Answer:
455
Step-by-step explanation:
if the number is 146, then this answer is right.
(3×146) +17 = 455
Dan orders supplies for the science lab. Each of the 30 stations in the chemistry lab needs 5 feet of rubber tubing. If rubber tubing sells for $8.25 per yard, how much will it cost to equip all stations?
It will cost $412.50 for equipment for all stations.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Dan orders supplies for the science lab. Each of the 30 stations in the chemistry lab needs 5 feet of rubber tubing. If rubber tubing sells for $8.25 per yard.
The cost will be calculated as below,
3 feet = 1 yard
5 x 30 = 150 feet
8.25 per yard = cost
150/ 3 = 50 yards (total tubing needed)
50 x 8.25 = $ 412.50
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Four students took an exam the fraction of the total possible points that each received is given which students had the highest score. If students receive a whole number of points on every exam item can the exam be worth 80 points
Answer:
4% out of 100
Step-by-step explanation:
4% out of 100 students took the exam
Determine whether the following statement is true or false. The y-coordinate of the vertex of f(x) = - X + 4x + 3 is f(2). Select the correct choice below and fill in the answer box to complete your choice. A. The statement is true because the x-intercept of the parabola is B. The statement is false because the y-coordinate of the vertex is f(()). C. The statement is true because the x-coordinate of the vertex is 4 D. The statement is false because the y-coordinate of the vertex is
Answer:
Listen don't use this site
Step-by-step explanation:
They are using people to make money
Given ∠A and ∠B are vertical angles with m∠A=20x+10 and m∠B=30x−10 .
What is x?
Enter your answer in the box.
ILL GIVE BRAINLIEST THANK YOU
Answer:
since angle a and b are vertical angles
therefore we can say that,
i) <A=<B
or,20x+10=30x-10
or,10+10=30x-20x
or,20=10x
.°. x=10.
Answer:
9
Step-by-step explanation:
please help on that excercise
Step-by-step explanation:
16. d-4 = -7
or, d = -7+4
or, d = -3
therefore, d = -3.
17. c-34 = 20
or, c = 20+34
or, c = 54
therefore, c = 54
18. a-4 = -18
or, a = -18 + 4
or, a = -14
therefore, a = -14
19. r-3 = 8
or, r = 8+3
or, r = 11
therefore, r = 11
20. z-100 = 100
or, z = 100+100
or, z = 200
therefore, z = 100
21. 5 = d - 1
or, 5+1 = d
or, 6 = d
or, d = 6
therefore, d = 6
3/5 + -7/5
Answer fast please
Answer:
-0.8
Step-by-step explanation:
hope this helps :3
Answer:
-4/5 for fraction or -0.8 for decimal
Step-by-step explanation:
According to Siri every 5 inches of the map represents 3 miles of trails in the park how many inches on the map represents 9 miles on the park trails
Answer:
15 inches
Step-by-step explanation:
If 3 miles represents 5 inches and you want to know what represents 9 miles Just multiply 5*3 to get 15
Malik considers the enkargement of the trapezoid
25 cm
10 cm
18 cm
x cm
What is the correct cross product that he should use to solve for the missing dimension?
(10)(25) 186
(10)(18) - 250
(18)(25) - 10
(18)(20) 18
Answer:
it should be D thx
Step-by-step explanation:
Mr. Frankel bought 5 tickets to a puppet show and spent $26. He bought a combination of child tickets for $2 and adult tickets for $10 each. Write a system of equations to determine the number of adult tickets, a, and the number of child tickets, c, he bought. Solve the system. *Show both the equations and solutions
Answer:
3 child tickets and 2 adult tickets
Step-by-step explanation:
5t = 26
2c + 10a = 26
c = 3 a = 2
(2 * 3) + (10 * 2) = 26
6 + 20 = 26
The equations are c + a = 5 and 2c + 10a = 26. Then the number of children and adults will be 2 and 3, respectively.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
Mr. Frankel bought 5 tickets to a puppet show and spent $26. He bought a combination of child tickets for $2 and adult tickets for $10 each.
Let 'c' be the number of children and 'a' be the number of adults. Then we have
a + c = 5 ...1
2c + 10a = 26 ...2
From equations 1 and 2, then we have
2(5 - a) + 10a = 26
10 - 2a + 10a = 26
8a = 16
a = 2
Then the value of the variable 'c' is calculated as,
2 + c = 5
c = 3
The equations are c + a = 5 and 2c + 10a = 26. Then the number of children and adults will be 2 and 3, respectively.
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The standard unit for measurement for volume is
Answer:
I'm pretty sure it's cubic meters
A roofs length is 4 feet less than twice its width algebraic expression
Answer:
2x - 4
Step-by-step explanation:
So first the length is 4 feet less than twice the width meaning that to find the length you subtract twice the width ( 2x ) minus 4.
Thus it becomes 2x - 4
HOPE IT HELPED
Question 3 (5 points)
Which radical expression is an irrational number?
O A) 36
B) 65
O C) 121
OD) 64
inte
Answer:
121
we can factor it
121 = 11×11
121=(11)2
121=11
so options c is correct
Which table does NOT represent a function please hurry it’s urgent Thank you
A) a
B) b
C) c
D) d
Solve the following inequality -9/2x grater then or equal to -1/4
Answer:
Did you mean [tex]\frac{-2x}{9} ?\\[/tex]
Please clarify so that I can work this problem out for you :)
Step-by-step explanation:
the trans-global shipping company has been forced to lay off some workers due to a decrease in revenue. last year the company had to lay off 75 people so far this year they had to lay off 20% more employees than last year how many have been laid off this year
Answer:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Answer:
Boy
Explanation:
Step-by-step explanation:
The required number of employees being laid off is 90.
What is percentage?A percentage is a value that indicates 100th part of any quantity.
A percentage can be converted into a fraction or a decimal by dividing it by 100.
Given that,
The number of employees laid off last year was 75.
The percentage increase in laid off for present year is 20%.
The number of employees laid off can be calculated as follows,
75 + 20% of 75
= 75 + 20/100 × 75
= 75 + 15
= 90
Hence, the number of employees laid off in the present year is 90.
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-5(x+1)= - 3(2x-2)
x= 11
X=-3
x=3
x= -11 please help quick!!!
х
0
1
у
—125
-121
-93
-17
131
2
3
4
Answer:
12
Step-by-step explanation:
Can anyone answer these questions?
Answer:
1. y² = 169
taking a square root of both sides
y = √169
we know that 13 * 13 = 169
since when squaring a number, the signs on the numbers do not matter
(i.e - 2* 2 = 4 and (-2)*(-2) = 4)
So (-13) * (-13) = 169 as well
Hence we can say that √169 = ±13 OR √169 = +13 and -13
2. Volume of a cube-shaped crate = side*side*side
Volume = side³
(We are given that volume = 27)
27 = side³
side = ∛27
Since 3*3*3 = 27 and (-3)*(-3)*(-3) = 27
So, we can say that ∛27 = ± 3
BUT
the side of a crate cannot be negative, so the side will NOT be -3 and hence,
side = 3
3. b³ = 1000
we know that 10*10*10 = 1000 and (-10)*(-10)*(-10) = 1000
So, ∛1000 = ∛(10*10*10)= ±10
4. Area of a square(Patio) = Side²
Area = Side²
196 = Side² (Since we are given the area of the patio)
Side = √196 = √(14*14) or √(-14*-14)
Hence,
Side = + 14 or -14
but the side of a patio cannot be negative
Side = +14 ft
Use the given x and y values to write a direct variation equation
x=5, y=30
Answer:
The direct variation equation is y = 6x
Step-by-step explanation:
The direct variation equation is y = kx, where
k is the constant of variationTo find the value of k, use the initial values of x and y
∵ y = 5, y = 30
∵ y = k x
→ Substitute the values of x and y to find k
∵ x = 5 and y = 30
∴ 30 = k (5)
∴ 30 = 5k
→ Divide both sides by 5
∴ [tex]\frac{30}{5}=\frac{5k}{5}[/tex]
∴ 6 = k
→ Substitute it in the form of the equation
∴ y = 6x
The direct variation equation is y = 6x
Mitchell’s dog is 1/3 as old as Katie’s cat. The sum of their ages is 12 years. How old is Mitchell’s dog?
Answer:
Mitchell's dog is 3 years old
Step-by-step explanation:
9 x 1/3 = 3
9 + 3 = 12
To solve this I just thought of the multiples of three under 12 that if added to 3 are equal to 12 to find Katie's cat age. The multiples of three under 12 are 3, 6 and 9. It couldn't be 3 and 6+3=9 so it had to be 9. So if Katie's cat is 9, you just multiply 9 by 1/3 or divide it by 3 to find Mitchell's dog age.
I need help with my homework I did it but it is wrong.
Answer:
π= 3V/(4r³)Step-by-step explanation:
Solve for π
V = 4/3πr³3/4V = πr³3V/(4r³) = ππ= 3V/(4r³)Answer:
π = 3V 4r³Step-by-step explanation:
V = 4 π r³
3
solve for π
3*V = 4π r³
3V = π
4r³
therefore.
π = 3V
4r³
what is the answer? pls help
Answer:
The answer is Not a line (no constant slope)
Step-by-step explanation:
21/7
-2/-1
78/26
-105/-35
The slope is always different, therefore there is no constant slope!
Hope this helps!
The coefficients in the expansion of (x + y)4
are
O A. 1, 4, 6, 4, 1
OB. 0, 1, 4, 6, 4, 1, 0
C. 0, 4, 6, 4,0
D. 1, 4, 6, 6, 4, 1
Answer:
A
Step-by-step explanation:
Notice: The literal factors are all the combinations of a and b where the sum of the exponents is 4: a4, a3b, a2b2, ab3, b4.
The degree of each term is 4.
The first term is actually a4b0, which is a4 · 1.
Thus to "expand" (a + b)5, we would anticipate the following terms, in which the sum of all the exponents is 5:
(a + b)5 = ? a5 + ? a4b + ? a3b2 + ? a2b3 + ? ab4 + ? b5
The question is, What are the coefficients?
They are called the binomial coefficients. In the expansion of
(a + b)4, the binomial coefficients are
1 4 6 4 1
The coefficients in the expansion are 1, 4, 6, 4, 1.
What is Binomial Expansion?The sum of exponents of x and y is always n. The binomial coefficients which are equidistant from the beginning and from the ending are equal i.e. [tex]^nC_0[/tex]= [tex]^nC_n[/tex], [tex]^nC_1[/tex]= [tex]^nC_{n-1}[/tex], [tex]^nC_2[/tex]= [tex]^nC_{n-2}[/tex] ,….. etc.
The expansion of [tex](x+ y)^4[/tex]
= [tex]x^4[/tex] + 4x³y + 6x²y² + 4xy³ + [tex]y^4[/tex]
So, the highest degree is 4.
and, The literal factors are all the combinations are [tex]x^4[/tex], 4x³y, 6x²y², 4xy³,[tex]y^4[/tex]
Hence, the coefficients in the expansion are 1, 4, 6, 4, 1.
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6x+2 -1 -48-3-2x+2
Helpppppppp
x=12
This the answer hope this helps
If you need the steps please feel free to contact me in the comments
What is the solution to the equation?
3 (4x - 1) + x = 5x – 4(1 – 2x) +1
Each of the 25 students in Mr. McDonald’s class sold 16 raffle tickets. If each ticket costs $15, how much money did Mr. McDonald’s students raise.
Answer:
$6,000
Step-by-step explanation:
Basically just multiply 25*16 to see how many raffle tickets the class sold in total (400). Then to find the amount of money they raised, multiply 400*15 (6,000).
Paul bought 2.25 meters of wood to make 5 shelves of equal length . What is the length of each shelf ? show your work on a picece of paper
Answer:
Length of each shelf is 0.45 meters
Step-by-step explanation:
Given
[tex]Total\ Length = 2.25\ meters[/tex]
[tex]Shelves = 5[/tex]
Required
Determine the length of each shelf
This is calculated by dividing the total length by number of shelves as thus:
[tex]Length = Total\ Length/Number\ of\ Shelf[/tex]
[tex]Length = 2.25m /5[/tex]
[tex]Length = 0.45m[/tex]
Hence;
Length of each shelf is 0.45 meters
Answer:
0.45
Step-by-step explanation:
Find the slope of each line.
Answer:
It is 1/2
Step-by-step explanation:
the rise is 2
the run is 4
2 over four simplifies to one half
Order set of numbers from least to greatest
3/4, 0.72%, 69%, .63
Answer:
Step-by-step explanation:
0.72%, .63= 63%, 69%, 3/4
In analyzing hits by certain bombs in a war, an area was partitioned into regions, each with an area of km2. A total of bombs hit the combined area of regions. Assume that we want to find the probability that a randomly selected region had exactly hits. In applying the Poisson probability distribution formula, P(x) , identify the values of , x, and . Also, briefly describe what each of those symbols represents.
Answer:
The answer is "[tex]\bold{ \mu =0.967, x=3, \ and \ e= 2.718}[/tex]".
Step-by-step explanation:
A distribution of poulet applies because it deals through events (bomb hits) over even a sample space (the region with [tex]0.95 \ km^2[/tex] area).
Its average hit number per area is:
[tex]\to \mu = \frac{\text{Number of hits of bomb}}{ \text{number of regions number}}[/tex]
[tex]=\frac{535}{553} \\\\= 0.967 \\\\[/tex]
[tex]\to x = 3\\\\\to e = 2.718[/tex]