3/2 of pizza has been eaten by Alex and his friends.
What is Fraction?A fraction represents a part of a whole.
Given that Alex and 3 other friends each ate 3/8 of pizza.
We have to find the amount of pizza Alex and his friends eat in all.
Alex with other three friends makes 4 number of people.
Now four people each had an equal amount, which was 3/8 pizza.
4×3/8
Four times of three divided by eight.
We get three divided by two.
=3/2
Hence, 3/2 of pizza has been eaten by Alex and his friends.
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Please help with this question.
9514 1404 393
Answer:
136
Step-by-step explanation:
The attached chart shows the result of using the numbers in the problem statement to calculate the percentage of the population in each category.
95% accuracy on infected individuals is assumed to mean that 95% of the 2% who are infected return a positive test result. The other 5% return a negative test result.
Similarly, 90% accuracy on uninfected individuals is assumed to mean that 90% of the 98% who are not infected will return a negative test result, and the remaining 10% of those 98% will return a (false) positive test result.
Then of the 11.7% who return a positive test result, only 1.9% are actually infected. This fraction is a/b = 19/117, so ...
a + b = 19 + 117 = 136
_____
Additional comment
When forming ratios of percentages, one must be very clear about the base of the percentage. Above, the base for every percentage is the entire population of mathletes. The fraction 19/117 is the fraction of those who tested positive that are actually infected (about 16.2% of positives).
Answer:
the answer is 136
Step-by-step explanation:
:)))))
I NEED HELP QUICK!!!
Answer: 12cm
Step-by-step explanation:
Hi please help me with this asap.
A bag contains 20 marbles, of which 4 are red. What is the probability that a randomly selected marble will be red?
Select ALL that apply
A 115
B 4/20
C 2/10
05/2
The price of XYZ stock fluctuates widely. In January it closed at $3.50 but In February it Closed at $2.25. However at the end of March it shot back up to $5.00.
What was the average monthy change in the price of XYZ stock from january through march?
Answer:
$3.583
Step-by-step explanation:
Given the monthly stock prices :
January = $3.50
February = $2.25
March = $5.00
The average monthly change in price of XYZ stock from. JANUARY through MARCH is;
(January + February + March) / 3
Average monthly change :
(3.50 + 2.25 + 5.00) / 3
$10.75 / 3
= $3.583
Which graph represents a proportional relationship? A) B) D)
Answer:
Step-by-step explanation:
I need help with Algebra 2. Thank you! :)
Answer:
B: 6.0
Step-by-step explanation:
-3t^2+9t+54 = 0
This is the equation that needs to be solved
Divide both sides by -3
t^2 - 3t - 18 = 0
The factors of 18 are: (1 18) (2 9) (3 6)
3 - 6 = -3 and 3 x -6 = -18
So: (t + 3) (t - 6) = 0
t = -3, 6
It can't be negative so the answer is 6
BRAINLIEST PLS HELP ME
Answer: 81 m^2
Step-by-step explanation:
Take the area of the rectangle, (6m x 10m) and add it to the area of the triangle (1/2 of 6*7) and you get 81
For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 8 N acts on a certain object, the accelerstion of the object is 4 m/s2. If the acceleration of the object becomes 9 m/s?, what is the force?
8N = 4m/s^2
2N = 1m/s^2
18N = 9m/s^2
Hellllp!
Ahmed needs to cover a box that is 6 cm long, 4 cm high and 4 cm wide with
material on all sides. How much material does he need?
Will mark as brainlist
Thaaaaaanks
Answer:
he needs 128cm² materials
Step-by-step explanation:
surface area of cuboid =2(lb+bh+lh)
=2(6×4+4×4+6×4)=128cm²
PLEASE SAY A,B,C OR D OF THE RIGHT ANSWER ONLY PLEASE! no links or flies, x .
Javier read 712 of a book on Saturday, and 412 of the same book on Sunday. Which equation shows the fraction of the book that Javier read over the weekend?
A. 7/12 + 4/12 = 11/12
B. 7/12 – 4/12 = 3/0
C. 7/12 + 4/12 = 11/24
D. 7/12 – 4/12 = 3/12
Answer:
it should be C if not I'm so so sry
PLEASE LOOK AT THE IMAGE BELOW! (I MARK BRAINLIEST!)
Answer:
- 7 < - 5
Step-by-step explanation:
Because negative 7 is technically lower than negative 5. Due to them being negative the more closer you are to -1 the more higher of a number it is. I don't know how to explain it but I hope that it makes sense!
Have a wonderful day! <33
Find the volume of the cylinder.
Either enter an exact answer in terms of or use 3.14 for pi
Answer:
Answer in explanation
Step-by-step explanation:
Volume of cylinder =
[tex]\pi {r}^{2} h \\ = (3.14)(4) {}^{2}(8) \\ = 401.92units {}^{3} \: or \: 128\pi \: units^{3} [/tex]
Answer:
Step-by-step explanation:
Radius r = 4
Height h = 8
Volume = πr²h = 128π units³
The following is the estimation results for a multiple linear regression model:
Y = B. + ,X,+B,X, +E
SUMMARY OUTPUT
Regression Statistics
R-Square 0.558
Regression Standard Error (S) 863.100
Observations 35
Coeff StdError t-stat
Intercept 1283.000 352.000 3.65
X1 25.228 8.631
X2 0.861 0.372
Questions:
1. Write the fitted regression equation (30 points).
2. Write the estimated intercepts and slopes, associated with their corresponding standard errors (30 points).
3. Interpret each coefficient (40 points).
Answer:
Kindly check explanation
Step-by-step explanation:
Given the summary output :
_______ Coeff___ StdError__ t-stat
Intercept 1283.000_ 352.000 _ 3.65
X1 _____ 25.228 ____8.631
X2 _____0.861 _____0.372
General form of a multiple regression model:
Y = B1X1+B2X2 +E
The fitted regression equation is :
y = 25.228X1 + 0.861X2 + 1283
Intercept and slope corresponding to the standard error :
Intercept = 352
Slope 1 = 8.61 ; slope 2 = 0.372
'B' coefficient represents the change in the mean response, Y, per unit increase in a version predictor variable when all the other predictors are held constant.
B1 represents the change in the mean response, U, per unit increase in x1 when x2, x3, ..., xk are held constant
B2 represents the change in the mean response, U, per unit increase in x2 when x1, x3, ..., xk are held constant
If there are 2.54 cm in one inch, how many feet do 6090 cm equal?
1) 200 ft
2) 508 ft
3) 2400 ft
4) 15,483.84 ft
5) 28,000 ft
Brenda and her three friends ate dinner at Applebee’s. Their total bill was $24.36 which they spent equally. How much does each person pay?
plz explain how you got your answer
Answer:
8.12
Step-by-step explanation:
if m∠PQS = m∠TQR = 30° and m∠PQR = 85°, find m∠SQT. Question 7 options: A) 55° B) 115° C) 60° D) 25°
Answer:
Step-by-step explanation:
85-2*30=25
what is 15% of 22 help
HELP PLEASE
The diameter of a wheel is 13cm.
A. If it's driven forward so the wheel travels one full rotation, how far has the car traveled?
B. If the car has traveled a distance of 380cm, how many rotations has it traveled?
Answer:
A = 81.681409 (81.64 for 3.14 as pi) B = 4.65222141 (4.65458109 as 3.14 for pi) rotations
Step-by-step explanation:
To figure out how far one full rotation is (which is the circumference) you do the circumference formula: C = 2 pi r
C = 2 pi 13
C = 26pi
C = 81.681409
To figure out how many rotations C can fit into 380, divide 380 by C
380 / 81.681409 = 4.65222141
Evaluate the expression 4! ÷ (4-3)!
Answer:
24
Step-by-step explanation:
(4*3*2*1)/1
(4*3*2*1)
12*2
24
Multiply the following numbers. Reduce the answer to lowest terms.
3 1/5 x 2 1/7
Answer:
48/7
Step-by-step explanation:
= 3 1 × 2 1
5. 7
= 16 × 15
5. 7
= 240 , if we divide both numbers by 5 we get;
35
= 48
7
Which angle is congruent to B
Mike wants to join a gym. He has to pay an initiation fee of $16 and equal monthly payments for the year. The most he wants to pay is $580 for the year for his gym membership. a.) Write an inequality that you can use to determine the most he would want to spend for his monthly payments. *
Answer:
16+x*12≤580
Step-by-step explanation:
x would be the money you pay per month
Can I have brainliest plz
Hope dis helps :P
Answer:
16+x*12≤580
Step-by-step explanation:
The perimeter of the shape below is 44 feet. What is the area in square feet?
Answer:
2(4x+2+6x)=44
10x+2=22
10x=20
x=2
area= 10*12=120sq feet
Step-by-step explanation:
Which expression is equivalent to 7/4?
Answer:
1 3/4
Step-by-step explanation:
improper to mixed number
A shelf is built on a wall, as shown below. What is the value of x?
(2x+1) + (3x-1)
Answer:
x = 18
Step-by-step explanation:
We need to find the value of x.
We know that the sum of angles of a triangle is equal to 180°. So, using this property,
2x+1+3x-1+90 = 180
2x+3x = 180-90
5x = 90
x = 18
So, the value of x is equal to 18.
simplify [tex]\sqrt{p^4q^6r^5. answer is D just took the test
Nick is making bread.
He needs 103 cups of flour to make one whole loaf of bread.
He has 53 cups of flour.
Use the drop-down menus to complete the statements below about the bread that Nick can make.
Answer:
Well, I can't see the drop-down options but with that amount of flour, I suppose he could make one half of a loaf but he can't make an entire loaf.
Edit:
The answers for the drop-down options:
1.) Nick can make less than one whole loaf of bread.
2.) Nick can make exactly 1/2 loaf of bread with the flour he has.
Answer:
here you go...
easiest way to make a ratio into percentage
Answer:
To convert a ratio into the form of a percentage
Answer:
Simply divide m by n and then multiply the result by 100.Example: 12 : 4 = 300%top earning app/game of usa
Answer:
Pokemon Go
Step-by-step explanation:
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