Answer:
I think it´s 12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
because 15% (or 0.15) times 80 equals 12.
A 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.
· 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
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
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
A sheet of drywall is cut into quarters. Each quarter is cut into thirds. What fraction of a whole sheet is each of these small pieces?
Answer:
X/12
Step-by-step explanation:
X - whole drywall
X/4 -quarters
X/4/3=X/12 fraction of a whole sheet is each of these small pieces
help me in 5 mins it is due
A pipe can pump 1000 gallons of water in 4 hours.
How long would it take the pipe to fill a 2500 gallon pool?
4 h
8 h
10 h
25 h
Answer: 10 hours exactly.
Step-by-step explanation:
Answer:
10h
Step-by-step explanation:Every 4 hrs 1000 is dumped
2500/1000=2.5
2.5 times 4=10
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 = 26/9Best 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
10 = 3/5 (x+5) simplified ??
Answer:
35/3 is your answer
Step-by-step explanation:
also if you want it in decimal form its 11.6
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
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
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!
I GIVEEE BRAINLIST //
Answer:
-20% aka 20% decrease
Step-by-step explanation:
Answer:
450 %20
Step-by-step explanation:
We can measure. waves with instruments
Answer:
Yes, we can measure waves with instruments. We can also use math.
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.
Photo attached please help with answer
Answer:
a don't know if right but sorry if wrong
Needdddd help on thissss
Answer:
Chose forth and fifth answer
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%
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
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
STMolciatio
saisi savo
Paintinoindiadoc
7
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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 :)
if if 30 per increase in the salary of usman results in rs.4500 what was the actual salary of usman
Answer:
The actual salary of usman was Rs. 3461.53
Step-by-step explanation:
Given that:
Percent increase in salary = 30%
Total salary percent would be = (100+30)% = 130%
Salary after increment = Rs. 4500
Let,
x be the actual salary before increase.
According to given statement,
130% of x = 4500
[tex]\frac{130}{100}x=4500\\1.3x=4500[/tex]
Dividing both sides by 1.3
[tex]\frac{1.3x}{1.3}=\frac{4500}{1.3}\\x=Rs 3461.53[/tex]
Hence,
The actual salary of usman was Rs. 3461.53
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.
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.
Pls help this last question
Answer:
4 more pens
Step-by-step explanation:
Well, what do we know?
We know Sheila has:
6 pens
10 pencils
How many MORE pens does she need to make the number of pens equal to the number of pencils?
6 + x (x is the number of pens needed to EQUAL to 10)
6 + x = 10
x = 4
Sanity check:
6 + 4 = 10
Sheila needs 4 more pens to make the number of pens and pencils equivalent, or EQUAL TO each other.
Please answer quickly
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?
(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.
i need help with this
Answer:
I would say that the answer is D
Step-by-step explanation:
Hope this helps you:)
