Q4 - Exam prep: Missing values
Audrey measures all 7 pencils in her pencil case and writes the first 6 lengths down.
12.4 cm, 12.6 cm, 13 cm, 13.4 cm, 13.5 cm, 13.3 cm
Audrey calculates the mean length of all 7 pencils to be 13.1 cm.
Find the length of the missing pencil.
cm
[2]

Answers

Answer 1

Answer:

the missing pencil length is 13.5 cm

Step-by-step explanation:

The computation of the length of the missing pencil is shown below:

Let us assume the missing pencil be x

Now

(12.4 cm + 12.6 cm + 13 cm + 13.4 cm + 13.5 cm + 13.3 cm + x) ÷ 7 = 13.1 cm

(78.2 cm + x) ÷ 7 = 13.1 cm

78.2 cm + x = 91.7 m

So, x would be

= 91.7 cm - 78.2 cm

= 13.5 cm

hence, the missing pencil length is 13.5 cm


Related Questions

10 NEED HELP ASAP WILL GIVE BRAINLY

Answers

Answer: Choice A)  8x+2 = 14x-76

==============================================================

Explanation:

Since lines A and B are parallel, this makes the corresponding angles (8x+2) and (14x-76) to be equal.

So the equation we need to solve is 8x+2 = 14x-76

If you solve that equation, you should end up with x = 13. Plugging x = 13 into either 8x+2 or 14x-76 would lead to the result of 106. So each corresponding angle is 106 degrees.

Answer:

8x+2=14x-76

(the first answer)

Step-by-step explanation:

Corresponding Angles

Mrs. Alvarez is buying pizza for her son’s baseball team after a game. The team has 13 players, and each player eats two slices of pizza. Each slice of pizza costs $4.90. How much did Mrs. Alvarez pay in all for the pizza?

Answers

Mrs. Alvarez payed $127.40

Find the unit rate. Round to the nearest hundredth, if necessary.
$250 for 17 ft2
The unit rate is
Juft?
?

Answers

Answer:

240

Step-by-step explanation:

it says I have to explain dunno how soon

pls help w fractions math question

Answers

Answer:

 2 5/6 is greater so Jenna read more

Step-by-step explanation:

Answer:

Antoine

Step-by-step explanation:

u see 8hrs divided by 1.25 hrs equals 6.4 Chapters and 6hrs/ 17/6 = 2.12 and that x3 = 6.36 as u can see 6.4 > 6.36 there u o have a good day bye please give brainliest im only 9 no cap

Quadrilateral GHIJ has coordinates G(5, 1), H(4, -3), I(6, -1), and J(2, 1). If the quadrilateral is reflected over the line y = -x, what are the coordinates of G'?​

Answers

Answer:

Where is the diagram

Step-by-step explanation:

point D(9,-8) is reflected to D'(9,8)

Answers

Answer:

reflected across the x axis

Step-by-step explanation:

help please! ill mark brainliest

Answers

Answer:

90deg

Step-by-step explanation:

If the angles are supplementary, that means mA + mB = 180*

we know that

mA = (2x + 8)deg

mB = (2x + 8)deg = mA

mA + mB = 180deg

mB + mB = 2mB = 180deg

mB = 90deg

Note, that we did not need to compute x even, because the angles were the same.

f (x)=x2. what is g(x)?​

Answers

Answer:

5x^2

Step-by-step explanation:

5x^2 I pretty sure that’s the answer

Question 2
O
Simplify the expression by combining like terms
Expression:-12x - 4x - 72 +10y3
Like Terms:
I
Simplified Expression:
> |

Answers

Answer:

Step-by-step explanation:

So you are combining the numbers that look alike practically..

They are asking for how many like term, so you would put how many numbers you see that are different.

-12x - 4x - 72 + 10y^3

-16x - 72 + 10y^3

That is as far as you could go.

There are 3 numbers that look different.

When I say this I mean that one number has no variable, one number has a variable, and another number has a variable and it’s cubed.

So that would be 3 like terms.

And for the simplified form, it’s

-16x - 72 + 10y^3

Hope this helps

I WILL GIVE BRAINILEST IF CORRECT VERY EASY QUESTION
Wendy and Mini earn $49 per week for delivering magazines. Wendy worked for x weeks and earned an additional total bonus of $18. Mini worked for y weeks. Which expression shows the total money, in dollars, that Wendy and Mini earned for delivering magazines?

67x + 49y
49x − 18 + 49y
49x + 18 + 49y
49x + 67y

Answers

Answer:

49x+18+49y

Step-by-step explanation:

PLEASE ANSWER!
The function shown is in the form y= x^2 + k. Determine the value of k.

A. -1
B. 0
C. 1
D. -1/2

Answers

I think the answer is - 1. I'm not sure

Do you like forgs???

Answers

Answer:

there ok

Step-by-step explanation:

Can someone tell me which equation this is
1. f(x)= 1/4x +4
2. y=1/2x +4
3. f(x)=-2/3 +4

Answers

Answer:

Graph f(x)=1/4x-3. f(x)=14x−3 f ( x ) = 1 4 x - 3. Rewrite the function as an equation. y=x4−3 y = x 4 - 3. Use the slope-intercept form to find the slope and y-intercept. Tap for more steps. ... Any line can be graphed using two points. Select two x ...

Step-by-step explanation:

any one knows and can help me ​

Answers

Answer:

2&4=115°

1&3=65°

Step-by-step explanation:

Help please Brainliest if Correct!!

Answers

Answer:

it would be 17

Step-by-step explanation:

rounding just means adding 10

lillian works 7 hours each day for 5 days a week. she earns £420 each week. how much does she earn per hour?


need ASAP I will mark beainlist for correct t answer​

Answers

Answer:

Lillian gets paid $12 an hour.

Step-by-step explanation:

I multiplied 7 times 5, which gives you 35. The you divide 420 by 35, which then gives you 12 dollars

Read png for question`e

Answers

Answer: 5

Step-by-step explanation: You can convert 3 and 1/3 to 10/3. Now you have (10/3) / (2/3). Dividing by a fraction is the same as multiplying by the reciprocal of the fraction, so you can do (10/3) * (3/2) to get 5

Answer:

5

Step-by-step explanation:

3+1/3=10/3

(10/3)/(2/3)

multiply equation by the reciprocal of the denominator

so that the denominator=1

(10/3)(3/2)

multiply numerator and denominator accordingly

30/6=5

Hope that helps :)

x + 10 + 59

Please help with step by step

Answers

Answer:  x + 69

Step-by-step explanation: Hope this helps

Add 10 and 59 because they are like terms and can be combined. You are left with x+69 because you can’t do anything further with the x.

Michelle fills up her tank at the gas station. She puts 13.5 gallons of gas in her car, and it cost $34.60. What is the unit rate she paid for gas, in dollars per gallon?​

Answers

9514 1404 393

Answer:

  $2.563

Step-by-step explanation:

To find dollars per gallon, divide dollars by gallons.

  $34.60/(13.5 gal) ≈ $2.563 /gal

Michelle paid about $2.563 per gallon.

__

Additional comment

We have reported the price to the nearest 1/10th cent, as that is the way gas prices are usually posted.

Solve the equation. 2t +8= -10 solve for t

Answers

Answer:

t= -9

Step-by-step explanation:

Answer:

Step-by-step explanation:

2t+8=-10, subtract 8 from each side

2t=-18, divide each side by 2

t=-9

what is the answer to question 2

Answers

Answer:

The 3rd one, they followed animal migrations to get food

who tryna be freinds

Answers

Answer:

I'm down but make me brainiest

Step-by-step explanation:

Answer:

sure

Step-by-step explanation:

Solve for x
X= ?
PLEAS HELP WITH THIS QUESTION ASAP

Answers

Answer:

[tex]1.66[/tex]

or 2/3

Answer:

2/3

Step-by-step explanation:

Since triangles ADE and ABC are similar we can calculate the value of x using similarity ratio

AD/AB = ED/CB

3/2 = 1/x cross multiply expressions

3x = 2 divide both sides by 3

x = 2/3

Which equation gives the sum of...?

Answers

Answer:

your answer will be C

Step-by-step explanation:

have a nice day/night bye!!

C will be your answer

2(9 + 5k) pls help me

Answers

Answer:

10k + 18

Step-by-step explanation:

PLS HELP!!!

A circle is subdivided by a central angle of 90 degrees. The length of the subtended arc is 25 mm. What is the radius of the circle?

A:
[tex] \frac{50}{\pi} mm[/tex]
B:
[tex] \frac{\pi}{50} mm[/tex]
C:
[tex] \frac{25\pi}{2} mm[/tex]
D:
[tex]25mm[/tex]

Answers

Answer:

[tex](\text{A})\:\frac{50}{\pi}\:\text{mm}[/tex]

Step-by-step explanation:

This the arc is 90 degrees and there are 360 degrees in a circle, it makes up [tex]\frac{90}{360}=\frac{1}{4}[/tex] of the circle. Therefore, its length will be [tex]\frac{1}{4}[/tex] of the circumference. Since its length is 25 mm, the circumference is then [tex]25\cdot 4=100\:\text{mm}[/tex]. The circumference of a circle is given by [tex]2\pi r[/tex], where [tex]r[/tex] is the radius of the circle. Therefore, we can set up the following equation and solve for [tex]r[/tex]:

[tex]2\pi r=100[/tex]

Solving, we get:

[tex]2\pi r=100,\\\\r=\frac{100}{2\pi},\\\\r=\boxed{(\text{A})\:\frac{50}{\pi}\:\text{mm}}[/tex].

Which of the four statements is true and also write a one-step inequality as an example of when you would "flip" the sign.

Answers

Step-by-step explanation:

There are 5 types of Inequality sign :

1. = read  '' equals to ''

2. > read '' greater than ''

3. < read '' less than ''

4. ≥ read '' greater than or equals to ''

5. ≤ read '' less than or equals to ''

Example -

1. 2 = 3   ( 2 is equals to 3 )

2. 3 > 2 ( 3 is greater than 2 )

3. 2< 4  ( 2 is less than 4 )

4. 3 ≥ 2 ( 3 is greater than or equals to 2)

5. 2 ≤ 4 ( 2 is less than or equals to 4 )

One - step inequality :

Addition and Subtraction Properties of Inequality -

If a > b, then a + c > b + c

If a > b, then a − c > b − c

Multiplication and Division Properties of Inequality -

If a > b, then ac > bc, if c > 0

If a > b, then ac < bc, if c < 0

If a > b, then [tex]\frac{a}{c} > \frac{b}{c}[/tex], if c > 0

If a > b, then [tex]\frac{a}{c} < \frac{b}{c}[/tex],, if c < 0

The inequality x > y can also be written as y < x. The sides of any inequality can be switched as long as the inequality symbol between them is also reversed(or flip ).Solving inequalities is same as solving equations, except you have to reverse( or flip ) the inequality symbols when you multiply or divide both sides of an inequality by a negative number.

Find the gcf of 20,50

Answers

Answer:

10

Step-by-step explanation:

Answer:

The GCF is 10

Step-by-step explanation:

The following factors that fit into 20 and 50 are as follows

1

2

5

10

We can go higher than 10, BUT, we would have to multiply that number by a decimal.

Therefore, 10 is greatest common factor

help me please i have to pass it

Answers

Answer:

<

_

Step-by-step explanation:

Just some basic logic.

H < 46 It’s the 4th option
_

Brian invests £1850 into his bank account. He receives 2.7% per year simple interest. How much will Brian have after 3 years? Give your answer to the nearest penny where appropriate.

Answers

Answer:

£1999.85

Step-by-step explanation:

A = P(1 + rt)

Where:

A = Amount after t years

P = Initial amount invested = £1850

r = Interest rate = 2.7%

t = Time in years = 3 years

Calculation:

First, converting R percent to r a decimal

r = R/100 = 2.7%/100 = 0.027 per year.

Solving our equation:

A = £1850(1 + (0.027 × 3))

A = £1999.85

Therefore, Brian will have £1999.85 after 3 years.

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