Frank has a box of pens. The box contains 6 blue pens, 8 black pens and 3 red pens. Some more blue pens are added to the box. The probability of selecting a blue pen is now 1/2. How many blue pens were added to the box?
Answer: umm i calculated about 10??
Step-by-step explanation:
Use the slope formula (m =
Y2 - Y1
) to find the slope of a line given two points.
X2 – X1
-1
(-7, -3) and (-6, -4)
x
1
(1, 6) and (-3,0)
1.5
(7, 2) and (0, -5)
For (7,2) and (0,5)
slope = 5-3/-7 = -2/7
what percent of 77 is 774
Answer:
9.95%
Step-by-step explanation:
y +6 > -13
What does this equal help
Answer:
y > -19
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define
y + 6 > -13
Step 2: Solve for y
[Subtraction Property of Equality] Subtract 6 on both sides: y > -19Here we see that any value y greater than -19 would work as a solution to the inequality.
Sassy Fashions buys dresses at wholesale and then marks them up for retail sale. They recently sold a dress at a 40% discount off their marked-up price. What percent mark-up did they originally apply to the dress if they broke even on the sale? Express your answer to the nearest whole percent.
Answer:
67%
Step-by-step explanation:
I did math counts
I GIVEEE BRAINLIST //
Answer:
-20% aka 20% decrease
Step-by-step explanation:
Answer:
450 %20
Step-by-step explanation:
A snail going full speed was taking of a minute to move
centimeter. At this rate, how long would it take the snail to travel a
centimeter?
Answer:
Step-by-step explanation:
if the snail moves 1 cm / 1 min
the snail will need 1 minute, maybe you didn't posted correct?
which statement is true about points located in quadrant ||| in the coordinate plane?
Answer:
The x-coordinate is negative, and the y-coordinate is negative.
Richie and bethany play basketball and practice shooting free throws after school. During one practice session, Richie attempted 15 free throws and made 12 of them.
a. bethany made eight free throws for every 3 that she missed. Did bethany do better than richie? how do you know.
Answer:
Bethany did not do better than Richie because her average score was less than his.
Step-by-step explanation:
Average Value
The average or mean value of m successes out of n tries is given by:
[tex]\displaystyle \bar x=\frac{m}{n}[/tex]
During a practice session playing basketball, Richie made m=12 free throws from n=15 attempts. His average score was:
[tex]\displaystyle \bar x=\frac{12}{15}=0.8[/tex]
Bethany made 8 free throws for every 3 that she missed, this means she made 8 out of 11 attempts. Her average score was:
[tex]\displaystyle \bar x=\frac{8}{11}=0.72[/tex]
Bethany did not do better than Richie because her average score was less than his.
The person that did better is Richie. This is because the percentage of free throws made by Richie is higher than that of Bethany.
In order to determine who did better, the percentage of free throws made has to be determined.
The percentage of free throws made by Richie =( 12 / 15) x 100 = 80%
The percentage of free throws made by Bethany = [(8-3) / 8] x 100 = 62.50%
To learn more, please check: https://brainly.com/question/92258
i need help with this
Answer:
I would say that the answer is D
Step-by-step explanation:
Hope this helps you:)
How to Find the length of the median of each trapazoid
HELP ASAP!!!!
In chemistry class, Bob recorded the volume of a liquid as 12.7 ml. The actual volume was 12.3 mL. Use
the formula to find percent error of Bob's measurement to the nearest tenth of a percent.
Experimental Value - Actual Valuel
Percent Error =
Actual Value
x 100
The percent error of Bob's measurement is
%.
Answer:
% error = 3.3%
Step-by-step explanation:
Percent Error Formula:
% error = ( (MeasuredValue - AcceptedValue) / AcceptedValue ) * 100
% error = ( (12.7 - 12.3) / 12.3 ) * 100
% error = (0.4/12.3) * 100
% error = (0.03252033) * 100
% error = 3.25203252
% error = 3.3%
Best answer gets brainliest!
The following three shapes are based only on squares, semicircles, and quarter circles. Find the perimeter and the area of each shaded part. Give your answer as a completely simplified exact value in terms of π (no approximations).
Answer:
A = 81 - 20.25π
P = 36 - 9π
Step-by-step explanation:
To find the perimeter and area of the highlighted shapes, we must find those of the square and full circle. Then subtract the circle's area from the square. Do the same for perimeter.
Answer: look at picture!!!!
Ur welcomeeeeeee
Elan is painting the outside of a rectangular barn door. It is
80 inches high and 60 inches wide. What is the area of the
outside of the door?
Help ASASP
Answer:
9600
Step-by-step explanation:
80 times 60 times 2
Where is the blue dot on the number line? -7 ? -7.5. -8
Answer:
-7.5
Step-by-step explanation:
Answer:-7.4
Step-by-step explanation:
Hopen helps ❤
What is the area of the trapezoid?
Ignore that I've already marked an answer. That was on accident.
C. 64
This is the answer
The well-known state of East Dakota spent approximately $80.8 billion in 2016. Its population at that time was about 3.203 million people. How much did East Dakota spend per capita in 2016? Round to the nearest dollar.
Answer:
$25,226
Step-by-step explanation:
We know that one billion is equal to 1,000 millions
So, we first multiply 80.8 by 1,000 so we can use millions as our unit.
Which gives you $80,800
So, East Dakota spent $80,800 million in 2016 for the 3.203 million people. Right now, we just ignore the "million" part and divide 80,800 by 3.203 which is around 25,226.35029659694
Now we just round it to the nearest dollar and since the tens place is only at 3, we round down.
Hence, our answer is $25,226
We can measure. waves with instruments
Answer:
Yes, we can measure waves with instruments. We can also use math.
STMolciatio
saisi savo
Paintinoindiadoc
7
8 8
को
Incouvarior
3
Answer:I do not speak
Step-by-step explanation: if u answer them all you get I do not speak I hope this helped :)
· Lucy buys 3 apples and 6 mangos for a total of $9.15.
· Amir buys 8 apples and 4 mangos for 11.92.
What is the cost of a single apple?
Answer:
0.97
Step-by-step explanation:
Let x be the cost of apples
Let y be the cost of mangoes
3x + 6y= 9.15......equation 1
8x + 4y= 11.92........equation 2
Multiply equation 1 by 8 and equation 2 by 3
24x + 48y = 73.2
-
24x + 12y = 35.76
36y = 37.44
y = 37.44/36
y= 1.04
Substitute 1.04 for y in equation 1
3x + 6y = 9.15
3x +6(1.04)= 9.15
3x + 6.24= 9.15
3x = 9.15-6.24
3x = 2.91
x = 2.91/3
x = 0.97
Hence the price of a single apple is 0.97
5x+y=9
10x-7y=-8
I need help!
Answer:
(11/9, 26/9)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Terms/CoefficientsSolving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
5x + y = 9
10x - 7y = -8
Step 2: Rewrite Systems
Manipulating: Equation 5x + y = 9
Subtract 5x on both sides: y = 9 - 5xStep 3: Redefine Systems
y = 9 - 5x
10x - 7y = -8
Step 4: Solve for x
Substitution
Substitute in x: 10x - 7(9 - 5x) = -8Distribute -7: 10x - 63 + 35x = -8Combine like terms: 45x - 63 = -8Add 63 on both sides: 45x = 55Divide 45 on both sides: x = 11/9Step 5: Solve for y
Define equation: 5x + y = 9Substitute in x: 5(11/9) + y = 9Multiply: 55/9 + y = 9Isolate y: y = 26/9A student was interested in studying the relationship between burping and eating at BCs. The hypothesis was that more expensive meals would correlate with more burping. They watched BCs patrons for two weeks and recorded the cost of meals and how often people burped while eating. In this experiment, the independent variable was _________, and they should present the data as a__________ .
a. Burping frequency,
b. Bar graph with error bars
c. Burping frequency
d. Scatter plot with a trendline
Answer:
Price of the meals
Scatter plot with a trendline
Step-by-step explanation:
None of the provided options are correct. The independent variable was Price of the meals, and they should present the data as a Scatter plot with a trendline. The Price of the meal is the independent variable because it does not depend on any other variable and is instead the cause of the burping frequency which would be the dependent variable in this scenario. The Scatter plot would allow you to mark each individual's burping frequency on the same prices for the meal, since you would most likely have more than one value of burping frequency for the same priced meal.
Jared ran four days this
week. He ran a total of 24.2
miles. If he ran about the
same distance every time,
how many miles did he run
each day?
Answer:
6.05
Step-by-step explanation:
24.2 / 4 = 6.05 ^^
hope this helps!
(GIVING BRAINLIEST!!)
Choose the equation that represents the fraction one eighth
A) 7 ÷ 8 = ________
B) 1 ÷ 8 = ________
C) 8 ÷ 7 = ________
D) 8 ÷ 1 = ________
Answer:
Step-by-step explanation:
The answer is d
Answer:
B.
Step-by-step explanation:
I did the test and got it right.
sarah puts $500 in a savings account that earns 3.15% compounded annually. how long does it take for sarah to double her money
Answer: What are the choices?
Step-by-step explanation:
what is the value of x in the equation -2/3 x + 9 = 4/3 x - 3
Answer:
x=6
Step-by-step explanation:
This equation requires simplifying. We start with moving like terms to each other:
3 + 9 = 4/3x + 2/3x
After this, add the like terms together:
12 = 6/3x
6/3 will simplify into 2:
12=2x
Finally, divide both sides by 2:
6=x
A melon is cut into 8 equal slices. Together, Regan and Juanita will eat of the melon.
What is one way the girls could eat that fraction of the melon?
Answer:
Many differeent suloutions, see below
Step-by-step explanation:
1/8, 1/16, 1/32, 1/64, 1/128, etc.
Based on a study by Dr. P. Sorita Soni at Indiana University, assume that eye colors in the United States are distributed as follows: 40% brown, 35% blue, 12% green, 7% gray, 6% hazel. If three people are randomly selected, what is the probability that one will have brown eyes, one will have gray eyes, and one will have green eyes (with replacement)
Answer
0.00336
Step-by-step explanation:
Given :
P(Brown), P(Br) = 0.4
P(Blue) = P(b= 0.35
P(green,) = P(g) = 0.12
P(gray), P(Gr) = 0.07
If 3 individuals are selected, the probability that one has brown eye, 1 has Grey and one has green.
Since the probabilities are independent :
P(Br) * P(Gr) * P( g)
0.3 * 0.07 * 0.12
= 0.00336
If you had 1.27x105 mL and 3.785 L equals exactly one gallon then how many gallons do you have? (Make sure you have the correct number of significant digits in your answer)
Answer:
33.6 gallons
Step-by-step explanation:
[tex]\frac{1.27x10^5 mL}{1}[/tex] × [tex]\frac{1 liter}{1000 mL}[/tex] × [tex]\frac{1 gallon}{3.785 liters}[/tex] = 33.5535 gallons = 33.6 gallons
A train is travelling at a constant speed in ten minutes it travels 24 km work out how far it travels in 30 minutes
50min
1 hour
