Explain how showing fractions with models and a number line are alike and different

Answers

Answer 1

Answer: In order to find the distance between -61.5 and -23.4 on the number line, you just have to subtract either the greater value to lesser value or lesser value to the greater value. It doesn't matter when you get a negative difference because the distance should be the absolute value of the difference of two points on a number line.
Here's how you should do it.
(-61.5) - (-23.4) = -61.5 + 23.4 = l-38.1l = 38.1
or
(-23.4) - (-61.5) = -23.4 + 61.5 = l38.1l = 38.1

As you can see above, I tried to subtract the two numbers in different order, and the result is still the same. Just make sure to get the absolute value of the answer because the distance should always be in positive form.

Therefore, the distance between -61.5 and -23.4 is 38.1

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HELPCookies are on sale! Today each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost you $2.80!equation answer

16 is 20% of what number

Answers

WORK:
$(16)/(unknown)$ ÷ $(20)/(100)$
$(20)/(100)$ = $(2)/(10)$
(You get $(2)/(10)$ from $(20)/(100)$ by dividing the numerator and denominator by 10)
$(16)/(unknown)$ ÷ $(2)/(10)$ = $(16)/(80)$
You get $(16)/(80)$ because you multiply the numerator 2 by 8 to get 16, so you have to multiply the denominator 10 by 8 as well to get 80.
ANSWER:
16 is 20% of 80

16 is 20 percent of the number 80.

How to find percentage?

In mathematics, a percentage is a number or ratio that can be expressed as a fraction of 100.

Therefore, let's find the number 16 is 20% of .

Let

x = the number

Therefore,

20% of x = 16

20 / 100 × x = 16

20x / 100 = 16

cross multiply

1600 = 20x

divide both sides by 20

x = 1600 / 20

x = 80

Therefore, the number is 80

learn more on percent here: brainly.com/question/90937

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The points scored by a basketball team in its last 6 gamesare shown. Use these data for 7 and 8.Points Scored73 77 85 84 37 1157. Find the mean score and the median score.MeanMedians. Which measure better describes the typical number of points scored?Explain.

Answers

the median is 73 and the mean is 60.6 (rounded to the nearest tenth). Mean better describes the typical number of points scored.

What is 2 times 1/78 equal to

Answers

The answer is 0.025641025641026

53/200 write the fraction or mixed number as a percent ....can u please explain how to do the problem....

Answers

$(53)/(200)\cdot100\%=(53)/(2)\%=26.5\%$

You are building a birdhouse that will have a volume of 128 in^3. the birdhouse will have the dimensions shown a. write a polynomial that represents the volume of the birdhouse

b. what are the dimensions of the birdhouse ?

show your work please

Answers

$a.\nV-the\ volume\n\nV(w)=4\cdot w\cdot (w+4)=4w^2+16w\ [in^3]\n\nb.\nV=128\ in^3\ \ \ \Rightarrow\ \ \ 4w^2+16w=128\ \ \ \Rightarrow\ \ \ 4w^2+16w-128=0\ /:4\n\nw^2+4w-32=0\n\nw^2+4w+4-36=0\ \ \ \Leftrightarrow\ \ \ (w+2)^2=36\n\nw+2=6\ \ \ \ \ or\ \ \ \ \ w+2=-6\n\nw=4\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ w=-8\ \ \ \ (and\ \ \ w>0)\n\nw=4\ \ \ \Rightarrow\ \ \ w+4=8\n\nAns.\ the\ dimensions\ of\ the\ birdhouse:\ \ 4\ in,\ 4\ in,\ 8 \ in$

Answer: Dimensions are 4 in, 4 in, 8 in

Hope this helped

You estimate that a baby pig weighs 20 pounds. The actual weight of the baby pig is 16 pounds. Find the percent error

Answers

Answer:

Percentage error is 25%.

Step-by-step explanation:

Given : Estimated weighs of a baby pig = 20 pounds

Actual weight of the baby pig = 16 pounds

To find : The percentage error

Solution : Formula to find percentage error

$\frac{\text{Estimated weight}- \text{Actual weight}}{\text{Actual weight}}* 100$

Putting values in formula,

$=(20-16)/(16)* 100$

$=(4)/(16)* 100$

$=(1)/(4)* 100$

$=25%$

Therefore, Percentage error is 25%.

Your estimate of the baby pig's weight is 2 pounds. However the actual weight of it is only 16 pounds.
Let's solve for the percentage error of this.
=> 20 - 16 = 4 pounds
=> 4 / 16 = 0.25
=> 0.25 * 100% = 25%
Thus, you added 25% of the baby pig's weight

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