Answer:
x4-3b
Step-by-step explanation:
is this correct please help me.
Answer:
4:15:44Step-by-step explanation:
A ratio can be expressed three (3) ways. The ratio of A to B can be expressed as any of ...
A to B
A : B
A/B
It will be in reduced form when the numbers are mutually prime (have no common factors).
__
1.The ratio of burgers without onions to burgers with onions is ...
without : with = 8 : 2 = 4 : 1
__
2.The ratio of history visitors (5) to science visitors (44) is ...
history : science = 5 : 44
_____
Additional comment
Some problems can be fairly easily worked by considering the difference between A and B in the ratio A/B. However, those differences are irrelevant to this problem. Here, you're simply asked to write the ratios.
We note that the ratios asked for reverse the appearance of the numbers given in the problem. That is, the second number in the ratio requested is the number described first. This requires you pay attention to what you are given and what is requested. (That's always a good idea.)
Prove that the natural number x is prime if and only if x>1 and there is no positive integer greater than 1 and less than or equal to [tex]\sqrt{x}[/tex] that divides x.
There are several ways to prove a mathematical statement. These ways include: by contradiction, by induction, contraposition, etc
How to prove the statement by contradictionTo prove the statement, we make use of proof by contradiction
From the question:
x is a composite number such that: x > 1
This means that 1 < a < x is a factor of x
This can be represented as:
[tex]x = a * b[/tex]
Where:
a and b are positive integers1 < a, b < xAssume that b is less than or equal to a.
Also, let
[tex]b > \sqrt x[/tex]
This means that:
[tex]\sqrt x < b \ge a[/tex]
The above becomes
[tex]\sqrt x < a[/tex]
Rewrite as:
[tex]a > \sqrt x[/tex]
So, we have:
[tex]x = a * b > \sqrt x * \sqrt x = x[/tex]
The above means that:
[tex]x > x[/tex]
The above inequality is a contradiction because, a number x cannot be greater than itself
This means that, the supposition is wrong.
Hence, the given statement has been proved by contradiction
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16 teams, each with the same number of people, enter a quiz. At the
semifinal stage there are 12 people left in the competition
How many people entered the quiz?
Answer
48
Step-by-step explanation:
Semi-finals implies there are FOUR teams left...12 people implies THREE people per team
Which of the following indicates that AQRS and ATUV are similar?
U
R
Q
S
т
O A. AQRS ~ ATUV
B. AQRS = ATUV
C. AQRS= ATUV
O D. AQRS ATUV
The indication of QRS and TUV are similar is QRS ~ TUV.
What is Similarity?Similar triangles are triangles that have the same shape but differ in size. Similar items include all equilateral triangles and squares with any side length. In other words, if two triangles are identical, their corresponding angles and sides are congruent and in equal proportion. The " ~ " sign here denotes the resemblance of triangles.
The three-sided polygon is the triangle. The following is the criteria for triangle similarity:
Corresponding angles of both triangles are equal, and corresponding sides of both triangles are proportional to each other.
In Triangle QRS and TUV the similarity sign is used.
We know the ≅ is the sign of Congruence.
and, ~ is the sign of Similarity.
So, the sign of Similarity is QRS and TUV.
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When twice a number is decreased by three, the result is 25. What is the number?
Answer:
So you can make an equation.
So lets make the unknown number “x”
So it’s twice a number and it’s decreased by 3.
So 2x-3
The result is 25
2x-3=25
Now just solve for the number or “x”
X= 14
Which expression is equivalent to 12^7 times 12^4?
a. 3^11 times 4^11
b. 12^28
c. 1/12^11
d. (12^5)^6
Answer:
a.12^7 times 12^4=3^11 times 4^11
If correct I will give you brainliest
Answer:
x=2×-1÷4
NOW
or,2x-1÷4
or,3÷4
or,0.75 answer
Answer:
2x+3y-3x-5y
2x-3x+3y-5y
-1x-2y
When a banks customer makes an ATM withdrawal from the customers account which
Classes of the banks chart of accounts will be affected
Answer:
Classes representing assets.
Step-by-step explanation:
what is the areas of 12cm and10cm
Answer to letter B , C, D
Answer:
See below.Step-by-step explanation:
Our expression given: 3(x-6) + 2y
A. Substitute x = -7 and y = 10 into the equation.
[tex]3( - 7 - 6) + 2(10)[/tex]
Use the Distributive Property:
[tex] - 21 - 18 + 20[/tex]
Solve:
[tex] - 19[/tex]
B. Substitute x = 5 and y = -2 into the equation.
[tex]3(5 - 6) + 2( - 2)[/tex]
Use the Distributive Property:
[tex]15 - 18 + -4[/tex]
Solve:
[tex]-7[/tex]
C. Substitute x = 0 and y = 6 into the equation.
[tex]3(0 - 6) + 2(6)[/tex]
Use the Distributive Property:
[tex] - 18 + 12[/tex]
Solve:
[tex]-6[/tex]
D. Substitute x = 3 and y = 3 into the equation.
[tex]3(3 - 6) + 2(3)[/tex]
Use the Distributive Property:
[tex]9 - 18 + 6[/tex]
Solve:
[tex]-3[/tex]
What is the slope of the line that passes through the points (-7, -2) and (-15, -14)
The slope of the line that passes through the points (-7, -2) and (-15, -14) is 3/2.
The given coordinate points are (-7, -2) and (-15, -14).
What is slope of a line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The formula to find the slope of a line is slope = (y2-y1)/(x2-x1)
The slope of the line is
Put (x1, y1) =(-7, -2) and (x2, y2)=(-15, -14)
Slope = m= (-14-(-2))/(-15-(-7))
= -12/(-8)
= 3/2
Therefore, the slope of the line that passes through the points (-7, -2) and (-15, -14) is 3/2.
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Please help. 435 × 3
Enter your answers in the boxes to correctly complete the equations.
435 × 3 = (400 + 30 + 5)×
= 400 × 3 +
× 3 + 5 ×
=
+ 90 +
=
Answer:
1st box= 3
2nd box = 30
3rd box=3
4th=1200
5th= 15
Sixth =1305
Answer:
Attached
Step-by-step explanation:
Hope it helps :)
Add parentheses to make true.
2(with exponent of 3) +7.8 + 4 = 30.
Answer:
8 (hopefully)
Step-by-step explanation:
Exponents and Fractions always get dealt with before Math Symbols and Parentheses.
But other than that, you ALWAYS do times or divide from left to right, than plus or minus left to right (unless there's a parentheses, go for the number in the parentheses).
2 by the power of 3 (or 2^3) splits into three twos.
2 * 2 = 4 * 2 = 8 (2^3 = 8)
7 * 8 = 56
56 divided by 4 = 14
8 + 14 = 22
Long story sort
2^3 + 7 * 8 */. 4
8 + 7 * 8 */. 4
8 + 56 */. 4
8 + 14
22
Now than I do not remember what you're supposed to with the "= [Number]" but I do believe you're supposed to sum the left and the right. So I do believe it's 8, now than remember this is not an exact answer, due to not knowing what it's properly to be.
Answer:
(2³ +7)·8÷4 = 30
Step-by-step explanation:
You want to add parentheses to make a true statement from ...
2³ +7·8÷4 = 30
Order of operationsWe recognize that 2³ +7 = 15 and 8÷4 = 2, and the product of these is 30. So, we need to insert parentheses to make (2³ +7) be evaluated before multiplying by 8 and dividing by 4:
(2³ +7) · 8 ÷ 4 = 30
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Krisi took out a $500 discounted loan calculated using a simple interest rate of 5% for a period of 2 years. What is the effective interest rate? Give your answer as a percentage to the nearest tenth of a percent.
Answer:
Step-by-step explanation:
$50050050re=$450(1+2re)=450+900re=900re=50900=0.05555¯=5.555¯%
The amount of interest will be $50 for the investment.
What is simple interest?Simple interest is a way to figure out how much interest will be charged on a sum of money at a specific rate and for a specific amount of time.
Contrary to compound interest, where we add the interest of one year's principal to the next year's principal to calculate interest, the principal amount in simple interest remains constant.
Given that Krisi took out a $500 discounted loan calculated using a simple interest rate of 5% for a period of 2 years.
The interest will be calculated as:-
SI = ( 500 x 5 x 2 ) / 100
SI = $50
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1/7x7=1 what property is that
Identity property of multiplication
Identity property of multiplication: The product of 1 and any number is that number. For example, 7 × 1 = 7 7 \times 1 = 7 7×1=77, times, 1, equals, 7.
inverse matrices
how can i solve for x?
Answer
You can solve for x
Step-by-step explanation:
HELP ME OUT PLEASE!!!!!!
Step-by-step explanation:
when it is phrased like that it should mean that we apply the scale factor to the original images to create the new ones.
and that means the new images will in our case be bigger by the factor of 2.
therefore, the 4th answer option is correct.
2 cm turn into 2×2 = 4 cm
1.5 cm turn into 2×1.5 = 3 cm
3 cm turn into 2×3 = 6 cm
3x 3/5 help me please
Answer:
9/5
Step-by-step explanation:
it is because 3/1 × 3×5
so which means 9/5
Answer:
1.8
Step-by-step explanation:
first you make the 3 3/1 then multiply 3/3 which are the numerators so that is 9 then you multiply the imaginary 1 that is under the 3 to the 5 so you get 9/5 and that simplified is 1 4/5 and then put that into a decimal is 1.8
Question 1 Multiple Choice Worth 2 points)
(06.04 MC)
The speed of a passenger train that is traveling at an initial speed of 14 feet per second and continues to accelerate can be modeled by the function: y = 142. A
second train that is 1,200 feet ahead of the first train is traveling at a constant speed of 149 feet per second and can be modeled by the function: y = 149t + 1200
Solve the system of equations. Which solution represents a viable time that the trains are side by side?
O 14 seconds
O 15 seconds
O 16 seconds
O 17 seconds
Using a system of equations, it is found that the trains will be side by side in 15 seconds.
What is a system of equations?A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the equations are:
[tex]y_1 = 229t[/tex]
[tex]y_2 = 149t + 1200[/tex]
They will be side-by-side when:
[tex]y_1 = y_2[/tex]
Hence:
[tex]229t = 149t + 1200[/tex]
[tex]80t = 1200[/tex]
[tex]t = \frac{1200}{80}[/tex]
[tex]t = 15[/tex]
The trains will be side by side in 15 seconds.
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A community theater sells about 150 tickets to a play each week when it charges $20 per ticket. For each $2 decrease on price about 25 more tickets per week are sold. Write a quadratic function to find how the theater can maximize weekly revenue. What should the theater charge to maximize revenue? What is the maximum weekly revenue? (6 pts) (Show all work.)
What is the equation:
What should the theater charge?
What is the maximum revenue?
Answer:
Given two items with a price and quantity, this determines which is the better buy by comparing unit prices. Finds the better deal.
Binomial Distribution
Calculates the probability of 3 separate events that follow a binomial distribution. It calculates the probability of exactly k successes, no more than k successes, and greater than k successes as well as the mean, variance, standard deviation, skewness and kurtosis.
Also calculates the normal approximation to the binomial distribution with and without the continuity correction factor
Calculates moment number t using the moment generating function
Binomial Option Pricing Model
This shows all 2t scenarios for a stock option price on a binomial tree using (u) as an uptick percentage and (d) as a downtick percentage
Bond Flat Price-Accrued Coupon-Market Price
Calculates the flat price, accrued coupon, and market price for a bond between valuation dates using the following methods:
1) Theoretical Method
2) Practical Method
3) Semi-Theoretical Method
Step-by-step explanation:
A machine cuts a strip of carpet into two pieces. The length of the smaller piece is 5 meters greater than 4 the length of the larger piece. If
the length of the smaller piece is 12 meters, the length of the bigger piece is meters and the total length of the carpet is
meters. And it's not 7 14 19 or 29
Answer:
Great job!
You earned
+5 pts
for helping
Step-by-step explanation:
Ms. reed makes salad dressing by combining oil and vinegar. she combines 8 fluid ounces of oil and 3 fluid ounces of vinegar to make one batch. Ms. Reed makes 3 batch of salad dressing. How many total cups of salad dressing does she makes ?
By performing a change of units, we will see that she did make 1.375 cups of salad dressing.
How many total cups does she make?First, we know that she combines 8 oz of oil and 3 oz of vinegar, then the total volume in ounces is:
V = 8oz + 3 oz = 11 oz
Now we want to know how many cups there are in 11 ounces, so we need to perform a change of units.
We know that:
1 oz = 0.125 cups
Then we can write:
11 oz = 11*(1 oz) = 11*(0.125 cups) = 1.375 cups
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4.) Emma wants to know the volume of a box of chocolates
she received. The box is 13 centimeters long, 5
centimeters high and 6 centimeters wide. How big is
the box?
Answer:
390 cubic centimeters
Step-by-step explanation:
the volume of a box is the length width and height all multiplied together
so this is what the equation would look like
5(6)(13)
you can split this up into
5(6) * 13
so 5(6) is 30
30(13)
this is 390
so the box is 390 cubic centimeters
answer for 50 points
Answer:
C
Step-by-step explanation:
Answer:
Blah
Step-by-step explanation:
Please help me with this.
Image attached below! Thank you.
Answer:
C
because:
[tex]y = 0.074x + 50.48 \: \: \\ \: when \: x = 2158 \\ y = 0.074(2158) + 50.48 \\ y = 210 \\ when \: x = 2040 \\ y = 0.074(2040) + 50.48 \\ y = 200 \\ [/tex]
So the equation can be used to calculate fair housing prices is:
[tex]y = 0.074x + 50.48[/tex]
2.Each purse contains 8 coins. Find a rule to give the total number of coins.
If we have to find the total number of coins then we can use the following rule:
If Each Purse Contains 8coins ,then we can find total number of coins by multiplying 8 to the number of total purseThus,
Rule is :︎⠀⠀ ⠀⠀ ⠀⠀ ⠀︎⠀⠀ ⠀⠀ ⠀8×Total Number of Purse.
─━─━─━─━─━─━─━─━─━─━─━─━─Caroline painted 12 pictures in 6 days. At what rate did she paint the pictures? A.
6 pictures per day
B.
18 pictures per day
C.
72 pictures per day
D.
2 pictures per day
Answer:
D
Step-by-step explanation:
Maurice has completed 72 pages of the research paper he is writing. That is 90% of the required length of the paper. What is the required length of the paper?
Answer:
its 100 pages ................
Answer:
80
Step-by-step explanation:
When we first look at this, it generally says "90% of what number is 72?" so that's what we can do.
We can change 90% into a decimal, and put in x, which is what our answer will be!
[tex]0.9*x=72[/tex]
We can multiply both sides of this equation by 100, and then divide by 90. After all of this, we have
[tex]x=72*10/9[/tex], which is 80.
Find the probability P(not E) if P(E)=0.26.
Answer:
0.74
Step-by-step explanation:
P(not E) = 1 - P(E) = 1 - 0.26 = 0.74
Which values from the set {-6, -4, -3, -1, 0, 2} satisfy this inequality? 1/2x+3>5
Answer:
-12x+3 greater than or equal to 5
-12x greater than or equal to to 2
To turn the negative sign of -12x into positive, we multiply both sides by minus, which shifts the inequality sign.
So, 12x less than or equal to 2
x is less than or equal to 1/6
Therefore, 0, -1, -3, -4 and -6 satisfy this inequality