.667\%\approx11\%$

Hence, a smaller percentage of adults (about 11%) use the toothpaste.

The correct option is OPTION C

4 0

2 years ago

Find the interquartile range for a data set having the five-number summary: 3.4, 10.8, 16.7, 23.1, 31.5

natita [175]

.Answer:

D. 12.3

Step-by-step explanation:

Arrange the data in increasing order

3.4, 10.8, 16.7, 23.1, 31.5

⇒This is an odd set of numbers, to find the interquartile range you include the median in both quartiles.

Locate the median/center value

3.4, 10.8, 16.7, 23.1, 31.5

Find lower half and find the median

lower half values⇒3.4, 10.8, 16.7

Median=Q1=10.8

Find the upper half and find

upper half= 16.7,23.1, 31.5

median= 16.7,23.1,31.5

Q3=23.1

Interquartile range=Q3-Q1

23.1-10.8=12.3

5 0

3 years ago

There are 80 picnic tables at the park. During the first weekend of the summer, there were 40 available tables. During the secon

Aleksandr [31]

Answer:

Step-by-step explanation:

We can see a pattern of 1/2 as the week progresses. 1/2 of 80 is 40, 1/2 of 40 is 20, 1/2 of 20 is 10, so for the fourth week 1/2 of 10 is 5.

8 0

4 years ago

Frank has a collection of 1,320 baseball cards. Celia's collection has 4/3 times as many cards as frank's collection. How does t

SOVA2 [1]

Celia's collection is 440 cards greater than Frank's collection.

6 0

3 years ago

Alla [95]

Answer:

the slope is 3/4

Step-by-step explanation:

Randomly pick two points

point 1 (0, -1)

point 2 (4, 2)

gradient = (y2-y1)/(x2-x1)

m = (2-(-1))/(4-0)

m = 3/4

4 0

4 years ago