Answers
Have a great day!
Related Questions
Mr Dean and mr. Mack each make a box plot to represent the grades from the same unit test for their first period classes
1. The number of students in mr Mack first period that scored between 78 and 90 on unit test represent what percent of his students.
A.25%
B.50%
C.75%
D.100%
Answers
Answer:
c
Step-by-step explanation:
Chip is getting food at his favorite restaurant. The bill comes out to $48 with a 20% tax added on top. How much does Chip have to pay?
Answers
Answer:
$57.60
Step-by-step explanation:
48 x 0.20 = 9.60
48 + 9.60
57.60
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PLEASE RATE AND MARK BRAINLIEST!!! :)
Shannon needs 20g of 80% gold to make a pendant. She has some 85% gold and some 70% gold. How much of each should she use of each alloy, use two linear equations to solve
Answers
Answer:
85%: 13 1/3 grams70%: 6 2/3 gramsStep-by-step explanation:
Two equations can be written to describe the desired relationships. One can describe the total quantity of gold alloy needed. The other can describe the amount of gold in the combination of alloys.
Let x and y represent the quantities in grams of 85% and 70% gold alloy needed, respectively.
x + y = 20 . . . . . . Shannon needs a total of 20 grams
0.85x +0.70y = 0.80(20) . . . . . the amount of gold in the mix of alloys
__
These equations are often nicely solved by substitution. Substituting for y, we have ...
0.85x +0.70(20 -x) = 0.80(20)
0.15x = 0.10(20) . . . . . . . eliminate parentheses, subtract 0.70(20)
x = 40/3 = 13 1/3 . . . . . divide by 0.15
y = 20 -13 1/3 = 6 2/3
Shannon should use 13 1/3 grams of 85% alloy and 6 2/3 grams of 70% alloy.
Please help/ 3(9k-1)
Simplified
Use the distributive property to simplify the expression
Answers
Hello.
Use the Distributive Property which states
a(b+c)=ab+ac
Simplify:
[tex]\hookrightarrow[/tex] [tex]\mathrm{3(9k-1)}[/tex]
[tex]\hookrightarrow[/tex] [tex]\mathrm{27k-3}[/tex]
Be sure to multiply 3 by both terms inside the parentheses.
I hope it helps.
Have an awesome day.
[tex]\boxed{imperturbability}[/tex]
Hey there!
The Distributive Property states that
a(b+c)=ab+ac
where
a, b, and c can be either constants or variables.
Now that we know what the property states, let's simplify:
3(9k-1)
multiply:
3 times 9k and 3 times -1
27k-3
Hope everything is clear.
Let me know if you have any questions!
#LearningIsFun
Darren wants to estimate the mean age in a population of trees. He'll sample nnn trees and build a 90\%90%90, percent confidence interval for the mean age. He doesn't want the margin of error to exceed 333 years. Preliminary data suggests that the standard deviation for the ages of trees in this population is \sigma=16σ=16sigma, equals, 16 years. Which of these is the smallest approximate sample size required to obtain the desired margin of error?
Answers
Using the z-distribution, as we have the standard deviation for the population, it is found that the smallest sample size required to obtain the desired margin of error is of 77.
What is a z-distribution confidence interval?The confidence interval is:
[tex]\overline{x} \pm z\frac{\sigma}{\sqrt{n}}[/tex]
In which:
[tex]\overline{x}[/tex] is the sample mean.z is the critical value.n is the sample size.[tex]\sigma[/tex] is the standard deviation for the population.The margin of error is given by:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In this problem, we have that the parameters are given as follows:
[tex]M = 3, z = 1.645, \sigma = 16[/tex].
Hence, solving for n, we find the sample size.
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]3 = 1.645\frac{16}{\sqrt{n}}[/tex]
[tex]3\sqrt{n} = 1.645 \times 16[/tex]
[tex]\sqrt{n} = \frac{1.645 \times 16}{3}[/tex]
[tex](\sqrt{n})^2 = \left(\frac{1.645 \times 16}{3}\right)^2[/tex]
[tex]n = 76.97[/tex]
Rounding up, the smallest sample size required to obtain the desired margin of error is of 77.
More can be learned about the z-distribution at https://brainly.com/question/25890103
what is 9+10 -129×5÷232²32×400÷23
Answers
Answer: 9 + 10 = 19
-129 x 5 = -645
232 exponent of 2 = 53,824
32 x 400 = 12,800
400 / 23 = 17
53,824 + 12,800 + -645 + 19 + 17 = 66015
Step-by-step explanation:
Decide which of the following is a reasonable answer for 7/5 x 7. pls help
7/5
7
9 4/5
Answers
The equation would look like:
7/5 x 5/1 or..
7 x 5
——-
5 x 1
= 35/5
= 7
Jed buys a sweater that has a sale price of $48. Jed gives the sales clerk $60 and receives $7.80 in change. What is the sales tax rate?.
Answers
Answer:
8.75%
Step-by-step explanation:
Answer:
8.75%
Step-by-step explanation:
money given= $60
Price=$48
returned money should be=$60-$48
=$12
received= $7.80
sales tax=$12-$7.80
=$4.2
%=Sales tax /price×100
=$4.2/$48×100
=8.75%
Need help on this question ASAP pleasee please!
Answers
Answer:
A
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what causes a leap year
Answers
Answer:
In a leap year, we add an extra day on 29 February to our calendar of 365 days. What goes around: The reason we have February 29 every four years is because of two different time cycles involved with the rotation of the Earth. Leap years happen every four years, except if the year is a multiple of 100Help please quickly.
Answers
Answer:
3.5
Step-by-step explanation:
Look at the .5's closely if you take the 2.5 measurement info and then there is a little bit left that may be another .5 measurement.
(15)/(sin64)=(b)/(sin50)=(c)/(sin66)
Answers
sin 50= .766
sin 60= .913
(15)(.898)=13.47
Answer:
b≈12.78 ; c≈15.25
Step-by-step explanation:
See image.
On the speed-time graph, the Y-axis should be labeled as
Answers
Directions: Express the number in scientific notation.
The human eye blinks an average of 4,200,000
times a year.
Answers
Answer:
count how many time you need to move the decimal point to only have 1 number on the left
4,200,000 = 6 times
4.2 × 10^6
PLEASE HURRY I NEED HELP
Answers
Answer:
I think 58% I’m not 100% sure but yea
Step-by-step explanation:
I divided the number of votes for printed 71 by the total number of votes 122 so 71/122=.58 58%
PLEASE HELP ME ASAP
I don't understand this
Answers
Answer:
18 times 15 times 9 = 2430 cubed inches
Step-by-step explanation:
I need help on this pls
If kushina made 5 cupcakes and minato and naruto took 2 each how much cupcaked does kushina have left for herself
And
If obito has 2 sharingan and gave one to kakashi how much sharingan does obito have?
Answers
5 - 2 = 3 cupcakes left for herself
2 - 1 = 1, kakashi has 1 sharingan now and so does obito
Find the volume of the prism.
A) 216 km
B) 109 km
C) 113 km
D) 152 km
Answers
Left side traingle:-
B=6kmH=8KmArea=
[tex]\\ \rm{:}\dashrightarrow \dfrac{1}{2}BH=\dfrac{1}{2}(6)(8)=4(6)=24km^2[/tex]
Now
Volume:-
Area of base×Height24(9)216km^3help me pleaseeeeeeee
Answers
Tan (angle)= opp/adj
Tan (39) = X / 30
Therefore Tan(39) x 30 = x
So X= 108.44
Matthew bought 16 gallons of gas for $4.25 per gallon. How much did he spend? Show your work.
Answers
Answer:
$68.00
Step-by-step explanation:
16 x 425 = 6800
Just move the decimal 2 places to the left to get 68
Matthew spends $68 on gas as the rate of gas is $4.25 per gallon.
What is per unit?Per unit is a technique of expressing a quantity's value in terms of a base or reference quantity. Each system variable or quantity in a per-unit system is normalized in relation to its own base value.
Given Matthew bought 16 gallons of gas for $4.25 per gallon.
Since the price per gallon = 4.25
The price of the gas for 16 gallons = 4.25 * 16
The price of the gas for 16 gallons = 68.00
Therefore, Due to the $4.25 per gallon price, Matthew spends $68 on gas.
Learn more about per unit here:
https://brainly.com/question/29355214
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What is the opposite operation of squaring? Using this opposite operation, rewrite the equation from question 1 so s is by itself on one side of the equation.
Answers
please help!!
Determine the five-number summary for the data set. 20, 26, 18, 31, 22, 28, 30
Answers
Answer:
min = 18Q1 = 20median = 26Q3 = 30max = 31====================================================
Explanation:
The first task is to sort the items given.
The sorted set is {18, 20, 22, 26, 28, 30, 31}
There are 7 values in that set. The median is going to be in slot 4 because n/2 = 7/2 = 3.5 rounds to 4.
The value in slot 4 is 26, meaning the median is 26.
There are 3 values below the median, and 3 values above it.
L = lower set = items below the median
L = {18,20,22}
U = upper set = items above the median
U = {28,30,31}
The median of set L is 20, showing that Q1 = 20 is the first quartile.
The median of set U is 30, meaning Q3 = 30 is the third quartile.
The min and max are exactly what they sound like: they are the smallest and largest items. In this case, we have min = 18 and max = 31.
7. Find the length of a chord that is 5 inches from the center of a circle with a radius of 13 inches.
Answers
Answer:
i don't know I don't have ideas
4. A punch bowl holds 80 oz of punch, that is enough for exactly 16 servings.
Hillary says that there are 20oz of punch for every 5 servings. Is Hillary correct?
Answers
Answer:
No, Hillary is incorrect. There's 20oz of punch for every 4 servings.
Step-by-step explanation:
80oz / 20oz = 4
16 servings / 4 = 4 servings
So, instead of there being 20oz of punch for every 5 servings, there would be 20oz of punch for every 4 servings.
408 takes the bus that's 60 percent of the kids at school what is the told number of kids at school
Answers
Answer:
408 students = 60%
408 x 100/60
= 680 students in total
Draw a line plot to show the lengths of Tony's 7 strings to the nearest fourth inch
Answers
The line plot is used to show the lengths of the string colors using check marks above the line
How to draw the line plotFrom the complete question, we have the following frequency table
String color Length
Black string [tex]3\frac 12 \ in[/tex]
Blue string 4 in
White string [tex]3\frac 12 \ in[/tex]
Brown string [tex]3\frac 14 \ in[/tex]
Green string [tex]4\frac 34 \ in[/tex]
Express as improper fraction
String color Length
Black string [tex]\frac {14}4 \ in[/tex]
Blue string [tex]\frac{16}4\ in[/tex]
White string [tex]\frac {14}4 \ in[/tex]
Brown string [tex]\frac {13}4 \ in[/tex]
Green string [tex]\frac {19}4 \ in[/tex]
Since the lengths are fractions and the string color is a text, then
We plot the lengths on the x-axis and the string color on the y-axis
See attachment for the line plot
Read more about line plots at:
https://brainly.com/question/15853311
x(85+1.90)=96.90 what is x ?????
Answers
Answer:
1.1150
Step-by-step explanation:
x(86.90) = 96.90
86.90x = 96.90
86.90x/86.90 = 96.90/86.90
x = 1.120
Answer:
[tex]\huge\boxed{\sf x = 1.12}[/tex]
Step-by-step explanation:
x (85 + 1.90) = 96.90
Add
x (86.90) = 96.90
Divide 86.90 to both sides
x = 96.90 / 86.90
x = 1.12
[tex]\rule[225]{225}{2}[/tex]
- Simplify (3x - 5) + (5x + 1). O 8x - 6 O 8x +4 - O 8x - 4 O 2x - 4
Answers
Answer:
8x - 4
Step-by-step explanation:
3x - 5 + 5x + 1
8x - 4
3x+-5+5x+1
=(3x+5x)+(-5+1)
=8X+-4
y=-⅓x+4 what is this treasure of change?
Please Help!
Answers
Answer:
-1/3
Step-by-step explanation:(if treasure of change is "rate of change")
Equation of a line: mx + b
m=-1/3: slope
b: y-intercept
^Whenever working with an equation of slope/rate of change the above variables have specific meanings.
Slope is another term for rate of change so the rate of change would be -1/3.
m=-1/3=slope/rate of change
b=4=y intercept
HELP!!!! Select ALL the correct answers.
Identify the two tables which represent quadratic relationships.