Answer:
[tex]12[/tex]
Step-by-step explanation:
[tex]\frac{3}{5} \times 20[/tex]
[tex]\frac{60}{5}[/tex]
[tex]=12[/tex]
Answer:
12 students
Step-by-step explanation:
First make 3/5 into a percent or whole number because it's easier to solve that way. How do you do that? Divide it how it is, so 3/5 = 0.60. So 60% of her class has at least one pet.
Knowing this, we multiply 60% by 20 to know how many students are that 60% that have pets. So 0.6 x 20= 12
12 students have pets in Ms. Johnson's class
I don’t get it please help
Step-by-step explanation:
A) 1
B) 3
C)4
D)11
E)8.75
F)240
G)12
H)1.5
(Make the ratios equal to each other)
(In reduced versions of themselves)
Answer:
a. 1 person
b. 3 people
c. 25 track shirts
d. 12 CDs
e. $8.75
f. 240 miles
g. $12
h. 1.5 gallons of red paint
Step-by-step explanation:
find out what the new given denominator (bottom number)/ numerator (top number) and divide the missing denominator/numerator by the number founded for the given numerator. in example: 3 people/9 pizzas. we are given the denominator of 3 pizzas and 9 divided by 3 is 3. so if the denominator is is dived by 3 the numerator must be divided by 3 as well. vice versa (same thing) if it was the numerator was given.
Help me with this question
Answer:
Around 25.8 square units
Step-by-step explanation:
[tex]A=\dfrac{1}{2}(5)(18)(\sin 35)=\\\\45\cdot \sin 35\approx 25.8[/tex]
Hope this helps!
Teo has a combination of quarters, loonies, and toonies in his pocket.
He knows he has 9 coins in total and that he has at least one of each
type of coin.
a) hwo many outcomes end with over 8$
b) How many different combinations of coins could Teo use to pay for an item
that costs between $10 and $12, if he uses fewer toonies than loonies?
Answer:
343
Step-by-step explanation:
There are quarters(25¢), loonies ($1), and toonies ($2)
And total number of coins is 9
If loonies ($1), and toonies ($2) are one, then quarters(25¢) is 7
If quarters(25¢), and toonies ($2) are one, then loonies ($1)is 7
If loonies ($1), and quarters(25¢) are one, then toonies ($2) is 7
So possible number number of combination for an item that cost between $10 and $12 is
= 1^3 * 1^3 * 7^3
= 343
hope this helps, stay safe :)
The number of different combinations of coins could Teo use to pay for an item that costs between $10 and $12 is 17.
What are Combinations?Combinations are defined as the arrangement of objects or numbers in a way such that the order of the arrangement does not matter.
Given that,
Teo has a combination of quarters, loonies, and toonies in his pocket.
Total number of coins = 9
1 quarter = $0.75
1 loonie = $1
1 toonie = $2
If he uses fewer toonies than loonies,
Total number of combinations of 9 coins = 1³ × 1³ × 7³ = 343
We need the number of combinations in between $10 and $12.
We can form the following combinations.
(2 × $1) + $2 gives $4. Remaining can be 8, 9 and 10 quarter coins.
(3 × $1) + (2 × $2) gives $7. Remaining can be 4, 5 and 6 quarter coins.
(3 × $1) + (1 × $2) gives $5. Remaining can be 7, 8 and 9 quarter coins.
(4 × $1) + (3 × $2) gives $10. Remaining can be 1 or 2 quarter coins.
(4 × $1) + (2 × $2) gives $8. Remaining can be 3, 4 and 5 quarter coins.
(4 × $1) + (1 × $2) gives $6. Remaining can be 6, 7 and 8 quarter coins.
Total number of combinations = 3 + 3 + 3 + 2 + 3 + 3 = 17
Hence the total number of combinations are 17.
Learn more about Combinations here :
https://brainly.com/question/28042664
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The length of TR is 17 units. What are the lengths of SV and QT? (please hurry i dont get this question) also i need each individual answer, not SV + QT, I need SV and QT
Answer:
QT = 21SV = 41Step-by-step explanation:
From the diagram, it can be seen that TR is parallel to RV. This means that TR = RV. Given TR = 17 and RV = 3x+2
3x+2 = 17
3x = 17-2
3x = 15
x = 5
RV = 3(5)+2 = 17
QV = 4x+1 = 4(5)+1
QV = 21
Using Pythagoras theorem on ΔQRV to get RQ
QV² = QR²+RV²
21² = QR²+17²
QR² = 21²-17²
QR = 12.33
Using Pythagoras theorem on ΔQRT to get QT
From ΔQRT,
QT² = QR²+TR²
QT² = 12.33²+17²
QR² = 152.0289+289
QT² = 441.0289
QT =21
Since TS = 9(5)-4 = 41
Using Pythagoras theorem on ΔTRS
From ΔTRS,
TS² = RS²+TR²
41² = RS²+17²
RS² = 41²-17²
RS² = 1392
RS = 37.31
Similarly Using Pythagoras theorem on ΔRSV
From ΔRSV,
SV² = RV²+RS²
SV² = 17²+37.31²
SV² = 1681.0361
SV = 41
Answer:
SV=41
QT=21
Step-by-step explanation:
Got it right on ed
Sonia is hanging up decorations in the ratio of 3red: 2green: 4white . If she hangs up 135 decorations in total , how many of each colour does she hang up
Answer:
She hung 45reds, 30greens and 60whites
Step-by-step explanation:
If Sonia is hanging up decorations in the ratio of 3red: 2green: 4white, the total amount of different she hung is 3+2+4 = 9different colours.
Of she hung 135decorations in total, the number of red = 3/9 × 135 = 45reds
Number of green = 2/9 × 135 = 30greens
Numbe of white = 4/9 × 135= 60whites
She hung 45reds, 30greens and 60whites
PLEASE HELP! I WILL MARK BRAINLIEST IF U ANSWER WITHIN THE NEXT 2 MINS!
Answer:
-1\4 is the correct answer
which graph shows a reflection across the y-axis?
Answer:
A.
Step-by-step explanation:
graph a shows reflection across the y axis
Answer:
the correct answer is B
Step-by-step explanation:
the image for A is incorrect because that would be reflecting across the x-axis
the image for B is correct because it is literally going across the y-axis (ik it sounds very simple but it's true)
the image for C is incorrect because it doesn't even go across the y-axis or x-axis, it's only in the third quadrant
HOPE THIS HELPS!! :D
Solve the system of equations. y= 4x + 5 y=x2+12x+20
Answer:
x1 = -3
x2 = -5
y1 = -7
y2 = -15
Step-by-step explanation:
y = 4x +5
y = x2+12x+20
substitute y in second equation with first and solve quadratic equation
4x+5 = x² +12x + 20
x²+8x + 15 =0
D= b² - 4ac
a = 1
b = 8
c = 15
D = 64 - 60 = 4
D>0 => 2 real roots
x1 = [tex]\frac{-b+\sqrt{D} }{2a}[/tex]= (-8+2)/2 = -3
x2 =[tex]\frac{-b-\sqrt{D} }{2a}[/tex] = (-8-2)/2 = -5
having roots of x we can calculate y
y1 = 4x1+5 = 4*-3 +5 = -12 +5 = -7
y2 =4x2+5 = 4*-5+5 = -20 + 5 = -15
x1 = -3
x2 = -5
y1 = -7
y2 = -15
You are playing a board game with a friend. She owns and has developed the tiles Green Gardens and Silver Sidewalks. If you roll an 8, you will land on Green Gardens and owe her $1500. You will be able to pay, but you will not have money left afterward. If you roll a 9, you will land on the tile King's Taxes and have to pay $75. If you roll a 10, you will land on Silver Sidewalks and owe her $2000, which is more than you can pay—and lose the game. If you roll a 7 or less, you will not have to pay any money to anyone. Your friend offers you insurance. Pay her $500 before you roll and even if you land on Green Gardens or Silver Sidewalks, you will not have to pay any additional money. However, if you roll a 7, you will have to pay her $1000. Use probabilities to find expected values. Then compare the amount of money you should expect to pay out on average, under her insurance and by chance. Is her deal fair?
Answer:
The expected value can be calculated as:
Es = x₁*p₁ + x₂*p2 + .....
where xₙ is the event (the amount of money that you win or lose, and pₙ is the probability for the event)
for example, in a 10 side dice, the probability of obtaining a specific number is 1/10.
we have a d10 i guess (a dice with 10 sides, 1 to 10)
if you roll from 1 to 7, nothing happens.
If you roll an 8, you lose $1500
if you roll a 9, you lose $75
if you roll a 10, you lose $2000 (and the game)
the expected value is,
Es = 1/10*(7*0 - 1*$1500 - 1*$75 - 1*$2000) = -$357
in the second case, you start paying $500.
if you roll a 7, you must pay $1000, if else, nothing happens.
Then the expected value is
Es = -$500 - 1/10*(-1*$1000 + 9*$0) = -$600
So the expected value is smaller in this case, so the deal is not fair
A line contains points M, N, O, P, Q, R, S with arrows instead of endpoints. Which point is located on ray PQ? point M point N point O point R
Answer:
Point R
Step-by-step explanation:
did test and Quizlet
Answer:
The answer is point R
Step-by-step explanation:
Match the vocabulary word to its correct definition. 1. abscissa the variable representing the first elements of the ordered pairs in a function; the inputs 2. dependent variable the second number (or y value) of an ordered pair 3. independent variable the variable representing the second elements of the ordered pairs in a function; the outputs 4. ordinate the first number (or x value) of an ordered pair
Answer:
1. Independent variable
2. Ordinate
3. Dependent variable
4. Abscissa
Step-by-step explanation:
1. The variable representing the first elements of the ordered pairs in a function; the inputs: this is the independent variable or the predictor variables.
2. The second number (or y value) of an ordered pair: Ordinate, also known as the y coordinate
3. the variable representing the second elements of the ordered pairs in a function; the outputs: the dependent variable also known as the response variables or the outcome variables.
4. The first number (or x value) of an ordered pair: abscissa, also called the x coordinate
Answer:
1. the first number (or x-value) of an ordered pair
4
ordinate
2. the variable representing the second elements of the ordered pairs in a function; the outputs
3
independent variable
3. the variable representing the first elements of the ordered pairs in a function; the inputs
2
dependent variable
4. the second number (or y-value) of an ordered pair
1
abscissa
Step-by-step explanation:
PLEASE HELP ASAP !!What value of g makes the equation true ? (X+7)(x-4)=x^2+ge-28
Answer:
g=3
Step-by-step explanation:
(x+7)(x-4)=x(x-4)+7(x-4)=x²-4x+7x-28=x²+3x-28
it should be gx ,then g=3
if ge then ge=3x
Answer:g=3x
Step-by-step explanation:
I wrote this in the comments to but now it’s allowing its allowing me to answer so here: simplify the left side by distributing the values and it turns out to be x^2+3x-28 and the right side stays the same. We write this as x^2+3x-28=x^2+g-28. We then simply by the addition property of equality by adding 28 to both sides. We are left with x^2+3x=x^2+g. We then subtract x^2 from both sides ending up with g=3x.
Which Function has the graph shown
A. y = cotx
B. y = - tan x
C. y = cos x
D. y = CSC X
Answer:
B.
Step-by-step explanation:
The graph of tan is the one that looks like a repeated asymptote of x³. Simply flip it across the x-axis (multiply by -1) and it should look like what is shown in the graph.
The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. The function below shows the relationship between f(x) and x: f(x) = 10(1.3)x Which of the following graphs best represents the function? (1 point) Graph of f of x equals 1.3 to the power of x Graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity Graph of f of x equals 1.3 multiplied by 10 to the power of x Graph of f of x equals 10 multiplied by 1.3 to the power of x
Answer:
f(x)=3/10x ?
Step-by-step explanation: Guess
Which equation matches the graph?
A. y - 2= 3(× -2)
B. y - 2= 3(×+2)
C. y + 2= -3(×+2)
D. y - 2= -3(x-2)
The after-school program at Longwood Middle School is planting a trapezoidal community garden.
75 ft on the left side, 102 On The Bottom, 85 ft On The Right Side
What is the area of the garden?
A. 6,375 ft2
B. 7,650 ft2
C. 8,160 ft2
D. 8,670 ft2
Answer:
C
Step-by-step explanation:
Here, we are told that the school is trying to plant a garden which is trapezoidal in shape and we want to calculate the area of this said garden.
Mathematically, the area of the garden can be calculated using the formula;
A = 1/2 (a + b)h
here in this question, a is the value on the right hand side which is 75 ft, b is the value on the left hand side which is 85ft while h is the value on the bottom
which is 102 ft
Inserting these values into the equation, we have:
A = 1/2( 75 + 85) * 102
A = 1/2 * 160 * 102
A = 8,160 ft^2
If f(x)=2x^2+5 √(x-2)
What does f(3)=?
Can someone help me with B?
Answer:
8
Step-by-step explanation:
12/15 = x/10
cross multiply and you get 120 = 15x
divide both sides by 15, x=8
You just got a free ticket for a boat ride, and you can bring along 333 friends! Unfortunately, you have 666 friends who want to come along.
3x^2-6×=0 solve for x factor if necessary
Answer:
x =0 x=2
Step-by-step explanation:
3x^2 -6x = 0
Factor out a 3x
3x(x -2)=0
Using the zero product property
3x = 0 x-2 =0
x =0 x=2
Can someone please help me with my homework:(
Answer:
118.3
Step-by-step explanation:
The formula for the area is a triangle is base*height/2
Area = 18.2*13/2 = 118.3
Answer:
118.3
1/2b×h
1/2(13)x18.2
6.5×18.2
118.3m^2
The diagram below shows vector v. Given transformation matrix t= 2 0 0 2 which diagram shows the application of T to v?
Answer:
The answer is A.
Step-by-step explanation:
I just took the test and got a 100%
What is the answer to this a school has 764 students. Of the students 118 are in third grade. Which equation can be used to find s, the total number of students in all the other grades.
Answer:
764-118=s
Step-by-step explanation:
The school has 764 students. Taking away the third graders will let you know how many are left in the other grades. Please marl brainliest.
Oh, and assuming you want the total number in each grade, 1-6? its (764-118)%5=s
Answer:
118+s=764 is the correct answer.
What is the surface area of the rectangular prism below?
7 12 14
Answer:
A=700
Explaination:
A=2(wl+hl+hw)=2·(12·7+14·7+14·12)=700
plz help!
solve for t
Answer:
t can equal 7 or -7
Step-by-step explanation:
Answer:
t=7 or t=-7
Step-by-step explanation:
To solve for t, we need to get t alone. To do this, perform the opposite of what is being done to the equation. Keep in mind, everything must be performed to both sides.
t^2=49
t is being squared. The opposite of squared is the square root. Take the square root of both sides.
√t^2=√49
t=√49
t=±7
So, t is equal to 7 or -7
pls help i need to pass this class lol
The circumference of a circle measures the distance around the circle.
True or False
Answer:
True
Step-by-step explanation:
Answer: True
Step-by-step explanation:
Express your answer in scientific notation. 4.9\cdot 10^{5} - 5.8 \cdot 10^{4} =4.9⋅10 5 −5.8⋅10 4 =4, point, 9, dot, 10, start superscript, 5, end superscript, minus, 5, point, 8, dot, 10, start superscript, 4, end superscript, equals on khan academy Adding & subtracting in scientific notation.
Answer:
[tex]4.32*10^{5}[/tex]
Step-by-step explanation:
Given the expression [tex]4.9*10^{5}-5.8*10^{4}[/tex], to solve the expression, we need to write both scientific notation to the same power of 10.
[tex]5.8*10^{4} is \ expressed\ as \ 0.58*10^{5}[/tex]
The expression above becomes [tex]4.9*10^{5}-0.58*10^{5}[/tex]. On taking the difference;
[tex]4.9*10^{5}-0.58*10^{5}\\= (4.9-0.58)*10^{5} \\= 4.32*10^{5}[/tex]
The final expression gives the right answer
i need help with finding x.
Answer:
Step-by-step explanation:
x+100+x = 180 (angles in a straight line)
2x=180-100
2x = 80
x =80/2
x = 40
please mark me as the brainliest
hope it helps you.
What is the slope-intercept form equation of the line that passes through (1, 3) and (3, 7)?
Answer:
y=2x+1
Step-by-step explanation:
