Step-by-step explanation:
iknow but its hard to expalin
help me with this please!!
Math; please help I will mark brainliest! ASAP
Of all the 6 students on the Math Olympiad team, 3 members
are seventh-grade students and 3 are eighth-grade students. The
coach will place equal-sized tickets labeled A7, B7, C7, D8, E8, and
F8 to represent each team member in a hat and randomly select
two tickets to choose the team captains.
1. Write the sample space of all possible pairs of students. How many pairings are possible?
2. What is the probability that both team captains will be seventh-grade students? Explain.
3. Jamal, one of the team members in seventh grade, wonders about the probability that he and another seventh-grade student will be selected. Is this probability equal to the probability determined in Exercise 2? Explain.
4. Samantha is one of the team members in eighth grade. She wonders about the probability that she and another eighth-grade student will be chosen as team captains. Explain why this is equal to the probability determined in Exercise 3.
5.Is it more likely that there will be a captain from each grade as compared to the probability that both captains will be in the same grade? Explain
List the next four multiples of the fraction. 3/6
g(n) = 9n² + 7n³
g'(n) = ?
Answer:
g'(n) = 3n(6 + 7n)
Step-by-step explanation:
g(n) = 9n² + 7n³
g'(n) = 18n + 21n²
g'(n) = 3n(6 + 7n)
»g(n) = 9n² + 7n³
»g'(n) = 9(2)n + 7(3)n²
»g'(n) = 18n + 21n²✅
Write and solve a one variable equation that has an infinite number of solutions. (7th grade math)
Answer:
12r + 13 + 5r + = 13 + 17r
Step-by-step explanation:
If a linear equation has the same variable term and the same constant value on both sides of the equation, it has infinitely many solutions.
AVID class is having a bake sale, and they are selling cookies and cake to raise money for a field trip. A bag of
cookies costs $3 and a slice of cake costs $5. The class wants to raise $900.
The situation can be represented by expression 3x + 5y = 900
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
Let x represent the number of cookies and y represent the number of cake slice.
The class wants to raise $900.Hence:
3x + 5y = 900
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Two lawn mowing companies charge different rates depending on the number of acres the lawn covers. Answer the following questions by selecting the appropriate company.
Company A: The total cost, y, of mowing a lawn
is $15 plus $5 for each acre, x, of its size.
Company B:
0 10
1 17
2 24
3 31
Which company charges less to mow a lawn that covers 6 acres? Company A
Company B
Which company's cost has the greater rate of change? Company A
Company B
Which company charges $80 for a lawn that is 10 acres? Company A
Company B
Which company has the lower y-intercept? Company A
Company B
Answer:
it is too hard bro
Step-by-step explanation:
sry I can't give
Answer:
Which company charges $80 for a lawn that is 10 acres?
Company B
Step-by-step explanation:
I got the question wrong for you
100 POINTS!!!
Garrett earned $634.10 in net pay for working 27 hours. He paid $156.61 in federal and state taxes, and $61.24 in FICA taxes. What is Garrett's hourly wage?
Show work for 100 POINTS!!!
Answer:
$31.55
Step-by-step explanation:
Net pay = $634.10
Hours worked = 27
Taxes = $156.61
FICA = $61.24
Gross pay = earnings before taxes, benefits and other deductions
Net pay = earnings after all withholdings are accounted for
⇒ Gross pay = net pay + deductions
= $634.10 + $156.61 + $61.24
= $851.95
⇒ hourly wage = gross pay ÷ number of hours
= 851.95 ÷ 27
= $31.55 (nearest cent)
Gross income:-
Total money earned=634.1+156.61+61.24
851.95$No of hours=27h
Hourly weightage:-
Gross income/Total hours851.95/2731.5$At one farmer's market, bananas cost $0.80 per pound. At another farmer's market, bananas are sold in 5-pound bags for $4.50 per bag. Which explains how to find the better buy? O Dvide 450 by 5 to find the unit rate for the 5-pound bag, and compare that number to $0.80 per pound ODvide 0.80 by 5 to find the unit rate for the 5-pound bag, and compare that number to $0.80 per pound. OMultiply 4.50 by 5 to find the cost for 5 pounds, and compare to $4.50 per bag. OMultiply 4.50 by 0.80 to find the cost for 5 pounds, and compare to $4.50 per bag.
Answer:
Divide 4.50 by 5 to find the unit rate for the 5 pound per bag, and compare that number to 0.80 per pound.
(39.87 + 2(x-5))(1/2)
Part A
Identify the factors of Jared’s expression. Which factor represents the total cost of Jared’s trip to the amusement park? Explain your answer.
Part B
Identify the terms in the first factor of the expression. Based on the situation, identify what each term represents.
Part C
What is the coefficient of the second term of the first factor? What does this represent in terms of the situation?
Part D
Based on Jared’s expression, how many rides are included with the cost of general admission? Explain your answer.
Terms, coefficients and factors are what make up an algebraic expression
The factors of the expressionThe expression is given as:
(39.87 + 2(x-5))(1/2)
For an expression ab, the factors are a and b.
Hence, the factors of the expression (39.87 + 2(x-5))(1/2) are 39.87 + 2(x-5) and (1/2)
The terms in the first factorIn (a), we have the first factor to be:
(39.87 + 2(x-5))
For an expression a + b, the terms are a and b
Hence, the terms in the first factor are 39.87 and 2(x-5)
The coefficient in the second term of the first factorIn (b), we have the second term to be 2(x - 5)
For an expression 5a, the coefficient is 5
Hence, the coefficient in the second term of the first factor is 2
The number of ridesThis part of the question cannot be solved due to missing information
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Are these right they are for my best friend and I have no clue HELP ME
Simplify (ab2 + 10 + a) – (6ab2 - 2ab + 8). I want it with steps please
➙ ( ab² + 10 + a ) - ( 6ab² - 2ab + 8 )
➙ ab² + 10 + a - 6ab² + 2ab - 8
➙ ab² - 6ab² + a + 2ab + 10 - 8
➙ -5ab² + 2ab + a + 2
➲ More information:
Polynomial s in two variables are algebraic expressions consisting of terms in the form of a x n y m .When adding or subtracting terms that have exactly the same same variable, we either add or subtract the coefficients .(PLEASE HELP TYSM) Identify which variable to isolate, then solve for the variable and set up an equation containing one variable using substitution. Do not solve your final equation.
Problem 1 (on the left)
We can solve for y in the second equation since the coefficient here is 1.
Having coefficients that aren't -1 or 1 means we'd likely end up with fractions.
Add 5x to both sides like so:
y - 5x = 19
y = 5x+19
Now plug this into the first equation.
-3x - 8y = 20
-3x - 8( y ) = 20
-3x - 8( 5x+19 ) = 20
At this point, we have only one variable.
We stop here because your teacher does not want you to solve the final equation.
-------------------
Answers:
Variable to isolate: y
It leads to y = 5x+19 after solving the second equation for y.
And further leads to -3x - 8( 5x+19 ) = 20 after substitution.
======================================================
Problem 2 (on the right)
This time we can solve for x in the second equation. The reasoning is the same (coefficient of 1). Subtract 3y from both sides to get:
x+3y = 1
x = -3y+1
Substitute this into first equation.
Everywhere you see an x, replace it with -3y+1.
-3x - 3y = -15
-3( x ) - 3y = -15
-3( -3y+1 ) - 3y = -15
Like before, we now have one variable left.
-------------------
Answers:
Variable to isolate: x
It leads to x = -3y+1 when you solve for x in the second equation.
And further leads to -3( -3y+1 ) - 3y = -15 after substitution.
In the graph on the right, the demand for hot dog buns has changed because the price of hot dogs has risen from $2.00
to $2.50 per package.
The cross-price elasticity of demand between hot dogs and hot dog buns is (Use the midpoint formula and enter your
response rounded to two decimal places. Be sure to include the minus sign if hecessary)
The calculation depicts that the cross elasticity of demand will be -0.625.
How to calculate the elasticityFrom the graph, the percentage change in the price of hot dogs will be:
= (3-2)/[(3 + 2)/2]
= 1/2.50
= 0.40
The percentage change in the quantity of hot dogs will be:
= (7000 - 9000) / (9000 + 7000) / 2
= -2000/8000
= -0.25
The cross elasticity of demand will be:
= -0.25/0.40
= -0.625
In conclusion, the cross elasticity of demand is -0.625.
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please help me I need this asap
Answer:
C=5
Step-by-step explanation:
just gotta distribute. hope this helps:)
Secondary School Maths. ANSWERS MUST BE FULLY AVAILABLE ON BRAINILY, SENDERS OF EXTERNAL LINKS WILL BE REPORTED
Answer:
see image
Step-by-step explanation:
First find the surface area of the triangular prism
Answer:
Front, 60, back 60, right, 30, left, 30. And the triangle's surface area is 15 + 15 = 30, And 20 / 2 = 10. SO the surface area is 190 cm^2
Step-by-step explanation:
Are these scalene triangles similar?
U
570
T
v
46°
R
65°
S
yes
Submit
Answer:
no, they have different angles. so they can't be similar.
Which is less, 8 ½ pounds or 130 ounces?
Write each in expanded form
347.046
5.902
0.593
Answer:
300+40+07+4/100+6/100005+9/10+2/10000+5/10+9/100+3/1000Please mark as Brainliest
Write this ratio as a fraction in simplest form without any units. 6weeks to 48 days
Answer:
1/8
Step-by-step explanation:
RatioA contrast, which exists between two particular numbers, is defined as ratio.6 weeks to 48 days6 : 48Equivalent Ratios1 : 82 : 163 : 244 : 325 : 406 : 487 : 568 : 649 : 7210 : 8011 : 8812 : 9613 : 10414 : 11215 : 12016 : 12817 : 13618 : 14419 : 15220 : 16021 : 16822 : 17623 : 18424 : 19225 : 20026 : 20827 : 21628 : 22429 : 23230 : 24031 : 24832 : 25633 : 26434 : 27235 : 28036 : 28837 : 29638 : 30439 : 31240 : 32041 : 32842 : 33643 : 34444 : 35245 : 36046 : 36847 : 37648 : 38449 : 39250 : 40051 : 40852 : 41653 : 42454 : 43255 : 44056 : 44857 : 45658 : 46459 : 47260 : 48061 : 48862 : 49663 : 50464 : 51265 : 52066 : 52867 : 53668 : 54469 : 55270 : 56071 : 56872 : 57673 : 58474 : 59275 : 60076 : 60877 : 61678 : 62479 : 63280 : 64081 : 64882 : 65683 : 66484 : 67285 : 68086 : 68887 : 69688 : 70489 : 71290 : 72091 : 72892 : 73693 : 74494 : 75295 : 76096 : 76897 : 77698 : 78499 : 792100 : 800Convert to fraction
6:48 is 6/48 as a fraction. Now simplify.
1. Find the GCD (or HCF) of numerator and denominator
GCD of 6 and 48 is 6
Divide both the numerator and denominator by the GCD
6 ÷ 6/
48 ÷ 6
Reduced fraction:
1/8
Therefore, 6/48 simplified to lowest terms is 1/8.
Layla was offered a job that paid a salary of $52,000 in its first year. The salary was set to increase by 2% per year every year. If Layla worked at the job for 16 years, what was the total amount of money earned over the 16 years, to the nearest whole number?
Answer:
$969,243 (nearest whole number)
Step-by-step explanation:
Use geometric sum formula:
[tex]S_n=\dfrac{a(1-r^n)}{1-r}[/tex]
where [tex]a[/tex] is the initial value and [tex]r[/tex] is the common ratio
We have been told that the initial value is 52000, so [tex]a=52000[/tex].
If Layla's salary increases by 2% per year, this means it is 102% of the previous year's salary. 102% = 102/100 = 1.02. Therefore, [tex]r = 1.02[/tex]
We need to calculate the sum of money earned over 16 years, so [tex]n = 16[/tex]
Inputting these values into the formula:
[tex]\implies S_{16}=\dfrac{52000(1-1.02^{16})}{1-1.02}=\$969,243 \ \textsf{(nearest whole number)}[/tex]
an item is regularly priced at $42. It is now priced at a discount of 70% off the regular price.
Answer:
42
Step-by-step explanation:
70 divided by 0.60
Math
Write an equivalent expression.
7.2 + (2x +0.4)
DO
Choose the correct answer below.
O A. (7.2 +0.4) + 2x
OB. (7.2 +0.4) + 2
oc. (7 + 2) + 2x
OD. 7.2 + (2 +0.4)
[tex]\qquad \qquad\huge \underline{\boxed{\sf Answer}}[/tex]
Here's the solution ~
[tex]\qquad \sf \dashrightarrow \: 7.2 + (2x + 0.4)[/tex]
[tex]\qquad \sf \dashrightarrow \: 7.2 + 2x + 0.4[/tex]
[tex]\qquad \sf \dashrightarrow \: 7.2 +0.4 + 2x[/tex]
[tex]\qquad \sf \dashrightarrow \: (7.2 +0.4) + 2x[/tex]
Therefore, the correct choice is A
Answer:
A. (7.2 +0.4) + 2x
Step-by-step explanation:
7.2 +1 (2x + 0.4)
7.2 + 2x + 0.4
7.6 + 2x or 2x + 7.6
A. (7.2 +0.4) + 2x
7.6 + 2x or 2x + 7.6
This one is correct
B. (7.2 +0.4) + 2
7.6 + 2
9.6
This one is INcorrect
C. (7 + 2) + 2x
9 + 2x or 2x + 9
This one is INcorrect
D. 7.2 + (2 +0.4)
7.2 + 2.4
9.6
This one is INcorrect
Hope this helps!
5+7/9+4/12
Someone tell me the ans pls
Answer:
55/9
Step-by-step explanation:
[tex]5+\dfrac79+\dfrac{4}{12}=\dfrac51+\dfrac79+\dfrac{4}{12}[/tex]
We need to make the denominators the same:
[tex]\implies\dfrac{5\times 36}{1\times 36}+\dfrac{7\times 4}{9\times 4}+\dfrac{4\times 3}{12\times 3}=\dfrac{180}{36}+\dfrac{28}{36}+\dfrac{12}{36}[/tex]
Now simply add the numerators:
[tex]\implies \dfrac{180}{36}+\dfrac{28}{36}+\dfrac{12}{36}=\dfrac{220}{36}[/tex]
Simplify by reducing:
[tex]\implies \dfrac{220}{36}=\dfrac{55}{9}[/tex]
Solution as a mixed number: [tex]6\frac19[/tex]
6. A shipping container has a rectangular base with dimensions 8 feet by 40 feet. The volume of
the shipping container is 3,040 cubic feet. How tall is the shipping container?
Answer:
9.5 feet
Step-by-step explanation:
The volume of a prism is V = Bh, where B = AREA of the base and h = height of the prism.
We're given:
Dimensions of Base (8 and 40)Volume of prism (3,040)3040 = 320hNow, we divide 3040 by 320 and get the height in feet.
3040/3209.5Therefore, the shipping container is 9.5 feet.
Answer:
9.5 feet
Step-by-step explanation:
we are given 8 feet by 40 feet meaning that we multiply 8 with 40
8 x 40 = 320
after that we take the cubic feet shipping container measure 3040
3040/320
=9.5 feet tall
What is the Measure of angle AOE in the figure below?
Answer:
The answer is D: 130
Step-by-step explanation:
(3x-28) +90+(66-x) = 180
2x + 128 = 180
2x = 52
x = 26
Therefore Angle AOE = 90 + (66-26)
= 130
HELPPP THIS IS DUE IN 3 MINS!
Nevaeh has a points card for a movie theater.
She receives 30 rewards points just for signing up.
She earns 12.5 points for each visit to the movie theater.
She needs at least 135 points for a free movie ticket.
Write and solve an inequality which can be used to determine vv, the number of visits Nevaeh can make to earn her first free movie ticket.
Answer:
8.4
Step-by-step explanation:
30 + 12.5x > or equal to 135
135 - 30 = 105
105/12.5
x= 8.4
Please mark brainliest!
Have an amazing day!
a.) 7
b.) 8
C) 5
d.) 6
Find value x and z!!!!!!!!!!!!!!!!!!
Answer:
[tex]x[/tex] = 3°
[tex]z[/tex] = 106°
Step-by-step explanation:
Since the angles are opposite each other, we know that [tex]9x+47[/tex] = 74°. We can use this information to solve for [tex]x[/tex]:
74° = [tex]9x+47[/tex]
27° = [tex]9x[/tex]
3° = [tex]x[/tex]
Since we know the whole system has to add up to 360°, or one rotation we can find what [tex]z[/tex] + the angle opposite it is equal to, and from there find [tex]z[/tex]:
360° = 2(74°) + 2[tex]z[/tex]
360° = 148° + 2[tex]z[/tex]
212° = 2[tex]z[/tex]
106° = [tex]z[/tex]
Given the figure below , find the values of x and z
Given : -Angle 1 = 74°Angle 2 = z°Angle 3 = ( 9x + 47 ) °To find : -Values of x and zConcept : -For doing such types of questions we must have concept and knowledge of linear pairs of angles and vertically opposite angles .
So let's Starting the Solution : -As we know that Angle 1 and Angle 3 are vertically opposite angles . Therefore , we can equate them and easily find the value of x . So :
9x + 47 = 749x = 74 - 479x = 27x = 27/9x = 3°Therefore , value of x is 3° .
Now Verifying :
9 ( x ) + 47 = 749 ( 3 ) + 47 = 7427 + 47 = 7474 = 74L.H.S = R.H.SHence , Verified .Therefore , our value for x is correct .
Now , finding value of z :As we know that Angle 1 and Angle 2 are Linear pair . Therefore , there sum is equal to 180° . So :
z + 74° = 180°z = 180° - 74°z = 106°Therefore , value of z is 106° .
Now Verifying :
106° + 74° = 180°180° = 180°L.H.S = R.H.SHence , Verified .Therefore, our answer is correct .
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