Answer: $ 4.54
Step-by-step explanation:
What value for x will make the equation true?
−3 ( 7x − 5 ) = 87 + 3x
A. −17/4
B. -3
C. 4
D. 17/3
Answer:
C . 4
Step-by-step explanation:
step 1 : -3 multiply with inside of the ( 7x-5 )
= -21x + 15
step 2 : then it will be 21x + 15 = 87 + 3x
step 3 : switch between the odds into like this
21x - 3x = 87 - 15
step 4 : subtract it all
18x = 72
step 5 : bring 18 to the other side
x = 72/18
step 6 : to find the ans of x is just calculate them
x = 72 ÷ 18
= 4
Or you can do like these ⬇️
-3 ( 7x - 15 ) = 87 + 3x
21x + 15 = 87 + 3x
21x - 3x = 87 - 15
18x = 72
x = 72/18 or 72÷18
x = 4
A company has offices in two different countries. The 125 employees at location A have a mean commute time of 40 minutes and a standard deviation of 15 minutes. The 250 employees at location B have a mean and standard deviation of 35 and 10 minutes, respectively.
Every month, the company takes separate random samples of 20 employees from each location for a survey. Each time, they look at the difference in the mean commute time sampled from each location
Consider the formula: ...
Why is it not appropriate to use this formula for the standard deviation of ...
Choose
A. The samples are not independent of each other.
B. We cannot assume independence for the employees sampled from location A.
C. We cannot assume independence for the employees sampled from location B.
Answer:
B
Step-by-step explanation:
We cannot assume independence for the employees sampled from location A.
It is not appropriate to use this formula for the standard deviation of
A. The samples are not independent of each other.
What is the difference between the sample and the population?The entire group about whom you want to make conclusions is referred to as a population.
The particular group from which you will gather data is known as a sample. The sample size is always smaller than the population as a whole.
We cannot rely on the workers' sampled employees' independence.
Assuming independence based on the 10% condition requires at least 200 employees in the population with a sample size of 20, however, location A only has 125 employees.
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Choose True or False for each equation for x = 6.
1 = False (6x6 = 36)
2 = True ( 6 + 5 = 11)
3 = True ( 6/2 = 3)
4 = True (17 - 6 = 11)
Answer:
false
true
true
true
Step-by-step explanation:
Solve the equation, Write One solution, No solution and Infinitely Many Solution
1. X = X + 10 ________,_________
Answer:
No Solution.
Step-by-step explanation:
x=x+10
x-x=10
0=10
Please Help. Due Soon!
Answer:
yes
Step-by-step explanation:
They are correct because the reciprocal ( flipped or opposite) of -2/5 is 5/-2
Please help me i need it
Round 27.2847 to the nearest a. tenth and b. hundredth. SHOW YOUR WORK AND NO LINKS PLEASE, THANK YOU!
Answer:
A. 27.3
B. 27.28
Step-by-step explanation:
You would have to round the tenth place up because of the 8 in the hundredths place, and for the hundredth place you would have to see if the thousandths place is higher than a 5 and if not don’t round up.
Answer:
a=27.3000
b=27.2800
Step-by-step explanation:
you just look at the decimal places and ignore the whole numbers for now the you look at the 2 since it is tenth the number at its back will add one to it because 8 is greater than 5 and it becomes 3 since we added 1 to 2 . our number then becomes 27.3 and the zeros you can remove them or put them it doesn't matter.
I RLLLLYYY NEED HELP ASAP ILL GI S BRAINLIEST
mr. torres ordering 250 School t-shirts to sell in a school store the t-shirts come in blue gray or red to know how many of each color to order mr. torres polled a random sample of students l.the results are in the table
Answer:17
Step-by-step explanation:
so i think it would be 17 as 5 is equivlent to 8.33 percent of 60 which is the total amount of kids and 8.33 percent of 250 is 20 but since i think ur school rounds that percentage it would 17 red shirts
The results are in the table of the 250 total T-shirts about should be red 17.
We have given that,
Mr. torres ordered 250 School t-shirts to sell in a school store the t-shirts come in blue-gray or red to know how many of each color to order Mr. Torres polled a random sample of students. the results are in the table.
What is the random sample?
A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.
So I think it would be 17 as 5 is equivalent to 8.33 percent of 60 which is the total amount of kids and 8.33 percent of 250 is 20 but since I think your school grounds that percentage it would be 17 red shirts.
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y-2x=1 does the equation describe a function
yes or no
Answer:
Yes.
Step-by-step explanation:
A school band went on a trip to a music festival. The band director was admitted for free, but it cost $100 to rent a bus for the trip and $4 for each student to get into the festival. The total cost of the trip was $244. Which equation can be used to find s, the number of students that went on the trip?
Answer:
100 + 4s = 244
Step-by-step explanation:
Cost of the ticket for s students = 4s
Bus rent + cost of ticket for 's' students = $ 244
100 + 4s = 244
Answer:
i cant answer it either its so hard
Step-by-step explanation:
7 berries are 5 less than twice the number of berries Mickey had for lunch.
A. 7=5-2 B.5=2m-7 C.7=2m-5 D.12=m/2
Solve for x
−3x ≤−18
Answer:
x ≥ 6
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
-3x ≤ -18
Step 2: Solve for x
[Division Property of Equality] Divide -3 on both sides: x ≥ 6A four-sided sandbox has more than two right angles, two side lengths 3 ft, and two side lengths 6 ft.
What geometric shape best describes the shape of the sandbox? Use pencil and paper. Sketch the
sandbox.
Which geometric shape best describes the shape of the sandbox?
Answer:
I would say rectangle.
Step-by-step explanation:
_ _ _ more than two right angles
l l
l l
l l 6 ft
l l
l l
l l
--- --- ---
3 ft
Help with math please. Thank you!
Answer:
which one 1st page or 2nd page or both's answer you want
Answer:
Step-by-step explanation:
Being co- interior angle.
Sum of co - interior angle is always 180°.
Hence,angle UTY + angle RWX=180°
Which of the following uses the reciprocal property to rewrite x/5 = 72/4?
A. 5/x = 4/72
B. x/4 = 5/72
C. x/5 = 72/4
Answer:
I hope this helps.
Step-by-step explanation:
PLS HELP ME WITH THIS
An express bus and local bus start out at 1rst street together. The express bus stops every 15 blocks. The local bus stops every 4 blocks. How many blocks will it be before there is a bus stop where both buses stop?
HELPPP
Answer:
Block 60
Step-by-step explanation:
15 x 4 = 60
It has been found that 6% of all automobiles on the road have defective brakes. If 5 automobiles are stopped and checked by the police, find the probability that at LEAST one will have defective brakes.
Answer: umm
Step-by-step explanation:
Please!! Can someone give me the correct answer to this problem
I will mark you brainliest for the correct answer
This is a important test
Answer:
J = 124
Step-by-step explanation:
The angle ofis suplementary so
j+56=180
Step 1 Subtract 56 from both sides.
j+56−56=180−56
j=124
Maria who is 6 feet tall stand 20 feet away from the base of a tree she looks up at the top of the tree at 43° angle of elevation what is the approximate height of the tree rounded to the nearest 10th but
Answer:
24.7 feet
Step-by-step explanation:
Maria who is 6 feet tall stands 20 feet away from the base of a tree she looks up at the top of the tree at a 43° angle of elevation.
what is the approximate height of the tree rounded to the nearest 10th?
We solve the above question using the Trigonometric function of Tangent
tan θ = Opposite/Adjacent
θ = Angle of elevation
Adjacent = Distance from the base of the tree = 20 feet
Opposite => Height of the tree = x
θ = 43°
tan 43 = x/ 20 feet
x = tan 43 × 20 feet
x = 18.650301723 feet
Approximately = 18.7 feet
We are told in the question that Maria is 6 feet tall
Therefore, the height of the tree = Maria's height + Height
= 6 feet + 18.7 feet
= 24.7 feet
What are the 3 steps to solving an inequality?
Answer:
1. Clear parentheses on both sides of the inequality and collect like terms.
2. Add or subtract terms so the variable is on one side and the constant is on the other side of the inequality sign.
3. Multiply and divide by whatever constants are attached to the variable.
Step-by-step explanation:
Hope this helps :)
1/3 of 18 helpp please
Answer:
6
Step-by-step explanation:
the answer to 1/3 of 18 is 6.
Lisa works at a music store. Last week she sold 6 more than 3 times the number of CDs that she sold this
week. Lisa sold a total of 110 CDs over the two weeks. Find the number of CDs she sold last week and the
number of CDs she sold this week.
Answer:
This week sales = 26
Last week sales = 84
Step-by-step explanation:
Let this week sales = x
Sales last week = 6 + 3x
Sales last week + this week = 110
x + (6 + 3x) = 110
x + 6 + 3x = 110
6 + 4x = 110
4x = 110 - 6
4x = 104
x = 26
This week sales = 26
Last week sales = 6 + 3(26) = 84
Find the value of x in the diagram below.
Answer:
Step-by-step explanation:
I need the diagram
Please help me with this.. its the last question and I dont get it. its just number 12 please help
Answer:
Lawrence was incorrect.
Step-by-step explanation:
Amy: 2(3x) +2(4x + 3)
= 14x + 6 ✓
Kaye: 3x + 3x + 4x + 3 + 4x + 3
= 14x + 6 ✓
Lawrence: 4(3x) + 2(4x)
= 20x Ø
Sufjan: 6 + 3x + 3x + 4x + 4x
14x + 6 ✓
THIS IS 16 POINTS PLEASE HELP
Answer:
C) $540
Step-by-step explanation:
180 + (120 x 0.20)(15) = $540
Answer:
C. 540
Step-by-step explanation:
120 × 15
=1800
1800 × 20%
=360
360 + 180
= 540
Can someone help me with this please
Answer:
Try C
Step-by-step explanation:
I hope that this is right
A fish tank in the shape of a rectangular prism holds 30 cubic feet of water .the tank has a length of 5 feet and width of 3 feet . What is the length in depth,in feet ,of the tank ? A-2
B-6
C-10
D-15
Answer:
A - 2 feet
Step-by-step explanation:
We know that the tank is a rectangular prism which means the volume is equal to length*width*depth
since the tank can hold 30 cubic feet of water, we can divide 30 by the given dimensions of the length and width to find the depth
30/5 = 6
6/3 = 2
therefore, the depth of the tank has to be 2 feet (A)
Length x Width x Depth
From the question:
Volume of the rectangular prism = 30 cubic feet
Length of the rectangular prism = 5 feet
Width of the rectangular prism = 3 feet
Depth of the rectangular prism = ?
The formula to find the Depth of the rectangular prism is :Depth = Volume / (Length x Width)
Hence,
Depth = 30 cubic feet / 5 feet x 3 feet
Depth = 30/ 15
Depth = 2 feet
The correct option is option A
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About how many milliliters of soda are needed to fill one can?
Answer: If its a 12 oz can the answer should be 354 mm or 354.82 mm to be exact
Step-by-step explanation:
That's the correct answer.
18/? = ?/5 = 6? This is so confusing to me omg
Answer:
18/3=30/5=6
Step-by-step explanation:
Find the following arc measures
For question 1,3
Answer:
1) arc JL = 127°
arc JML = 233°
3) arc DE = 104°
arc FE = 76°
arc DEF = 180°
arc CFD = 284°
arc DFE = 256°
Step-by-step explanation:
1) arc JL = 127°
arc JML = 360 - 127 = 233°
3) arc DE =104°
arc FE = 180 - 104 = 76°
arc DEF = 180°
arc CFD = 180 + 104 = 284°
arc DFE = 360 - 104 = 256°
The angles arc measures are,
1) arc JL = 127°
arc JML = 233°
3) arc DE = 104°
arc FE = 76°
arc DEF = 180°
arc CFD = 284°
arc DFE = 256°
What is the angle of the circle?An angle of a circle is an angle that is formed between the radii, chords, or tangents of a circle. We saw different types of angles in the Angles section, but in the case of a circle, there, basically, are four types of angles. These are central, inscribed, interior, and exterior angles.
1) arc JL = 127°
arc JML = 360 - 127 = 233°
3) arc DE =104°
arc FE = 180 - 104 = 76°
arc DEF = 180°
arc CFD = 180 + 104 = 284°
arc DFE = 360 - 104 = 256°
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