Answer:
The school has 6 periods a day needs 1 hour for each.
Step-by-step explanation:
8 period =45×8=360 minute
6 perod =360/6=60minute
William was out at a restaurant for dinner when the bill came. His dinner came to $31. After adding in a tip, before tax, he paid $39.99. Find the percent tip.
Answer: 12.9
Step-by-step explanation: Divide 39.99 by 31.00 you'll get 1.29, but you slide the decimal over and get 12.9
Will give brainliest! What is the solution to the following system of equations?
3x + y = 14
2x - 2y = 12
A) ( 5, -1 )
B) ( 1, 5 )
C) ( 4, 2 )
D) ( 7, 1 )
E) ( -5, 7 )
No explanation required
Answer:
5, -1
Step-by-step explanation:
I didnt get the correct answer doing it by hand, but with another app I was able to get the answer. I apologize.
Are 2(x - 3) + 1 and 2x + 6 equivalent expressions
Answer:
No.
Step-by-step explanation:
2(x-3) + 1 = 2x - 6 + 1 = 2x - 5
2x + 6 ≠ 2x -5, so no, they aren't equivalent.
The expression 2(x - 3) + 1 and 2x + 6 are not Equivalent.
What is Equivalent Expression?Equivalent expressions are expressions that perform the same function notwithstanding their appearance. If two algebraic expressions are equivalent, they have the same value when the same value(s) for the variable are used (s).
We have two expressions to compare 2(x- 3) + 1 and 2x +6 .
Now, simplifying the first expression as
= 2(x -3) + 1
= 2x - 6 +1
= 2x - 5
and, the second expression is 2x + 6.
Thus, both of expression are not Equivalent.
Learn more about Equivalent Expression here:
https://brainly.com/question/28170201
#SPJ7
15x+3y=-2 in slope-intercept form
Answer:
Y=-5x-2/3
Step-by-step explanation:
Answer:
y=-5x+2/3
Step-by-step explanation:
15x+3y=-2
-15x -15x
3y=-15x-2
3y/3=-15x/3-2/3
y=-5x+2/3
what is the expression in the factored x2+7x+6
Answer:
Step-by-step explanation:
x² +7x + 6 = (x+1)(x+6)
Does anyone know where I can find revision questions that will help me in my maths Gcse?
Step-by-step explanation: amazon they have everything
X
2
3
4
5
Y
27
38
49
60
Does the table show a proportional relationship
Answer:
ishiwhsjahjabzjwbjahsjabJ
Answer:
laksnsjisbsiagsjshshahsoavalao
Se compraron dos sacos
de azúcar de 50 kg cada
uno, ¿cuántas bolsas de
una libra se llenarán con
esa azúcar?
R
Answer:
10 es la respuesta amigo buenas tardes
Question 3(Multiple Choice Worth 2 points) (13.02 LC) What unit of measurement would you use to measure the length of your foot? Centimeter Kilometer Millimeter Meter
Answer: centimeter
Step-by-step explanation:
The best unit of measurement for measuring the foot will be centimeter.
What is unit of measurement?A unit of measurement is a standardized quantity of physical property, used as a factor to express the quantity of that property that exists. Among the first devices invented by humans were measuring units.
Given that, which will be the best unit of measurements for measuring the foot,
So, from the given options, the kilometer is very long for a human foot, millimeter is too small for a human foot and meter is also slightly longs,
We often measure the human body parts like hand, nose, tongue etc. in cm.
Hence, the best unit of measurement for measuring the foot will be centimeter.
Learn more about unit of measurement, click;
https://brainly.com/question/15402847
#SPJ2
Identify the independent and dependent variables.
The equation A = 25w represents the area A (in square feet) of a rectangular dance floor with a width of w feet.
The independent variable is
The dependent variable is
Answer
The Independent variable is w and the Dependent is A
Write an equation of the line that passes through (1, 2) and is parallel to the line
y = -5 +4. What’s the answer
Answer:
5x
Step-by-step explanation:
hope this helps
I NEED HELP ASAP I WILL MARK YOU BRAINLIEST
What is the definition of Linear Angle?
A pair of angles that lie on the same plane, have a common vertex, and share a common side
or
A pair of angles that have a common side and same vertex, and the sides points in opposite directions.
or
A pair of angles that are opposite of each other and formed by two intersecting lines.
Answer:
The angles are said to be linear if they are adjacent to each other after the intersection of the two lines. The sum of angles of a linear pair is always equal to 180°. Such angles are also known as supplementary angles. The adjacent angles are the angles which have a common vertex.
Find the value of x
A.15
B.25
C.35
D.45
Answer:
B
Step-by-step explanation:
27 - [ 38 - { 46 - ( 15 - 25) }]
Answer:
45
Step-by-step explanation:
Answer:
35
Step-by-step explanation:
27-[ 38-(46-(15-15))]
=27-38-46-0]
=27-(-8)
=27+8
+35
HELP RQQQQQQQQQQ plzzzzzz
Answer:
5 x - 2x + 7 - x = 2x + 7
Step-by-step explanation:
simplify
(5x - 2x - x) = 2x
2x + 7 = 2x + 7
I can do the previous part but I don't know what to do here
Answer:
25°; 115°.
Step-by-step explanation:
all the details are in the attached picture, the answers is marked with red colour.
How many days will it take a culture of bacteria
to increase from 400 to 40,000 if the growth rate
is 83.4% per day?
A. 7.1 days
B. 7.4 days
C. 7.6 days
D. 7.9 days
Answer:
BTris-HCl (0.5M Tris Base, pH7.6):
Trizma Base ---------------------------------- 61 g
Distilled water ------------------------------- 1000 ml
Adjust pH 7.6 using concentrated HCl
Store this solution at room temperature. Dilute 1:10 with distilled water before use
and adjust pH if necessary.
20X Tris-HCl (1M Tris Base, pH7.6):
Trizma Base ---------------------------------- 122 g
Distilled water ------------------------------- 1000 ml
Adjust pH 7.6 using concentrated HCl
Store this solution at room temperature. Dilute 1:20 with distilled water before use
and adjust pH if necessary.
10X Tris-HCl-Tween 20 (0.5M Tris Base, 0.5% Tween 20, pH7.6):
Trizma Base ---------------------------------- 61 g
Distilled water ------------------------------- 1000 ml
Adjust pH 7.6 using concentrated HCl and then add 5 ml of Tween 20.
Store this solution at room temperature. Dilute 1:10 with distilled water before use
and adjust pH if necessary.
Note: Tris-HCl Buffer is used for specific cases of immunohistochemical staining.
*** OR you can use Tris Base to make Tr
Answer:
Step-by-step explanation:
7.6 days
Jason has these coins in a jar.
What is the total value of these coins?
Answer:
55
Step-by-step explanation:
because 25+10+10+5+5=55
The total value of the coins in the jar is A = $ 0.55
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
The number of quarters = 1
So , the value of quarters = $ 0.25
The number of cents = 2
So , the value of cents = $ 0.20
The number of nickels = 2
So , the value of nickels = $ 10
And , the equation will be
A = value of quarters + value of cents + value of nickels
On simplifying , we get
A = 0.25 + 0.20 + 0.10
A = $ 0.55
Therefore , the value of the coins is A = $ 0.55
Hence , the equation is A = $ 0.55
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ3
What is the area of this triangle?
Enter your answer in the box.
Answer:
10 square units
Step-by-step explanation:
Base of triangle (b) = 4 units
Height of triangle (h) = 5 units
Therefore,
Area of triangle
[tex] = \frac{1}{2} bh \\ \\ = \frac{1}{2} \times 4 \times 5 \\ \\ = 2 \times 5 \\ \\ = 10 \: {units}^{2} [/tex]
what is 7/8 days in hours
PLS HURRY AND ANSWER I NEED THE ANSWER!!!! PLS
An icecream machine can make 6 quarts in 8 hours. At this rate, how
many quarts can it make in 64 hours?
A.
42
B.
36
C.
24
D.
48
Answer:
48 i think
Step-by-step explanation:
im not 100% persint sure
Plz help what’s the length of the side
Answer:
12
Step-by-step explanation:
Pythagoras Theorem is clearly used in this question.
To Calculate the Hypotenuse:
C = [tex]\sqrt{a^2+b^2}[/tex]
The Adjacent angle has already given as 9, so you can factor that into the question.
In Order to calculate the Opposite angle you need to use the following formula.
[tex]b = \sqrt{c^2-a^2}[/tex]
With the integers we already have for both Hypotenuse and Adjacent factored in this will be your equation:
[tex]b = \sqrt{15^2-9^2} = 12[/tex]
Therefore you answer is 12, Hope this helps, feel free to make as brainilest.
3grams as a percentage of 20 grams
Answer: 0.6 grams
Solve: 3% of 20 = 0.03 × 20 = 0.6
9/4 ÷ 3/4 = ??????????
3/1 so 3
9 \3 = 3
4/4= 1
the denominator is 1 because they are both the same whole number.
REMEMBER: (you are beautiful and deserve the world. you deserve to be treated like it. U deserve love, and i know without a shadow of doubt you will find it. you are that amazing. Your story is not to be silenced its your story so own it!
I hope this helped you and i hope you have a wonderful rest of your day :)
~hailey lee~
round your answer to the nearest tenth
Answer:hi
Step-by-step explanation:
Find an explicit rule for each geometric sequence using subscript notation. Use a calculator and round your answers to the nearest tenth if necessary.
The fifth term of a geometric sequence is 7. The sixth term is 3.5.
Answer:
aₙ = 224(1/2)ⁿStep-by-step explanation:
Given GP with:
a₅ = 7a₆ = 3.5We can find the common ratio:
r = 3.5/7 = 1/2Using the nth term formula we can work out the first term:
aₙ = a₁rⁿ⁻¹a₅ = a₁(1/2)⁴7 = a₁ (1/16)a₁ = 7*16a₁ = 112So the explicit rule is:
aₙ = 112(1/2)ⁿ⁻¹ = 224(1/2)ⁿSuppose a normal distribution has a mean of 222 and a standard deviation of
16. What is the probability that a data value is between 206 and 230? Round
your answer to the nearest tenth of a percent.
A. 91.0%
B. 66.9%
C. 53.3%
D. 84.0%
Answer:
C) 53.3%
The probability that a data value is between 206 and 230
P( 206 ≤X≤230) = 0.5328 = 53.3%
Step-by-step explanation:
Explanation
Given that Mean of the Normal distribution(μ) = 222
Given that the standard deviation of the Normal distribution (σ) = 16
Let 'X' be the random variable in the Normal distribution
we have to find that the probability that a data value is between 206 and 230
solution:-
Step(i):-
Let 'X' = 206
[tex]Z = \frac{x^{-}-mean }{S.D} = \frac{206-222}{16} = -1[/tex]
Let X = 230
[tex]Z = \frac{x-mean }{S.D} = \frac{230-222}{16} = 0.5[/tex]
Step(ii):-
The probability that a data value is between 206 and 230
P( 206 ≤X≤230) = P( -1≤Z≤0.5)
= |A(0.5)+A(-1)|
= 0.1915+0.3413
= 0.5328
final answer:-
The probability that a data value is between 206 and 230
P( 206 ≤X≤230) = 0.5328 = 53.3%
(a) The 10 members of the swim team completed the following numbers of laps at today's practice:
77, 79, 80, 82, 84, 85, 86, 87, 90, 91.
Which measure should be used to summarize the data?
Mean?
Median?
Mode?
Answer:
mean
Step-by-step explanation:
The method to summarize the data will be mean
The mean of the laps of swim team is 84.1 laps
What is Mean?
The mean value in a set of numbers is the middle value, calculated by dividing the total of all the values by the number of values.
Mean = Sum of Values / Number of Values
Given data ,
Let the data be represented by the set A
Let the mean of the data set be M
The value of set A = { 77 , 79 , 80 , 82 , 84 , 85 , 86 , 87 , 90 , 91 }
The total number of data elements in the set = 10
Now , since all the data elements are distributed normally and does have a central point
So , it follows normal distribution
Therefore , the mean of the data will be
Mean M = Sum of Values / Number of Values
Mean = ( 77 + 79 + 80 + 82 + 84 + 85 + 86 + 87 + 90 + 91 ) / 10
Mean = 841 / 10
Mean M = 84.1 laps
Therefore , the value of M is 84.1
Hence , The method to summarize the data will be mean
The mean of the laps of swim team is 84.1 laps
To learn more about mean click :
https://brainly.com/question/15526777
#SPJ2
9. Cameron uses a $10 bill to purchase an item
that costs d dollars. Which equation represents
the amount of change c that he should receive?
Independent
Variable
Dependent Variable
Equation:
E
U
Solution: If Cameron s purchase costs $5.50, how
much change will he receive?
n
Answer:
hi
Step-by-step explanation:
hi
Convert the measurement.
142.0 grams ≈ ? ounces