Joyce's dad packs her lunch and always packs a yogurt. Joyce knows there are five yogurts in the refrigerator: one raspberry, two strawberry, one blueberry, and one vanilla. Her dad usually reaches into the refrigerator and randomly grabs a yogurt. which flavor is she most likely to have in her lunch today?

Considering the definition of percent of error, the Stephanie’s percent of error in this case is 5.042%.

Percent of error is a measure of how inaccurate a measurement is, standardized based on the size of the measurement.

In other words, the percent of error allows knowing the differences between the estimated value and the real value. The error may be due to the measurement method (tool or human error) or due to approximations used in the calculation (for example, rounding errors).

To calculate the percent of error you must:

Therefore, the expression for calculating the percent of error is

percent of error= [|real value - estimated value|÷ real value]×100

In this case, you know:

Replacing in the definition of percent of error:

percent of error= [|8.33 pounds - 8.75 pounds|÷ 8.33 pounds]×100

Solving;

percent of error= [|-0.42 pounds|÷ 8.33 pounds]×100

percent of error= [0.42 pounds÷ 8.33 pounds]×100

percent of error= 0.05042×100

percent of error= 5.042%

Finally, the percent of error in this case is 5.042%.

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Answer:

3/4

Step-by-step explanation:

hope this helps. I have to wrote this random think so it can be 20 characters hope this helps enjoy

9514 1404 393

Answer:

Step-by-step explanation:

To find miles per hour, divide miles by hours:

  (15 mi)/(3 h) = 15/3 mi/h = 5 mi/h

__

To find distance, multiply speed by time.

  (5 mi/h) × (10 h) = 50 mi

Answer:

44 yards

Step-by-step explanation:

Formula :

divide the length value by 3

9514 1404 393

Answer:

  B.  26

Step-by-step explanation:

All acute angles in the figure are congruent. All obtuse angles in the figure are congruent. All of the even-numbered angles are acute and have the measure 26.

  m∠16 = 26

The speed of first train is 364 miles per hour and the speed of second train is 359.5 miles per hour .

In the question,

it is given that ,

the sum of speed of two trains = 723.5 miles per hour

let the speed of the first train = x miles per hour

let the speed of the second train = y miles per hour ,

also given that , the speed of the first train is 4.5 mph faster than that of the second train , which means

x = y + 4.5 .

the sum is 723.5 ,

so , the equation is

x + y = 723.5

y + 4.5 + y = 723.5

2y + 4.5 = 723.5

2y = 719

y = 719/2

y = 359.5

So , x = 359.5 + 4.5 = 364 .

Therefore , The speed of first train is 364 miles per hour and the speed of second train is 359.5 miles per hour .

The given question is incomplete , the complete question is

The sum of the speed of the two trains is 723.5 miles per hour. if the speed of the first train is 4.5 mph faster than that of the second train, find the speeds of each train ?

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Answer:

hold shift then press the lil right  arrow next to the question mark

Step-by-step explanation:

Answer:

shift  +  >

Step-by-step explanation:

Hope this helps

The conditional probability for this problem is given as follows:

C. P(A|B) = 2/5 = 0.4 = 40%.

The parameters that are needed to calculate a probability are listed as follows:

Then the probability is calculated as the division of the number of desired outcomes by the number of total outcomes.

For this problem, we have that 5 students play soccer, and of those, 2 play basketball, hence the conditional probability is given as follows:

C. P(A|B) = 2/5 = 0.4 = 40%.

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Answer:

I say B or A but I think B

Step-by-step explanation:

So you would want to put 1.8/16 to find B and 1.65/12 to find A which ever one is lowest is anwser

Answer:

Brand B

Step-by-step explanation:

It has the lowest price per ounce at about 11 cents per ounce

Answer: (3,1)

Step-by-step explanation: Use the midpoint formula

Number of 20-cent coins in the box are 33.

1. Let's assume the number of 20-cent coins to be x and the number of 50-cent coins to be y.

2. We can set up two equations based on the given information:

  - x + y = 54   (since the total number of coins in the box is 54)

  - 0.20x + 0.50y = 20.70   (since the total value of all the coins is $20.70)

3. We can multiply the second equation by 100 to get rid of the decimals:

  - 20x + 50y = 2070

4. Now, we can use the first equation to express y in terms of x:

  - y = 54 - x

5. Substitute the value of y in the second equation:

  - 20x + 50(54 - x) = 2070

6. Simplify and solve for x:

  - 20x + 2700 - 50x = 2070

  - -30x = -630

  - x = 21

7. Substituting the value of x back into the first equation:

  - 21 + y = 54

  - y = 33

8. Therefore, there are 21 20-cent coins and 33 50-cent coins in the box.

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Answer:

x = 1.432

Step-by-step explanation:

58x + 21.9 = 105

=> 58x = 105 - 21.9

=> 58x = 83.1

=> x = 83.1/58

=> x = 1.432

Answer:

VUS, UST

Step-by-step explanation:

Answer:

She gets $114 to work at grocery store for 6 hours and $200 at the nursery.

Answer: $294

20g+19

Step-by-step explanation:

20*9=180

19*6=114

180+114=294

Answer:

2.5 oz

Step-by-step explanation:

Convert 2.8 lb to oz. This is 40 oz. Now divide 40 oz by 16. You should get 2.5 oz.

I am 99% sure this is correct.

Hope it helps!

Answer: Choice (A)

Step-by-step explanation:

#Tip: Use the process of elimination when dealing with a multiple choice question-

What is a perpendicular line? Two distinct lines intersecting each other at 90°, or a right angle.

What is a parallel line? Lines in a plane that are always the same distance apart, and will never intersect.

Step 1: Identify the Given-

Step 2: Eliminate what does not apply to what you found-

Choice (A): True

Lines TU and MN are perpendicular. Lines MN and PQ are parallel

Choice (B): False

Lines PQ and TU are perpendicular. Lines PQ and RS are parallel

Choice (C): False

Lines MN and PQ are parallel. Lines UT and RS are perpendicular

Choice (D): False

Lines MN and RS perpendicular. Lines MN and PQ are perpendicular

From the image given, inequality is -2≤x<8 from x≥-2, x<8. It serves as a concrete example of inequality.

Broadly speaking, a mathematical phrase that defines an order relationship between two integers equivalent algebraic expressions, showing whether one is bigger than, equal to, smaller than, or smaller than and equal to the other.

The sentence "5x - 4 > 2x + 3" seems like an equation because the mathematical sign for "equals" has indeed been replaced by an arrowhead. It serves as a concrete example of inequality. From the image given, inequality is -2≤x<8 from x≥-2, x<8.

Therefore, from the image given, inequality is -2≤x<8 from x≥-2, x<8.

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Answer: C

Step-by-step explanation:

Y=2x-4

8=2(6)-4

8=12-4

8=8 Correct

The probability that a student chosen randomly from the class plays basketball or baseball is equal to the fraction 20/27.

The probability of an event occurring is the fraction of the number of required outcome divided by the total number of possible outcomes.

We shall represent the number of students who plays basketball and baseball with the letter x so that;

students who play only basketball = 11 - x

students who play only basketball = 13 - x

11 - x + x + 13 - x + 5 = 27

29 - x = 27

x = 29 - 27 {make x the subject}

x = 2

students who play only basketball = 11 - 2 = 9

students who play only basketball = 13 - 2 = 11

probability that a student chosen randomly from the class plays basketball or baseball is derived as:

9/27 + 11/27

20/27 {expressed as a single fraction}

Therefore, probability that a student chosen randomly from the class plays basketball or baseball is equal to the fraction 20/27.

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Answer:

G

Step-by-step explanation:

The length of 2 sides and an angle between them is given A = ½ × b × c × sin(α) If two angles and the length between them is given A = For an isosceles right triangle A = ½ × a.

If the height (i.e. the altitude) and base of an isosceles triangle are known, the area can be easily calculated. The area of the isosceles triangle is calculated by multiplying the height by the base and dividing by two. As a result, an isosceles triangle has two equal sides and two equal angles. The name is derived from the Greek words iso (same) and skelos (skull) (leg). An equilateral triangle has all of its sides equal, whereas a scalene triangle has none of its sides equal.

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1.

9 (3+2)

We have to distribute number 9 in the parenthesis, multiply each term in the parenthesis by 9:

9(3)+9(2)

27+18

45

2.

11(4-1)

11(4)+11(-1)=44-11=33

3.

12(7+7)

12(7)+12(7)

84+84

168

4.

5 (4+8)

5(4)+5(8)

20+40

60

5.

10(9-5)

90-50

40

Answer:

16X^2 - 8x

Step-by-step explanation:

A = L x W

L = x + 5 + 3x + 4x - 9 = 8x - 4

W = 2x

(8x - 4) (2x) = 16x^2 - 8x

The quadratic equation that gives the height of the rocket, h = 156·t - 16·t² is evaluated at h = 60 feet to give the two times the rocket's height is 60 feet as 0.40 seconds and 9.35 seconds.

A quadratic equation is an equation of the second degree that can be expressed in the form; a·x² + b·x + c = 0, where the letters, a, and b represents the coefficients of x and c is a constant.

The initial velocity of the rocket = 156 ft./s upwards

The given equation of the rocket is: h = 156·t - 16·t²

The times when the rocket height is 60 feet are found by plugging in the value h = 60, in the equation of the vertical height of the rocket as follows:  

h = 60 = 156·t - 16·t²

156·t - 16·t² - 60 = 0

4·(39·t - 4·t² - 15) = 0

Therefore: \(39\cdot t - 4\cdot t^2 - 15 = \dfrac{0}{4} =0\)

39·t - 4·t² - 15 = 0

-4·t² + 39·t - 15 = 0

From the quadratic formula which is used to solve the quadratic equation of the form; f(x) = a·x² + b·x + c, is presented as follows;

\(x = \dfrac{-b\pm\sqrt{b^2-4\cdot a \cdot c} }{2\cdot a}\)

The solution of the equation, -4·t² + 39·t - 15 = 0, is therefore:

\(t = \dfrac{-39\pm\sqrt{(39)^2-4\times (-4) \times (-15)} }{2\times (-4)}= \dfrac{-39\pm\sqrt{1281} }{-8}\)

Therefore, when the height of the rocket is 60 feet, the times are: \(t = \dfrac{-39-\sqrt{1281} }{-8}\approx 9.35\) and \(t = \dfrac{-39+\sqrt{1281} }{-8}\approx 0.40\)

The times when the height of the rocket is 60 feet, the times are:

t ≈ 9.35 s, and t ≈ 0.40 s

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Answer:

the two numbers are 82 and 48

Step-by-step explanation:

let the first number = x

let the second number = y

according to the given conditions:

x + y = 130 --------------(1)

x - y = 34 -----------------(2)

by using the elimination method we add both equations (1) and (2) and the resultant value is

2x = 164

x = 164/2 = 82

by substituting the value of x in eq (1)

82 + y = 130

y = 130-82

y = 48

Answer:

100 feet long

Step-by-step explanation:

Answer:

length of second rectangle is

100 feet

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. In our tomato example, that ratio is $3.00/2, which equals $1.50. Two quantities are directly proportional when they increase and decrease at the same rate.

Step-by-step explanation:

:)