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3 years ago

The double number line shows the approximate number of ounces in a certain number of pounds:

Mathematics

2 answers:

olasank [31]3 years ago

8 0

Answer: 144 ounces

Step-by-step explanation:

Ira Lisetskai [31]3 years ago

6 0

Answer:

B- 160

Step-by-Step Explanation:

I did it before and I was rite, so trust me

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At the beginning of the semester students reported that they spend an average of 5 hours per day watching television, decreasing

Katyanochek1 [597]

Answer:

(a) $X(t)=X(0)+\Delta X*t=5-0.5*t$

(b) $X(t)=X(0)+\Delta X*t=1+0.5*t$

Step-by-step explanation:

a) For the students, they start at X(0)=5 h and ΔX=-0.5 h/week.

We can write

$X(t)=X(0)+\Delta X*t=5-0.5*t$

b) For the professors, they start at X(0)=1 h and ΔX=+0.5 h/week.

We can write

$X(t)=X(0)+\Delta X*t=1+0.5*t$

c) The seew which they will be watching the same amount of hours will be the 4th week.

$X(t)=5-0.5*t=1+0.5*t\\\\5-1=(0.5+0.5)*t\\\\t=4\, weeks$

The amount of hours will be

$x(4)=1+0.5*4=1+2=3\,hours$

7 0

3 years ago

Craig examines the effect of different genres of music, such as jazz, rock, rap, on task performance. Which type of measurement

ryzh [129]

Answer:

Nominal

Step-by-step explanation:

Data can be divided into 2 types:

Qualitative Data
Quantitative Data

Qualitative data represent some attribute or characteristic and cannot be measured or calculated. This type of data uses Nominal or Ordinal level of measurement.

Quantitative data is the data which can be measure or calculated. This type of data is expressed in Ratio or Interval scale.

Different genres of music represent an attribute, hence the data is Qualitative. Qualitative data which can put into some order is at Ordinal scale of measurement, while if the data simply represent the name or attributes it would be at Nominal Level.

Different genres of music cannot be put into some order and are just names, hence the measurement scale would be Nominal.

6 0

3 years ago

5x - 2y = 15 ,2x + 4y = 12 solve the system

Rus_ich [418]

Answer:

y = 5/2x - 15/2, y = -1/2x +3

Step-by-step explanation:

Slope intercept formula (y=mx+b)

5 0

3 years ago

there are some roses,lilies, and orchids in the vase. The number of roses is twice the number of lilies and the number of orchid

Rudiy27

Answer:

The number of roses is 16

The number of lilies is 8

The number of orchids is 21

Step-by-step explanation:

Let

x-----> the number of roses

y-----> the number of lilies

z-----> the number of orchids

we know that

x=2y ----> y=x/2 ----> equation A

z=x+5 ---> equation B

x+y+z=45 ----> equation C

substitute equation A and equation B in equation C and solve for x

x+(x/2)+(x+5)=45

(5/2)x=45-5

(5/2)x=40

x=40*2/5

x=16 roses

<em>Find the value of y</em>

y=x/2 ----> y=16/2=8 lilies

Find the value of z

z=x+5 -----> z=16+5=21 orchids

therefore

The number of roses is 16

The number of lilies is 8

The number of orchids is 21

3 0

3 years ago

What is the product of the polynomials below?

Reika [66]

The answer is d. when x by x^2 and then by 3x and then by -3. after multiply -7 by x^2 and then by 3x and then by -3. after that add the x's.

6 0

2 years ago