Answer:
Alejandro bought a television set for $900 and paid a sales tax of 8%. How much did he pay for the television set
Step-by-step explanation:
a shirt is marked down 20% off the original price if they're priced it was $24 what is the sale price of the shirt before sales tax
Answer: $4.80
Step-by-step explanation: 24 * 0.20 = 4.80
Help!! ASAP!! Which ordered pair(s) are solutions to 3x − y = 1? Select all that apply.
A. (−2, −7)
B. (−1, −4)
C. (0, 1)
D. (3, 8)
Answer:
A, B, and D
Step-by-step explanation:
Substitute all the coordinates into the equation. (x, y)
3(-2) - (-7) = 1
-6 - (-7) = 1
1 = 1
3(-1) - (-4) =1
-3 - (-4) = 1
1 = 1
3(0) - (1) = 1
0 - (1) = 1
-1 does not equal 1
3(3) - (8) = 1
9 - (8) = 1
1 = 1
The ordered pairs which are solutions to the equation 3x − y = 1 are:
Choice A. (−2, −7)Choice B. (−1, −4)Choice D. (3, 8)By testing;
For A. (−2, −7); we have;
3(-2) − (-7) = 1-6 + 7 = 11 = 1 ..... SolutionFor B. (−1, -4); we have;
3(-1) − (-4) = 1-3 + 4 = 11 = 1 ..... SolutionFor C. (0, 1); we have;
3(0) − (1) = 10 - 1 = 1-1 = 1 ..... No SolutionFor D. (3, 8)
3(3) - (8) = 19 - 8 = 11 = 1..... SolutionRead more on equation solutions:
https://brainly.com/question/2284807
I will mark brainly if first responder in 1 minute.
Answer:
the third one
Step-by-step explanation:
all you have to do is multiply the exponents
Becky has 785 tickets to trade for prizes. She picks a book that cost 27 tickets and a toy that cost 3 times as many tickets as the book. How many tickets does she have left?
Answer:
677
Step-by-step explanation:
785-27= 758
27*3= 81
758- 81= 677
I hope this helps!!!!
Find the measure of the acute angle that line y=1/3x+4 makes with a horizontal line. Round your answer to the nearest tenth.
Also, I hope you are having a good day.
Answer:
The measure of the acute angle is 18.4°
Step-by-step explanation:
The angle between a line of equation y = m x + b and the positive part of the x-axis is Ф = [tex]tan^{-1}[/tex](m), which means tan Ф = m, where m is the slope of the line
Let us use this rule to solve the question
∵ A line of equation y = [tex]\frac{1}{3}[/tex] x + 4 makes with a horizontal line an acute ∠
→ Compare the equation of the line by the form of the equation above
∴ m = [tex]\frac{1}{3}[/tex]
→ Assume that the acute angle is Ф
∴ The acute angle between the line and the horizontal line is Ф
→ By using the rule above
∵ tan Ф = m
∴ tan Ф = [tex]\frac{1}{3}[/tex]
→ Use [tex]tan^{-1}[/tex] to find Ф
∵ Ф = [tex]tan^{-1}[/tex] ( [tex]\frac{1}{3}[/tex] )
∴ Ф = 18.43494882
→ Round it to the nearest tenth
∴ Ф = 18.4°
∴ The measure of the acute angle is 18.4°
which value for the constant c makes z =-5/4 an extraneous solution in the following equation?
[tex] \sqrt{4z + 9} = cz + 8[/tex]
Answer:
c=8
Step-by-step explanation:
The value of c that makes z = -5/4 an extraneous solution is c = 24/5.
What is the Linear equation?A linear equation is defined as an equation in which the highest power of the variable is always one.
The equation is given as:
√{4z + 9} = cz + 8
An extraneous solution is a solution that is not a valid solution to the original equation, but it is obtained during the process of solving the equation. In this case, the extraneous solution is z = -5/4.
To determine the value of c that makes z = -5/4 an extraneous solution, we can substitute -5/4 for z in the original equation. This gives us the following:
√{4 × -5/4 + 9} = -5/4 × c + 8
√{-5 + 9} = -5/4 × c + 8
√4 = -5/4 × c + 8
2 = -5/4 × c + 8
5/4 × c = 8 - 2
5/4 × c = 6
c = 6 × 4/5
c = 24/5
Therefore, the value of c that makes z = -5/4 an extraneous solution is c = 24/5.
Learn more about the equations here:
brainly.com/question/13738061
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I need help whoever answers this question will be the brainliest!!!
A fuel injection system is designed to last 18 years, with a standard deviation of 1.4 years. What is the probability that a fuel injection system will last less than 15 years? 25% 33% 2% 20%
Answer:
2%
Step-by-step explanation:
We are given;
Standard Design mean; μ = 18
Sample design mean; x¯ = 15
Standard Standaed deviation; σ = 1.4
Let's find the test statistic from the formula;
z = (x¯ - μ)/σ
Thus;
z = (15 - 18)/1.4
z = -2.14
From the z-table attached, the p-value at z = -2.14 is 0.01618
Thus,
P(X < 15) = 0.01618
Converting to percentage, we have
P(X < 15) = 1.618%
This is approximately 2%
Using the normal distribution, it is found that there is a 2% probability that a fuel injection system will last less than 15 years.
Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.In this problem:
The mean is of 18 years, hence [tex]\mu = 18[/tex].The standard deviation is of 1.4 years, hence [tex]\sigma = 1.4[/tex].The probability that a fuel injection system will last less than 15 years is 1 subtracted by the p-value of Z when X = 15, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{15 - 18}{1.4}[/tex]
[tex]Z = -2.14[/tex]
[tex]Z = -2.14[/tex] has a p-value of 0.02.
0.02 = 2% probability that a fuel injection system will last less than 15 years.
To learn more about the normal distribution, you can take a look at https://brainly.com/question/24663213
Add this is the ratio of monkey to Zeabra's is 15 to 3 if there are 45 monkeys at the zoo how many Zeabra‘s are there
Answer:
monkeys 15:3 zebras
45/15 = 3
3 X 3 = 9
there are 9 zebras
What is (x − 3)(x + 3) expressed as a binomial????????????????
A.2x − 9
B.x2 − 9
C.x2 + 9
D.2x − 6
Step-by-step explanation:
B.x2-8 it this because u work brakets first
Plz help not much!!!!! Plz be correct I don’t wanna fail
Answer:
yes it is a right triangle
Step-by-step explanation:
Answer:
of course not
Step-by-step explanation:
use Pythagoream thereom
12^2 + 14^2 does not equal 25^2
An office printer prints 25 photos in 12.5 minutes. A home printer prints 15 photos in 6 minutes. Which printer is faster?
The office printer is faster.
The home printer is faster.
Question 2
How many more photos can you print in 12 minutes using the faster printer?
You can print
photos in 12 minutes using the faster printer.
PLZZZ HELP
Please help me asap! Will give brainliest + points!
Answer:
Its the 2nd one
Step-by-step explanation: Hope this helps!
Answer:
C. I and II onlyStep-by-step explanation:
The first and second statements are correct but the third statement incorrect.
The same side interior angles are supplementary (sum to 180°) but not complementary (sum to 90°)Therefore the correct choice is C. I and II only
4,237 white game consoles and 952
Answer:
what
Step-by-step explanation:
Answer: funny question
Step-by-step explanation:
4,237 white game consoles and 952
Em de terminado dia, sofia voltava de sua casa 2h30min acima do horario que sua mãe determinou para sua própria segurança . Sabendo que o horário que sua mãe determinou foi as 20h, qual horário que ela estava voltando?
Responda:
22:30
Explicação passo a passo:
Dado que :
Hora definida pela mãe = 20h00
Número de horas além do tempo definido = 2 horas e 30 minutos
Hora em que ela voltou para casa:
(tempo definido pela mãe + número de horas além do tempo definido)
(20h + 2 horas e 30 minutos) = 22h30
which of the following systems of equations has a solution of (1, 3) Circle all that apply.
A. 3x+5y=18. B. x=4y-11. C. x-y=2
y=2x+1. y=5x-14. 2x+3y=11
14 + 18 ÷ (2 x 18) - 7 using order of operations
Answer:
1/2x+7
Step-by-step explanation:
Answer: 11
Step-by-step explanation:
First use a step by step process called BODMAS which stands for brackets of(x) division multiplication additon and subtraction
How many solutions does this system of equations have?
y = –2x + 2
2y + 4x = 4
Step-by-step explanation:
First we solve it.
I'll use substitution.
In the first equation y equals -2x+2 so we can apply that to the second equation
2y + 4x = 4
2(-2x+2) + 4x = 4
distribute
-4x+4+4x=4
simplify
4=4
To figure out how many solutions it has:
•If both side of the equal sign are exactly the same: Infinitely many
ex: 6x=6x
•If both sides of the equal sign do not match when completely simplified: No solutions
ex: 3x=-5x
•If it creates an equation: 1 solution
ex: x=3+2y
Since both sides of the equal sign are 4, we have infinitely many solutions.
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
A square tabletop has side lengths of (2x − 7) units. Enter a polynomial that represents the area of the tabletop.
Answer:
53x-28x
Step-by-step explanation:
Area equals length tomes width, so multiply them. You would multiply them by using the distributive property, lastly add like terms.
Answer:
Step-by-step explanation:
Some pls help my mom thinks I'm wrong with my answer -_-
A number was multiplied by 12.
The result was doubled and the final answer was 144.
What is the number?
6
6 multiplied by 12 =72
72 multiplied by 2 =144
Can someone help me with these I don’t understand at all
Answer:
#1: ????
#2: [tex]\frac{3}{4}[/tex] x [tex]15[/tex]
#3: [tex]\frac{7}{8}[/tex] ÷ [tex]\frac{3}{4}[/tex]
Step-by-step explanation:
For #2:
[tex]\frac{3}{4}[/tex] x [tex]15[/tex].
It's that because there are 3/4 cups of honey for one cake. To use for 15 cakes, you would have to multiply it by 15.
For #3:
[tex]\frac{7}{8}[/tex] ÷ [tex]\frac{3}{4}[/tex].
It's that because the baker has 7/8 cups of honey. It takes 3/4 cups of honey for one cake. So you have to divide it by 3/4 cups in order to find out how many cakes.
Hope this helped! <3
Solve the equation for m:
m/5 = 60
Answer:
m = 300
Step-by-step explanation:
[tex]m/5 = 60[/tex]
multiply both sides of the equation by 5
[tex]m = 60 * 5 = 300[/tex]
Answer:
n = 300
Step-by-step explanation:
60 * 5 = 300
m = 300
The Quick Ship company uses the function C(w) to calculate the cost in dollars, C, for shipping an item weighing w ounces. C(w) 0.45w 0.35w + 1.6 if 0 < W 16 Which statement about the shipping rate is true?
A.it is possible that an item weighing less then 16 ounces could cost the same as an item weighing more than 16 ounces
B. to find the charge for shipping a package weighing more than 16 ounces, multiply the weight by $.035.
C. Shipping at the second rate will always cost $1.60 more than shipping at the first rate
D. if the weight is greater than 16 ounces,the shipping rate is $.0.35 per ounce, plus $1.60
The ratio 1/1000 is equal to what percent
Answer:
0.1%
Step-by-step explanation:
Answer:
.1%
Step-by-step explanation:
1/100 is 1%, move the decimal to the left once and you get .1%
please help! no wrong answers or I will report :)
Answer:
a. (1, 1)
Step-by-step explanation:
plug into equation: 5(1)+ 4(1) less than or equal to 10
solve: 5+4=9 and 9 is less than 10
could someone help out maybe? help would be appreciated!
Answer:
i think b
Step-by-step explanation:
find the area of the pollelegram. bass 6 mm height 4 mm.
Answer:
6 x 4 =24
the answer is 24
Step-by-step explanation:
this is part 4 the last part
state the given statements is true or false. If areas of two rectangles are the same, then they are congruent
Hey there!
This answer to your question is it is false.
This is because you could have a rectangle with a length of 6 and a width of 4, and the area would be the same as a rectangle with a length of 8 and a width of 3. They would both be 24.
Hope it helps and have an amazing day! Stay safe!
Solve for p.
2 (p + 1) = 16
A. p = 7
B. p = 7.5
C. p = 8.5
D. p = 9
Answer:
p=7
Step-by-step explanation:
2(p + 1) = 16
2p + 2 = 16
-2 -2
2p = 14
/2 /2
p=7
Answer:
p = 7
Step-by-step explanation:
Took a test!
