Toni measured the height of her bedroom doorway with a measuring tape. She measured the height as 171 cm. The doorway’s actual height is 182.8 cm.What is the percent error in Toni’s measurement? Round to the nearest tenth of a percent, if necessary.

A.
0.12%

B.
6.5%

C.
6.9%

D.
11.8%

Answers

Answer 1

Answer: First, subtract the two numbers.

$\sf182.8-171=11.8$

Now divide this to the actual measurement.

$\sf11.8/182.8=0.0645514223$

Multiply by 100:

$\sf0.0645514223*100=6.45514223$

So the percent error is approximately $\sf6.5\%$

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In the supply-and-demand schedule shown above, the equilibrium price for portable music players is _____.$100
$150
$250

Answers

Answer:

$150

Explanation:

Equilibrium price occurs at the point when the supply and demand of the product equals.

For example: Quantity of pens demanded in the market is 250, and Quantity supplied in the market is 250 as well.

With the same logic we can conclude that: At $150 the demand and supply of music players equals hence, it is the equilibrium price.

$150 because the supply number is equivalent to the demand number

Find the distance (-4,5) and (7,18)

Answers

Answer:

$√(290)\ units$

Step-by-step explanation:

The distance between points $(x_1,y_1)$ and $(x_2,y_2)$ is

$√((x_1-x_2)^2+(y_1-y_2)^2)$

Hence, the distance between points $(-4,5)$ and $(7,18)$ is

$√((-4-7)^2+(5-18)^2)\n \n=√((-11)^2+(-13)^2)\n \n=√(121+169)\n \n=√(290)\ units$

2/3,2/6,2/8 fractions in order from greatest to least

Answers

2/3,2/6,2/8
23 is the greatest because it has larger pieces
2/6 is the second greatest because it is a little smaller than thirds
2/8 is the least because it has the smallest pieces

Scott has -£16 in his bank account.Every week he gets paid £56 and spends £63.How much will scott have in his account after 2 weeks?

Answers

Remember:
Negative plus negative equals negative
Negative plus positive equals positive (under circumsatnces)
Postive minus positive equals positive (when the first number being subracted from second number is a larger number)
You do -16+56 which is 40 and so then 40-63, is -23 (for one week). So then you do 56-63 (for week two), you then get -7. So then you add -23+-7 and get -30 so he has -30£. In other words he is in debt by 30£.

Sandy orders 20 bread rolls for her party and three fifths of the rolls are whole wheat.What other fraction can represent the part of the rolls that are whole wheat?

Answers

If you multiply both the numerator and the denominator by 4 then 3/5 is equal to 12/20

The fraction that can represent the wheat portion is 3/5

Place the following fractions
on the number line.

-2/3 20/11. 3/10. -5/3

Answers

The fraction numbers that are placed on the number line in decimal form are given below.

What is a number line?

A number line refers to a straight line in mathematics that has numbers arranged at regular intervals or portions along its width. A number line is often shown horizontally and can be postponed in any direction.

The fraction numbers are given below.

-2/3, 20/11, 3/10, and -5/3

Convert the fraction number into a decimal number. Then we have

-2/3, 20/11, 3/10, and -5/3

-0.33, 1.18, 0.30, and - 1.67

The fraction numbers that are placed on the number line in decimal form are given below.

More about the number line link is given below.

brainly.com/question/13189025

#SPJ5

Answer and explanation:

$-(2)/(3) = -0.67$ (red line)