you can only choose 4 unique ways Step-by-step explanation:
is 6.2 rational or irrational
Answer:
irrational
Step-by-step explanation:
Answer:
Rational.
Step-by-step explanation:
If a number is rational it can be expressed in a fraction [tex]\frac{x}{y}[/tex] where x and y are integers.
[tex]6.2=\frac{62}{10} = \frac{31}{5}[/tex]
Since 6.2 can be expressed in a fraction, it is rational.
what is the p value definition
Answer:
statistics, the p-value is the probability of obtaining results as extreme as the observed results of a statistical hypothesis test, assuming that the null hypothesis is correct. ... A smaller p-value means that there is stronger evidence in favor of the alternative hypothesis.
Leslie cobar's piggy bank 36 coins. Some are quarters and rest are half - dollars. If the total vaule of the coins is $14.75, how many of each of denomination does Leslie have?
Answer:
Leslie has 13 quarters and 23 half-dollars.
Step-by-step explanation:
You can write the following equations from the information given and considering that a quarter is $0.25 and half-dollar is $0.50:
x+y=36 (1)
0.25x+0.50y=14.75 (2), where:
x=amount of quarters
y=amount of half-dollars
First, you can isolate x in (1):
x=36-y (3)
Then, you can replace (3) in (2):
0.25(36-y)+0.50y=14.75
9-0.25y+0.50y=14.75
0.25y=5.75
y=5.75/0.25
y=23
Finally, you can replace the value of y in (3) to find the value of x:
x=36-23
x=13
According to this, the answer is that Leslie has 13 quarters and 23 half-dollars.
consider the equation 3a+0.1n=123 if we solve this equation for n which equation would result.
Answer:
[tex]n = 1230 - 30a[/tex]
Step-by-step explanation:
Given
[tex]3a + 0.1n = 123[/tex]
Required
Solve for n
[tex]3a + 0.1n = 123[/tex]
Subtract 3a from both sides
[tex]3a - 3a + 0.1n = 123 - 3a[/tex]
[tex]0.1n = 123 - 3a[/tex]
Divide through by 0.1
[tex]n = \frac{123 - 3a}{0.1}[/tex]
Split the fraction
[tex]n = \frac{123}{0.1} - \frac{3a}{0.1}[/tex]
[tex]n = 1230 - 30a[/tex]
Newman is building a patio. He estimates that he can install 8 square feet of paver bricks every quarter-hour. How many square feet does Newman install per hour?
Answer:
32 square feet
Step-by-step explanation:
From the above question, we know that: for Newman:
8 ft² = 1/4hour
x ft² = 1 hour
We Cross Multiply
8ft² × 1 hour= x ft² × 1/4hour
xft² = 8ft² × 1 hour/1/4 hours
x ft² = 32 ft²
Therefore, Newman installs 32 square feet per hour
Can anybody help me with this bellwork?
Manny is participating in a Bike-a-thon and travels at a constant rate of 6 miles in 20 minutes.
1. How long will it take manny to travel 9 miles
2. How long will it take manny to travel 10 miles?
Answer:
1. 30 minutes to walk 9 miles.
2. 33.33 minutes to walk 10 miles.
Step-by-step explanation:
I divided 20 by 6, and got 3.33. If you multiply 3.33 by 9 you get 30, and if you multiply 3.33 by 10 you get 33.33.
how would i simplify (4v^3 w) (-2w^3)
Answer:
You would distribute the imaginary 1 to 4w cubed and then do the same to the other side as well so 1 times-2w cubed would still be -2w and then 4w cubed would still be 4v and the answer is: -8v^3w^4
Step-by-step explanation:
If cyanide in a stream next to a gold mine increases from 240 ppm to 360 ppm, what percent increase is this?
Given :
Initial concentration , 240 ppm .
Final concentration , 360 ppm .
To Find :
Percent increase.
Solution :
Percentage increase is given by :
[tex]=\dfrac{Final-Initial}{Initial}\times 100\\\\=\dfrac{360-240}{240}\times 100\\\\=50\%[/tex]
Therefore , percent increase is 50 % .
Hence , this is the required solution .
Tell whether 948 can be divided evenly
(is divisible) by 4.
Answer:
yes
Step-by-step explanation:
948 ÷ 4 = 237
Answer:
yep
Step-by-step explanation:
948/4=237
check: 237x 4=948
What is the slope of the line ?
Answer:
2,3
Step-by-step explanation:
Answer:
3/2
Step-by-step explanation:
Taking the point at (1, -3) and (3, 0) and getting the rise-over-run will give you the answer. 0 - (-3) = 3 for rise, and 3 - 1 = 2 for run.
Someone plz help hurry will mark.
If f(x) = 5x + 40, what is f(x) when x = -5?
answers
-9
-8
7
15
Suppose point D is in the interior of ∠ABC
, m∠ABC=12x−110
, m∠ABD=3x+40
, and m∠DBC=2x−10
. W
Answer:
[tex]ABC = 130[/tex]
Step-by-step explanation:
Given
[tex]ABC=12x - 110[/tex]
[tex]ABD=3x+40[/tex]
[tex]DBC=2x - 10[/tex]
Required
Determine the measure of ABC --- Missing part of the question
First, we need to determine the value of x
Since, D is an interior of ABC, then
[tex]ABC = ABD + DBC[/tex]
[tex]12x - 110 = 3x + 40 + 2x - 10[/tex]
Collect Like Terms
[tex]12x - 3x - 2x = 110 + 40 - 10[/tex]
[tex]7x = 140[/tex]
Solve for x
[tex]x = 140/7[/tex]
[tex]x = 20[/tex]
Substitute 20 for x in [tex]ABC=12x - 110[/tex]
[tex]ABC = 12 * 20 - 110[/tex]
[tex]ABC = 240 - 110[/tex]
[tex]ABC = 130[/tex]
5. Why do valid straightedge and compass moves guarantee everyone will produce the same construction?
Answer:
The reason a valid straightedge and compass moves guarantees everyone will produce the same construction is that constructions involving the use of straightedge and compass comprises of a total of five fundamental constructions that are formed with the already constructed points, circles or lines such as the following;
1) Construction of a line that passes through given points
2) Construction of a through a given point and center
3) Creating the point of intersection of two given nonparallel lines
4) Constructing the points of intersection between a line and a circle
5) Constructing the points of intersection of two circles
Due to the limited number of types of construction, following clearly defined steps of construction, ensures that the same construction is produced by everyone
Step-by-step explanation:
6) -13x = 26
I need a explanation
Answer:
x = -2Step-by-step explanation:
- 13x = 26
divide each side by -13
- 13x = 26
-13 -13
x = -2
Answer:
-2
Step-by-step explanation:
-13x =26
x=-26 :13
x=-2
A music festival offers one-day and three-day passes. A one day pass costs $100 and a three-day pass costs $250. write an expression for the total ticket sales if (n) one day passes and (t) three day passes are sold.
Answer:
100n+250t
Step-by-step explanation:
cost of the1 one day pass=100
cost of n one day passes=100n
cost of the 1 three day pass=250
cost of t three day passes=250t
Total sale= 100n+250t
The expression for the total ticket sales if (n) one day passes and (t) three day passes are sold is n + t = $350.
What is an expression?An expression is a number, or a variable, or a combination of numbers and variables and operation symbols.
Now it is given that,
Cost of one-day passes, n = $100
Cost of three-day passes, t = $250
So, Total tickets sold = Cost of one-day passes + Cost of three-day passes
⇒ Total tickets sold = n + t
⇒ n + t = $100 + $250
⇒ n + t = $350
which is the required expression for total tickets sold.
Thus, the expression for the total ticket sales if (n) one day passes and (t) three day passes are sold is n + t = $350.
To learn more about expressions :
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−14x −45=613 what is x?
Answer:x= -47
Step-by-step explanation:
-14x-45=613
-14x = 658
x = -47
Answer:
x= -47 i'm sure i did it right but tripple check it for me
Step-by-step explanation:
add 45 to both sides
divide both sides by -14
x= -47
Delia went to the market to buy 4.5 pounds of sliced fruit in a container.she paid with a 20 bill and a 5 bill and received 3.67 as change.what was the cost for one pound of sliced fruit before taxes
Answer:
One pound of the item will cost 4.74 billStep-by-step explanation:
In this problem, we are told that Delia bought 4.5 pounds of fruit
and paid with a toa total bill of 20+5= 25 bill
and also she received a change of 3.67
this means that the item she bought cost 25-3.67= 21.33bill
now if 4.5 pounds of items cost 21.33 bill
then 1 pound will cost Xbill
cross multiply and solve for Xbill
X= 21.33/4.5
X= 4.74 bill
One pound of the item will cost 4.74 bill
What value of x makes this proportion true?
O A. 20
OB. 5
O C. 6
O 0.9
Answer:
5
Step-by-step explanation:
To find this answer first you multiply 4 by 25, giving you 100, then you divide 100 by 20 to get 5.
To check your work, if you multiply 20 by five you get 100, and if you multiply 25 by four you get 100 as well.
I hope this helps u!
Pls give thx and a brainliest ;)
Write 4.36 as a mixed number in simplest form.
4.36 =
Answer: 4 9/25
Step-by-step explanation:
One cell phone company offers a plan that costs $28.99 and includes unlimited night and weekend minutes. Another company offers a plan that costs $16.99 and charges $0.35 per minute during nights and weekends. For what numbers of night and weekend minutes does the second company's plan cost more than the first company's plan?
plan1 = 29.99
plan2 =19.99 + .35m
plan2 > plan1
19.99 + .35m > 29.99
.35m > 29.99-19.99
.35m > 10
m > 10/.35
m > 28.6 minutes
it will cost more if you exceed 28 minutes
Answer: the correct answer would be 35 minutes
this is a test please help How many noncollinear points make a plane?
0
1
2
3
Answer: 3 non collinear.
Step-by-step explanation:
When 1580 is divided into 13 equal parts, the remainder is 7. What is a correct way to write the quotient? 121.7 121 + 7 1217 over 1580 1217 over 13
Answer:
121.54
Step-by-step explanation:
1580÷13=121 r 7
7 over 13 is 0.538462
rounded off to 2 decimal places:0.54
so 121+0.54
121.54
HELP ASAP PLEASE!!!!
Answer:
[tex]x^3-5x^2+10x-14[/tex]
Step-by-step explanation:
[tex]\left(2x^3-5x^2+3x-10\right)-\left(x^3-7x+4\right)[/tex]
Remove brackets:
[tex]2x^3-5x^2+3x-10-x^3+7x-4[/tex]
Group similar terms together:
[tex]2x^3-x^3-5x^2+3x+7x-10-4[/tex]
Add/Subtract the terms:
[tex]x^3-5x^2+10x-14[/tex]
Answer:
Step-by-step explanation:
( 2X³ - 5X² + 3X - 10 ) - ( X³ - 7X + 4 )
2X³ - 5X² + 3X - 10 = X² - 10
X³ - 7X + 4 = - 7X² + 4
X² - 10 - - 7X² + 4 =
X² - 10 + 7X² + 4 =
THE ANSWER IS
8X⁴ - 6
Maggie's brother is 3 years younger than four times her age. The sum of their ages is 62. How old is Maggie? Maggie is years old.
Answer:
Maggie is 13 years old.
Step-by-step explanation:
1M + 1B = 62
rearrange to get:
1B = 62 - 1M
4M - 3 = 1B
substitute B with 62 - 1M so there is only one variable. this gives:
4M - 3 = 62 - 1M
Get all the variables on one side:
4M + 1M - 3 = 62
Get all non variables on the other side:
4M + 1M = 62 + 3
simplify:
5M = 65
Divide both sides by 5 to get the M by itself:
M = 13.
BONUS:
M + B = 62
B = 49
So her brother is 49 years old.
Maggie is 13 years old.
A group of fitness club members lose a combined total of 28 kilograms in 1 week. There are approximately 2.2 pounds in 1 kilogram. Assuming the weight loss happened at a constant rate, about how many pounds did the group lose each day?
Answer: 12.32 for 5 day week or 8.8 for a seven day week
Step-by-step explanation:
2.2 x 28 = 61.6
61.6 divided by 5 is 12.32
divide by seven if its a full week and the answer is 8.8
1/9divided by 2/5
I need the work will it to how to do it step by step Ik it sounds dumb but I need help.
Answer:
5/18
Step-by-step explanation:
first you want to flip 2/5 to 5/2 and change the division sign to multiplication so it would look like 1/9 x 5/2
then multiply 1 and 5 then 9 and 2 so the top and bottom to get 5/18
side note: but if it were 1/9 x 3/7 you would change the 3 to a 1 and the 9 to a 3 because they multiply so ask yourself how many times does three go into 9 so it would be 1/3 x 1/7= 1/21
hope this helped :) also what math are you taking bc if it is under algebra 1 or something i can help with any questions you have just message me and ill be happy to help :)
the coordinates of point T are (0,4). The midpoint of ST is (6,-7). Find the coordinate of point S
Answer:
Step-by-step explanation:
(x + 0)/2 = 6
x + 0 = 12
x = 12
(y + 4)/2 = -7
y + 4 = -14
y = -18
(12, -18)
The coordinate of the point S will be (12,-18).
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A midpoint is a point that lies on a line connecting two other locations and is in the middle of the line.
Given that the coordinates of point T are (0,4). The midpoint of ST is (6,-7). The coordinates of the point S will be calculated as below:-
The x-coordinate is calculated as below:-
(x + 0)/2 = 6
x + 0 = 12
x = 12
The y-coordinate is calculated as below:-
(y + 4)/2 = -7
y + 4 = -14
y = -18
Therefore, the coordinate of the point S will be (12,-18).
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Witch is greater 6.41 or 6.38
Answer:
6.41
Step-by-step explanation:
if u subtract 6.38 from 6.41 you have .03 left over.
Answer:
6.41
Step-by-step explanation:
6.41 is a greater number
3. How much money would you earn in three months (assume 4 weeks in each month) at each of the jobs you listed in #2 if you worked 6 hours per day for 5 days each week?
Answer:
see below
Step-by-step explanation:
3.) How much money would you earn in three months (assume 4 weeks in each month) at each of the jobs you listed in #2
if you worked 6 hours per day for 5 days each week?
-------------------------------------
1. dog walking:
6 hr/day (5 day) x (4 weeks x 3 months) x $30/hour
$10,800 in 3 months
-------------------------------------
2. private swim instructor
6 hr/day (5 day) x (4 weeks x 3 months) x $20/hour
$7,200 in 3 months
-------------------------------------
3. sandwich maker
6 hr/day (5 day) x (4 weeks x 3 months) x $16.75/hour
$6,030 in 3 months
