Answer:
2/x + 9
Step-by-step explanation:
2/x is a fraction, but it also means divided by. More than means flip the addition to the end of the equation.
What is the answer for A?
Answer:
a=2B/d-l
Step-by-step explanation:
da-la=2B
1) Factor out an a from (da-la):
a(d-l)=2B
2) Divide both sides by (d-l):
a=2B/d-l
A rectangle strip of land is 2 1/2 miles wide its area is 5/6 square mi.² what is the length of the strip of land
Answer:
1/3 mile
Step-by-step explanation:
Answer:
1/3 mile
Step-by-step explanation:
A rectangle strip of land is 2 1/2 miles wide its area is 5/6 square mi.² what is the length of the strip of land
One day last week, 6 teachers joined 5/7 of the members of the running club in an after-school run. Priya counted a total of 31 people running that day. How many members does the running club have?
Answer:
The running club has 35 members
Step-by-step explanation:
Let
x ----> the total members of the running club
we know that
The total members of the running club multiplied by 5/7 plus 6 must be equal to 31 people
so
[tex]\frac{5}{7}x+6=31[/tex]
Solve for x
[tex]\frac{5}{7}x=31-6[/tex]
[tex]\frac{5}{7}x=25[/tex]
[tex]x=25(7)/5[/tex]
[tex]x=35\ members[/tex]
therefore
The running club has 35 members
Probability of a male having a blood circulation problem, given he's a smoker, is approximately 0.6667.
Step 1:
Identify the given probabilities:
Let [tex]\( P(A) \)[/tex] be the probability that a randomly chosen male has a blood circulation problem, which is [tex]\( 0.25 \)[/tex].
Let [tex]\( P(B|A) \)[/tex] be the probability that a male is a smoker given that he has a blood circulation problem, and it's twice the probability of being a smoker given not having a blood circulation problem.
Step 2:
Calculate [tex]\( P(B|\neg A) \)[/tex]:
Since males with blood circulation problems are twice as likely to be smokers as those without, \( P(B|\neg A) \) is half of [tex]\( P(B|A) \)[/tex], which is [tex]\( \frac{1}{2} \)[/tex].
Step 3:
Apply Bayes' theorem:
[tex]\[ P(A|B) = \frac{P(B|A) \times P(A)}{P(B)} \][/tex]
Step 4:
Calculate \( P(B) \):
[tex]\[ P(B) = P(B|A) \times P(A) + P(B|\neg A) \times P(\neg A) \][/tex]
Step 5:
Substitute values into Bayes' theorem and solve:
[tex]\[ P(A|B) = \frac{(2 \times P(B|\neg A)) \times P(A)}{(2 \times P(B|\neg A)) \times P(A) + P(B|\neg A) \times (1 - P(A))} \]\[ P(A|B) = \frac{(2 \times \frac{1}{2}) \times 0.25}{(2 \times \frac{1}{2}) \times 0.25 + \frac{1}{2} \times (1 - 0.25)} \]\[ P(A|B) = \frac{0.25}{0.25 + 0.125} \]\[ P(A|B) = \frac{0.25}{0.375} \]\[ P(A|B) \approx 0.6667 \][/tex]
Thus, the probability that a male has a blood circulation problem, given that he is a smoker, is approximately 0.6667.
What times what equals 640
Answer: 8 x 80
Step-by-step explanation: if you multiply 8 x 80 then you can just act as if the 80 is 8 and once you do the multiplication add the 0 at the end when your done.
Katie collects stamps. She has stamps from Canada, the U.S.A, and the rest of the world in a ratio of 1: 1.2: 1.5. She has 135 stamps from the rest of the world.
a) How many stamps are from Canada?
b) How many stamps are from the U.S.A?
c) What is the total number of stamps in Katie's collection?
(Please explain and show how you got those answers.)
Answer:
Step-by-step explanation:
: I got A)90
B)108
C)333
Hope that's right. I checked it 4 times.
Answer:
Step-by-step explanation:
A) 90
B) 108
C)333
How do you do scientific notation with the number 0.2058
Answer:
2.058 x 10 to the -1st
Step-by-step explanation:
What’s the algebraic expression of ? Twice the sum of a number n and 2 ?
A 2(n+2)
B n+2•2
C 2n+2
D 2+(n+2)
Answer:
A is the answer. 2(n+2)
Answer:
A
Step-by-step explanation:
The sum of a number n and 2 is n + 2
Twice this sum is
2(n+ 2) → A
Bailey drove 290 miles in 4 hours. Find the miles per hour.
Answer:
72.5 miles/hour
Step-by-step explanation:
When we say "miles per hour" in English this just is simply the question "If Bailey drove for only one hour, how far did she go?". Now mathematically we can find this very easily by simply dividing 290 by 4, which is equal to 72.5. So Bailey travels 72.5 miles every hour.
If it is confusing about why we do this, think about splitting up 290 miles evenly between 4 hours, how many miles does each hour 'get'. Each would 'get' 72.5 miles. So for every hour Bailey drives she travels 72.5 miles which is the same as saying that she drove at 72.5 miles per hour.
Hope this helps!
What values could be substituted for x to make a true number sentence in x + 4 = x + 8
2 + 2 divided by 2 is 3 why?
2×103 find the value
Answer:
206.
Step-by-step explanation:
100x2 = 200
3x2 = 6
200+6 = 206
Answer:
206
Step-by-step explanation:
multiplying anything by 2 is basically adding the exact same number to the original number. So basically: 103 +103
which equals 206
please help me
500+150+20+6=
Please help me it’s due in a hour! I’ll do brainiest to the first right person and please explain how to.
Answer:
you got to draw a line cutting the shapes in half, then add the permiters or area of both squares
Step-by-step explanation:
what is the value of x?
Answer: 36
Step-by-step explanation:
5x has to equal 180 and 180 divided by 5 equals 36. This means that x=36 and 4x=144
Answer: B. 36
Step-by-step explanation:
Look at the answer choices. The one that is an obtuse angle, 144, is going to be divided by 4. Your answer is B. 36
Write and simplify an expression for 6 to the third power
Answer:
6 x 6 x 6
Step-by-step explanation:
Six to the third power means to multiply 6 by itself 3 times.
The standard exponential function is expressed as y = ab^x. The value for the simplified form of 6 to the third power is 216
Exponential functionsThe standard exponential function is expressed as y = ab^x
Given the following parameters
6 to the third power
This can be expressed as 6^3
6^3 = 6 * 6 * 6
6^3 =36 *6
6^3 = 216
Hence the value for the simplified form of 6 to the third power is 216
Learn more on exponent here: https://brainly.com/question/4835769
#SPJ2
The sum of two consecutive numbers is 535
Answer:
267 and 268Step-by-step explanation:
[tex]n,\ n+1-\text{two consecutive numbers}\\\\535-\text{the sum}\\\\\bold{EQUATION:}\\\\n+(n+1)=535\\\\n+n+1=535\\\\2n+1=535\qquad\text{subtract 1 from both sides}\\\\2n+1-1=535-1\\\\2n=534\qquad\text{divide both sides by 2}\\\\\dfrac{2n}{2}=\dfrac{534}{2}\\\\n=267[/tex]
I need help please?!!!
(A) Write an expression for a number that is five
times greater than two
-2(2x+1)=1 define x and explain why
Answer:
x=-3/4
Step-by-step explanation:
Use the distributive property a(a+b)= ab+bc:
-4x-2=1
Add a 2 to both sides:
-4x=3
Divide both sides by -4:
x=3/-4
This can be rewritten as -3/4
he equation sin (40 degree) equals StartFraction b Over 20 EndFraction can be used to determine the length of line segment AC.
Triangle A B C is shown. Angle A C B is a right angle. The length of side A C is b and the length of hypotenuse A B is 20 centimeters.
What is the length of ? Round to the nearest tenth.
Answer:
The value of b is 12.9 cm
The value of a is 15.3 cm
Step-by-step explanation:
see the attached figure to better understand the problem
Find the value of b
we know that
in the right triangle ABC
The function sine of angle of 40 degrees is equal to divide the opposite side to the angle of 40 degrees (AC) by the hypotenuse (AB)
so
[tex]sin(40\°)=AC/AB[/tex]
Solve for AC
[tex]AC=(AB)sin(40\°)[/tex]
substitute the given value
[tex]AC=(20)sin(40\°)[/tex]
[tex]AC=12.9\ cm[/tex]
therefore
The value of b is 12.9 cm
Find the value of a
we know that
in the right triangle ABC
The function cosine of angle of 40 degrees is equal to divide the adjacent side to the angle of 40 degrees (BC) by the hypotenuse (AB)
so
[tex]cos(40\°)=BC/AB[/tex]
Solve for BC
[tex]BC=(AB)cos(40\°)[/tex]
substitute the given value
[tex]BC=(20)cos(40\°)[/tex]
[tex]BC=15.3\ cm[/tex]
therefore
The value of a is 15.3 cm
3 y - 14 equals 13what is the answer to 3y - 14 equals 13
3y-14=13
move -14 to the other side
sign changes from -14 to +14
3y-14+14=13+14
3y=13+14
3y=27
divide both sides by 3 to get y by itself
3y/3=27/3
Answer: y=9
Raj is mixing different colors of paint. The table shows the amount of each color paint Raj uses for each mixture. Select the two mixtures that will create the same color.
Answer:
Mixture 1 and Mixture 2 will create the same color
Step-by-step explanation:
we know that
If two mixtures create the same color, then the proportion of the painting in the mixtures must be the same
Let
x ----> the ounces of a red paint in the mixture
y ----> the ounces of a blue paint in the mixture
Verify the proportion of the paints in each mixture
Mixture 1) x=2, y=1
[tex]\frac{2}{1}=2[/tex]
Mixture 2) x=7, y=3.5
[tex]\frac{7}{3.5}=2[/tex]
Mixture 3) x=4.5, y=2
[tex]\frac{4.5}{2}=2.25[/tex]
Mixture 4) x=5.5, y=2.5
[tex]\frac{5.5}{2.5}=2.2[/tex]
therefore
Mixture 1 and Mixture 2 will create the same color, because have the same ratio
Answer:
Mixture 1 and Mixture 2
Step-by-step explanation:
It is given that Raj is mixing different colors (blue and red) of paint to make a new color.
If two mixtures have same ratio of red and blue color, then that will create the same color.
The ratio of red and blue color in each mixture is shown below:
Mixture 1: [tex]\frac{Red}{Blue}=\frac{2}{1}=2:1[/tex]
Mixture 2: [tex]\frac{Red}{Blue}=\frac{7}{3.5}=\frac{2}{1}=2:1[/tex]
Mixture 3: [tex]\frac{Red}{Blue}=\frac{4.5}{2}=\frac{9}{4}=9:4[/tex]
Mixture 4: [tex]\frac{Red}{Blue}=\frac{5.5}{2.5}=\frac{11}{5}=11:5[/tex]
From the above calculation it is clear that the ratio of red and blue color in mixture 1 and mixture 2 is same.
Therefore, Mixture 1 and Mixture 2 will create the same color.
what are the first four terms of the geometric sequence an=2 an-1 and a1=3
Answer:
3, 6, 12, 24
Step-by-step explanation:
This is a recursive formula which allows the next term in a sequence to be found from the previous term in the sequence
Given
[tex]a_{n}[/tex] = 2[tex]a_{n-1}[/tex] with a₁ = 3, then
a₂ = 2 × a₁ = 2 × 3 = 6
a₃ = 2 × a₂ = 2 × 6 = 12
a₄ = 2 × a₃ = 2 × 12 = 24
Thus the first 4 terms are 3, 6, 12, 24
Answer:
B.[tex]3,6,12,24[/tex]
Step-by-step explanation:
We are given that
[tex]a_n=2a_{n-1}[/tex]
[tex]a_1=3[/tex]
We have to find the first four terms of G.P
Substitute n=2
[tex]a_2=2a_1=2(3)=6[/tex]
Substitute n=3
[tex]a_3=2a_2=2(6)=12[/tex]
Substitute n=4
[tex]a_4=2a_3=2(12)=24[/tex]
Hence, the first four terms of G.P are given by
[tex]3,6,12,24[/tex]
Option B is true.
what is 3 divde by 3/4
[tex]\bf 3\div \cfrac{3}{4}\implies \cfrac{3}{1}\div\cfrac{3}{4}\implies \cfrac{~~\begin{matrix} 3 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{1}\cdot \cfrac{4}{~~\begin{matrix} 3 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies 4[/tex]
Someone plzzz help I’m lost :(
Answer:
j = (h-4) / k
Step-by-step explanation:
Unless there is more information given about this question somewhere else in the assignment, I'm assuming you are being asked to solve this equation for j.
If so, then its just a matter of rearranging the equation so that it is in the form
j = (expression containing other variables)
(h-4) / j = k (multiply both sides by j)
(h-4) = jk (divide both sides by k)
j = (h-4) / k
In the figure below, the arc x is formed on the unit circle by angle θ . What is the measure of angle θ in radians? A x B π−x C π/2 D π
Answer:
A. x radians
Step-by-step explanation:
The circumference of the unit circle is
[tex]2\pi r=2\pi \cdot 1=2\pi[/tex]
The full rotation angle has the measure [tex]2\pi[/tex] radians.
So,
[tex]\begin{array}{cc}\text{Angle}&\text{Arc length}\\ \\2\pi &2\pi \\\theta &x\end{array}[/tex]
Write a proportion:
[tex]\dfrac{2\pi }{\theta}=\dfrac{2\pi }{x}[/tex]
Cross multiply:
[tex]2\pi x=2\pi \theta\\ \\\theta=x[/tex]
help me with this question pls
Answer:1-1/3
Step-by-step explanation:
2/3x2=1-1/3
Answer:
3 loaves of banana bread
Step-by-step explanation:
2/3 x 3= 6/3. 6/3 simplified is 2 cups. I hope this helps!
Is the graph a funtion
Answer:
Yes
Step-by-step explanation:
A function correlates elements from a set one and only one element from a different set. Think of a train timetable: you can't have the same train in two points at a given time.
An easy way to solve the problem is to take a ruler (or the edge of a sheet of paper, as long as it's straight) and scan the graph parallel to the Y axis. As long as you don't touch the graph more than once, it's a function (zero points is ok!)
Answer:
yes
Step-by-step explanation:
how much does 4 5/7 kg of candy cost if 5/6 kg costs $7.50
Answer:
42.4285714286
Step-by-step explanation:
If you divide 7.5 by 5/6, the answer comes out to 9. If you multiply 4 5/7 by 9, the answer is 42.4285714286.
What is the inverse of the function f(x) = x +3?
h(x) = one-thirdx + 3
h(x) = one-thirdx – 3
h(x) = x – 3
h(x) = x + 3
Answer:
C. [tex]h(x)=x-3[/tex]
Step-by-step explanation:
We have been given a function [tex]f(x)=x+3[/tex]. We are asked to find the inverse of the given function.
First of all, we will replace [tex]f(x)[/tex] by y as:
[tex]y=x+3[/tex]
Now, we will interchange x and y variables as:
[tex]x=y+3[/tex]
Solve for y:
[tex]x-3=y+3-3[/tex]
[tex]x-3=y[/tex]
Switch sides:
[tex]y=x-3[/tex]
Therefore, the inverse function for the given function would be [tex]h(x)=x-3[/tex].
Answer:
C
Step-by-step explanation: