Answer: 15
Step-by-step explanation:
40- 24 = 16
16 dollars worth of candy
1.25 dollars per candy x 12 candy bars = $15 dollars of candy worth
15 is the closest answer because if u multiply 13 with 1.25 it will be 16.25 which is over the price
Answer:
Step-by-step explanation:
You know he has $40, and you know the game is $24.
Subtract $24 from 40, and you end up with $16.
Find out how many times 1.25 goes into 16, (12) and you know that he can buy 12 candy bars.
One less than five times a number is fewer
than twenty-four.
Answer:
x < 5
Step-by-step explanation:
[tex]5x - 1 < 24\\5x < 25\\x < 5[/tex]
Answer:
any number under 5
Step-by-step explanation:
5(5) -1 =24
so anything under that would equal fewer than 24
Is this what you're asking?
47.5% of children say that chocolate chip cookie is their favorite kind of cookie. If you randomly select 12 children find the probability that: a) at least 10 of them say that chocolate chip cookie is their favorite cookie. B) four of them say that chocolate chip cookie is their favorite cookie. C) Find the mean and standard deviation for this sample.
Answer: a) 0.0125 b) 0.1454 c) Mean = 5.7, standard deviation = 1.73
Step-by-step explanation:
Let x = Number of children say that chocolate chip cookie is their favorite kind of cookie.
x follows binomial distribution.
Binomila distribution formula:
[tex]P(X=x)=\ ^nC_xp^x(1-p)^{n-x}[/tex] , where p = probability in each trial, n = sample size, x= number of successes
Sample size : n= 12, p=0.475
a)
[tex]P(x\geg10)= P(x=10)+P(x=11)+P(x=12)\\\\=\ ^{12}C_{10}(0.475)^{10}(1-0.475)^{2}+^{12}C_{11}(0.475)^{11}(1-0.475)^{1}+^{12}C_{12}(0.475)^{12}(1-0.475)^{0}\\\\=\dfrac{12!}{2!10!}(0.475)^{10}(0.525)^{2}+(12)(0.475)^{11}(0.525)^{1}+(1)(0.475)^{12}\\\\\approx0.0125[/tex]
b)
[tex]P(x=4)= ^{12}C_{4}(0.475)^4(0.525)^{8}\\\\=\dfrac{12!}{4!8!}(0.000293798)\\\\=0.1454[/tex]
c) Mean = np
= (12)(0.475) =5.7
Standard deviation = [tex]\sqrt{np(1-p)}[/tex]
[tex]=\sqrt{12\times0.475\times0.525}\\\\=\sqrt{2.9925}\approx1.73[/tex]
If a quadrilateral is a rectangle, then it is a parallelogram (True or False)
The simplest rationalisation factor of root 3-root 5
Answer:
The simplest rationalising factor of 2sqrt(5)-sqrt(3) is 2sqrt.
Step-by-step explanation:
√3+√5 rationalising factor=√3+√5×√3-√5=√3^2=3-5= -2.
I hope it is helpful. Please mark it as Brainliest Answer.
What are these two answers,explanation needed
Step-by-step explanation:
1) k(x)= -3x²-3
k (-2)= -3×(-2)²-3
= -12-3
= -15
3)k(a)=a+4
k(0)= 0+4=4
hope it helps.
What is the value of x?
Answer:
40
Step-by-step explanation:
4x=180-20
4x=160
X=40
In a group of 60 students, 15 liked maths only, 20 liked science only and 5 did not liked any of two subjects. How many of them liked at least one subject?
Answer:
35
Step-by-step explanation:
Given
n (A) = 15
n (B) = 20
Students who do not like any subject = 5
Hence, number of students who would like either both or either of the two subjects = 60-5 = 55
n (A or B) = n (A) + n (B) - n (A and B)
Number of students linking both the subjects
55 - 15-20
= 55-35 = 20
Number of students linking only one subject = 60-20-5 = 35
The expression 5 + 5x is equivalent to the expression
Answer:
5(1+x)
Step-by-step explanation:
can someone help me solve 2x=9.
Answer:
x = 4.5
Step-by-step explanation:
You can find this ous by dividing 9 by 2, giving you 4.5! Hope this helped!
Will give brainliest to first answer
Answer:
x-28
y46
z65
Step-by-step explanation:
A supermarket had a bags of red grapes for $13 for five bags they also had bags of green grapes purchased at $5.08 for two bags which type of grab is more expensive
Find X. Round to the nearest tenth please help!
Answer:83.0°
Step-by-step explanation:
Given ∆XYZ, with 3 known sides, to find angle X, apply the Law of Cosines, c² = a² + b² - 2ab*cos(C).
For convenience sake, this formula can be rewritten to make the angle we are looking for the subject of the formula.
Thus, we would have this following:
Where,
C = X = ?
a = 8 ft
b = 16 ft
c = 17 ft
Cube M has an edge length of
8 centimeters. The edge length is
doubled to create Cube N. How many
times greater is the surface area of Cube
N than the surface area of Cube M?
Answer:
4
Step-by-step explanation:
6*(8*2)^2/(6*8^2)=2^2=4
A circle's circumference is approximately 88 cm. Estimate the diameter, rounding to the nearest WHOLE number. (don't forget your units and use 3.14 if you need to use )
Answer:
diameter = 28 cm
Step-by-step explanation:
circumference = 2πr
88 cm = 2 * 3.14.*r. ( π = 3.14 )
r = ( 88)/(3.14*2)
r = 14 cm
diameter = 2 * radius
diameter = 2 * 14 cm
diameter = 28 cm
Answer:
28 cmStep-by-step explanation:
Circumference formula:
C = πdSubstitute values of circumference and the π to find the diameter:
d = C/πd = 88/3.14 = 28 cm (rounded)Write the word sentence as an inequality.
A number z times 3 is at most -4.8
Answer and you’ll get brainliest answer if correct!
Answer:
3z < -4.8
* be sure to use the less than or equal to sign
Step-by-step explanation:
The inequality for the A number z times 3 is at most -4.8 is 3x < -4.8
What is Inequality?Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
Given:
A number z times 3 is at most -4.8
Now, the mathematical expression is
3z < -4.8
and, z< -1.6
Hence, the inequality is 3x < -4.8
Learn more about inequality here:
https://brainly.com/question/28823603
#SPJ2
simplify
11x-4x+26
i need help quick
Answer:
Step-by-step explanation:
Here you go mate
Step 1
11x-4x+26 Equation/Question
Step 2
11x-4x+26 Simplify
11x-4x+26
Step 3
11x-4x+26 Combine like terms
(11x+-4x)+(26)
Step 4
(11x+-4x)+(26) Add them together
answer
7x+26
Hope this helps
ABCD is a parallelogram. If mZCDA = 63, then mZABC = _?_ The diagram is not to scale.
Answer:
b. 63
Step-by-step explanation:
A Parallelogram is known to be a flat shape quadrilateral which has four opposite sides Each two opposite sides are parallel and are equal in length. The opposite angles are equal.
The above answer is correct because opposite angles of a parallelogram are equal:
m∠CDA = m∠ABC
where m∠CDA = 63
∴ m∠ABC = 63 (answer)
Simply the product.
(2y – 5)(3y + 1)
A. 6y2 + 13y - 5
B. 6y2 – 13y - 5
C. 6y2 + 17y + 5
D. 6y2 – 13y + 5
Answer:
6y2 - 13y - 5............
Mike a local auto mechanic charges a certain amount to diagnose and repair car he bases his price on the amount of time that it takes for the car to be repaired what is the rate of change in the graph.
Answer:
200
Step-by-step explanation:
The time spent repairing the car is five hours while the total cost is about 200 bucks
The table of values represents a linear function. For this function, what is the value of y when x = 4?
х
-4
0
4
6
y
3
4
?
5.5
y =
Given the table of values that represents a linear function, the value of y when x = 4 is: 5.
Recall:
Equation of a linear function can be modelled as y = mx + b.m = slope; b = y-intercept.slope (m) = change in y / change in xy-intercept (b) is the value of y at x = 0.Find the slope of the linear function, using two pairs of values, (-4, 3) and (0, 4):
Slope (m) = (4 - 3)/(0 - (-4)) = 1/4
y-intercept (b) = 4 (from the table, when x = 0, y = 4).
Write the equation that models the function by substituting m = 1/4 and b = 4 into y = mx + b:
y = 1/4x + 4
Thus, to determine the value of y when x = 4, substitute x = 4 into y = 1/4x + 4:
y = 1/4(4) + 4
y = 1 + 4
y = 5.
Therefore, given the table of values that represents a linear function, the value of y when x = 4 is: 5.
Learn more about linear function on:
https://brainly.com/question/24502219
BRAINLIEST FOR THE CORRECT AWNSER!! PLEASE PUT THE LETTER AWNSER AND EXPLAIN DO NOT LIE THANK YOU What is the goal of a proof by contradiction? A. The contradiction of the statement is proven false, so the original statement is therefore proven true. B. The contradiction of the statement cannot be determined, so the proof is invalid. C. The truth of the statement cannot be determined, so the proof is invalid. D. The contradiction of the statement is proven true, so the original statement is therefore proven false.
Answer:
A
Step-by-step explanation:
We assume the opposite and then get to a point where we get a false statement. That proves that the the opposite of the opposite (What we originally wanted to prove) is true.
Zachary ate 88 out of g gumdrops. Choose the expression that shows how many gumdrops Zachary has left.
A. 88-g
B. G+88
C. G
D. G-88
The measure of an angle is 17.3°. What is the measure of its complementary angle?
Answer:
72.7
Step-by-step explanation:
complementary angles: either of two angles whose sum is 90°.
90-17.3 = 72.7
Answer:
Complementary angle of 17.3° is (90°-17.3°)=72.7°
72.7° is the right answer.-4y + 3x - 2x - 5y - 4
Combining like terms
Answer:
I have
Step-by-step explanation:
No idea sorry
-3x-8>19?I have to solve for x
Answer:
x < -9
Step-by-step explanation:
Add 8 to both sides:
-3x - 8 > 19
-3x > 27
Divide each side by -3:
-3x > 27
Dividing by a negative number on each side switches the inequality:
x < -9
So, the answer is x < -9
Answer:
[tex] \huge \: x < - 9[/tex]
[tex]\huge \: x \in (-∞,-9)[/tex]
Step-by-step explanation:
to understand thisyou need to know about:inequalityPEMDASgiven:[tex]-3x-8>19[/tex]tips and formulas:the direction of inequality doesn't change when you
Add (or subtract) a number from both sidesMultiply (or divide) both sides by a positive numberSimplify a sidethe direction of inequality does change when you
Multiply (or divide) both sides by a negative numberSwapping left and right hand sideslet's solve:[tex]step - 1 : define \\ -3x-8>19[/tex]
[tex]step - 2 : \\ add \: 8 \: to \: both \: sides[/tex]
[tex]-3x-8 + 8>19 + 8[/tex]
[tex] - 3x >27 [/tex]
[tex]step - 3 \: \\ divide \: both \: sides \: by \: - 3 \: and \: swap \: the \: inequality[/tex]
[tex] \huge \therefore \: x < - 9[/tex]
If f(x) =4^x-8 and g(x)=5x+6find (f-g)(x)
Answer:
x= 10
Step-by-step explanation:
27÷6= 4.5
27×4.5= 6
so,
45÷4.5=10
Please help! It’s so confusing
F(2)=-5x+6 find value
Answer:
F(x) = 16
Step-by-step explanation:
F = 2. We find the value of -5x by inputting the value of the function into the x value.
F(x) = -5(2) + 6
F(x) = 10 + 6
F(x) = 16
PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG
how do u this? please explain...
The store price of a t-shirt is $50. if the markup set by the store is 30%. Calculate the markup the price set by the t-shirt.
Answer:
I won't answer but I'll give a hint
Step-by-step explanation:
1. Markup = markup percent x cost/store price
2. Selling price = markup price + cost/store price
3. Discount amount = discount percent x cost/store price
4. Selling price = cost/store price – discount amount