Which equation, when solved, glves 8 for the value of x?
5
7
3
3
OA. 2x+ź= 4x+14
OB. 1-9=34-12
OC 41-2=15-4
OD. *-7= x+14
Reset
Ne
Answers
Answer:
C.
Step-by-step explanation:
5/4x-2=3/2x-4
5/4x-3/2x = -4+2
(multiply both sides by 4)
5x-6x=-16+8
-x=-8
(multiply by -1)
x=8
Answer:
C
Step-by-step explanation:
[tex]\frac{5x}{2} +\frac{7}{2} =\frac{3x}{4} +14\[/tex] isolate the terms with the variable x
[tex]\frac{5x}{2} -\frac{3x}{4} =14-\frac{7}{2}[/tex] get the same denominator and combine like terms
[tex]\frac{10x-3x}{4} = \frac{28-7}{2}[/tex] solve
[tex]\frac{7x}{4} =\frac{21}{2}[/tex] crossmultiply and solve for x
[tex]x=\frac{4*21}{7*2} =6[/tex] so is not the first option
try second
[tex]\frac{5x}{4} -9=\frac{3x}{2} -12[/tex] same steps as before
[tex]\frac{5x-6x}{4}=9-12\[/tex]
[tex]\frac{-x}{4} =\frac{-3}{1}[/tex] so x=12 not the second option
try third option
[tex]\frac{5x}{4} -2=\frac{3x}{2} -4[/tex]
[tex]\frac{5x-6x}{4} =2-4[/tex]
[tex]\frac{-x}{4} =\frac{-2}{1}[/tex] so x=8
Related Questions
Evaluate the function f(x) = 2x + 8, when x = 0
Answers
Answer:
8
Step-by-step explanation:
f(x) = 2x + 8
x=0
f(0) = 2(0) + 8
f(0)=0+8
f(x)=8
Answer:
8
Step-by-step explanation:
f(x)=2x+8
x=0
f(0)=2(0)+8
f(0)=0+8
F(0)=8
whayts the answer giving brainliest to first 1
Answers
Answer:
C
Step-by-step explanation:
HOPE THIS HELPS :)
For each statement, select the correct null hypothesis, H0, and alternative hypothesis, Ha, in symbolic form.1. A certain type of hummingbird is known to have an average weight of 4.55 g. A researcher wonders if hummingbirds (of this same type) living in the Grand Canyon differ in weight from the population as a whole. The researcher finds a sample of 30 such hummingbirds from the Grand Canyon and calculates their average weight to be 3.75 g.A. H0:x¯=4.55, Ha:x¯<4.55.B. H0:μ=3.75, Ha:μ≠3.75.C. H0:x¯=3.75, Ha:x¯>3.75.D. H0:μ<4.55, Ha:μ=4.55.E. H0:μ=4.55, Ha:μ<4.55.F. H0:μ=4.55, Ha:μ≠4.55.2. According to the Merck Veterinary Manual, the average resting heart rate for a certain type of sheep dog is 115 beats per minute (bpm). A Montana farmer notices his aging sheep dog has been acting more lethargic than usual and wonders if her heart rate is slowing. He measures her heart rate on 15 occasions and finds a sample mean heart rate of 118.2 bpm.A. H0:μ=115, Ha:μ<115.B. H0:μ=115, Ha:μ≠115.C. H0:x¯=118.2, Ha:x¯≠118.2.D. H0:μ=115, Ha:μ>115.E. H0:x¯=115, Ha:x¯>115.F. H0:μ=118.2, Ha:μ<118.2.3. The mean height of all adult American males is 69 inches (5 ft 9 in). A researcher wonders if young American males between the ages of 18 and 21 tend to be taller than 69 inches. A random sample of 100 young American males ages 18 to 21 yielded a sample mean of 71 inches.A. H0:x¯=69, Ha:x¯>69.B. H0:μ=71, Ha:μ<71.C. H0:μ=69, Ha:μ≠69.D. H0:μ>69, Ha:μ<69.E. H0:μ=69 , Ha:μ>69.F. H0:x¯=71, Ha:x¯<71.
Answers
Answer:
F.) H0:μ=4.55, Ha:μ≠4.55
A.) H0:μ=115, Ha:μ<115
H0:μ=69 , Ha:μ>69
Step-by-step explanation:
The null and alternative hypothesis are used in hypothesis testing.
Generally, both hypothesis negatives each other, with the alternative being the opposite of the null hypothesis.
1)the mean value of the population is 4.55 ; the researcher aims to test if the mean value differs from thus value, hence, Alternative ; μ ≠ 4.55
2.) The mean resting heart rate is said to be 115 ; this is the null claim. The reaesrch aims to test if heart rate slows down with age. Hence, the alternative will be to show that mean rate lesser Than 115 as claimed (μ < 115)
3.) Theean height of the population is claimed to be 69. Researcher aims to test if some people within the population have mean height abive this said height. (μ > 69)
What is the product (-2d2+s)(5d2-6s)
Answers
Answer:
its A
Step-by-step explanation:
correct on edge
The sum of all the whole numbers from 1 to 45 is subtracted from the sum of all the whole numbers from 1 to 50 as shown: (1 + 2 +....+ 50) - (1 + 2 +.....+ 45) What will be the result?
Answers
Answer:
(1+2+...+50) includes all of the numbers added until 45, meaning that our result is 46+47+48+49+50 = 240
pls mark as brainliest
Solve the system of equations below by graphing them with a pencil and
paper. Enter your answer as an ordered pair.
y=-x+ 2
y=-2x+6
Answers
Answer:
x=2 y=0
Step-by-step explanation:
Explanation:
just put y= -x in second equation x comes out to be 2. Then put x=2 y comes out to be 0
What is the value of n in the equation ?
n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2
Answers
Answer:n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2
Step-by-step explanation:n = 6
n, = 6
n = 0
n, = 0
n = 4
n, = 4
n = 2
n, = 2 equal to yz7 (*970
Answer:
D.) n=6
Step-by-step explanation:
Suppose a company claims that its jars of pickles weigh 68 ounces on average. It took many large samples, and about half the time, the mean weight of the sample was outside the 95% confidence interval. Which of the following would be a reasonable conclusion? A. The company's jars of pickles weigh 68 ounces on average. B. The company's jars of pickles weigh fewer than 68 ounces on average. C. The company's jars of pickles weigh more than 68 ounces on average. D. The company's jars of pickles do not weigh 68 ounces on average.
Answers
Step-by-step explanation:
The company's jars of pickles weigh fewer than 68 ounces on average. C. The company's jars of pickles weigh more than 68 ounces on average. D. The company's jars of pickles do not weigh 68 ounces on average.
This is the Answer
x + 3y = 5
-x + 6y = 4
Solve the system of equations.
A) x = 1, y = 2
B) x = 2, y = 1
C) x = 1, y = 1
D) x = 0, y = 2
Answers
Answer = B) x = 2, y = 1
As, x + 3y = 5 = 2 + 3(1) = 5, so 2 + 3 = 5
-x + 6y = 4
-2 + 6(1) = 4
-2 + 6 = 4
So, answer = (B)
Aman walks 10 miles In x hours. How far does he walk In one hour? Which expression represents this?
A). 10/× miles
B). 10x miles
C). 10 + x miles
Answers
Answer:
A
Step-by-step explanation:
Hope this helps and I don't really know how to explain.
Which relation is not a function?
Answers
Find m
8
B
47°
8
O
8
O
47
O
90
O
180
Answers
Brianna buys a $5400 refrigerator using an installment plan that requires 18% down and a 4.1%
interest rate. How much is her down payment?
LOL PLS HELP ME
Answers
Answer:
her down payment is her down payment.........
Step-by-step explanation:
B sus
If point S is located at (0, 0), point T is located at (0, 6), point U is located at (12, 0), and point V is located at (0, 10), what are the coordinates of point W that makes △STU ~ △SVW?
Answers
Answer:
(2,0)
Step-by-step explanation:
it is
Answer:
(2,0)
Step-by-step explanation:
Question 3
If the sales tax for the city of Los Angeles is 9,75%, how much tax would you pay for an item that costs $500.00?
Answers
Answer:
$48.75
Step-by-step explanation:
500.00 x 9.750=$48.75 sales tax
7th grade math help me pleaseee
Answers
Answer:
Number 3
Step-by-step explanation:
In communitive property you can flip the numbers and you will still get the same answer.
Answer:
Associative Property of Multiplication
Step-by-step explanation:
The expression -10 x 3 will equal -30 no matter the order the numbers come in. It can be either -10 x 3 or 3 x -10. This is an example of the associative property of multiplication.
DOOOOOOOOOOOOOOOOOOOOOGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGYYYYYYYYYYYYYYYYYYYYYYY
Answers
Answer:
woof
Step-by-step explanation:
Joe puts his trading card collection in a folder Each page of the folder holds 9 cards. He has 1,356 trading cards Complete the statement to tell the number of pages
Joe completely fills and the number of trading cards he has left over
Answers
If he has 1,356 cards and each page he has holds 9 cards, we don't know how many pages he has, so that will be x
1,356/9x -----1,356 (# of cards) divided by 9 (cards each page holds) times x (# of pages)
Divide 9x by 9 to get x by itself -----9x/9=x
Then, what you do to one side you must do to another so divide 1,356 by 9 -----1,356/9=150.667
He needs 150 pages and has .667 left over.
PLEASE HELLLP I DON"T UNDERSTAND IT!!
Answers
A 29 foot ladder leans against a building so that the angle between the ground and the ladder is 77º. How
high does the ladder reach up to the side of building? Round to one decimal place.
ft
Answers
Answer:
5 √ 10 + 2 √ 5 ft high
Step-by-step explanation:Explanation:
Let h be the height to which latter of length of 20 ft reach then using Sine formula in right triangle with hypotenuse 20 & vertical leg h & opposite acute angle 0 = 72∘ sin θ =h 20 sin 72∘= h 20
h
=
20
sin
(
90
∘
−
18
∘
)
=
20
cos
18
∘
=
20
(
√
10
+
2
√
5
4
)
=
5
√
10
+
2
√
5
GIVING 30 POINTS AND BRAINLIEST NEED HELP QUICK
which reason justifies step 5 a. das b.sss c.asa. d.aas
Answers
Answer:
D) aas
look i wanted to tell whoever is reporting peoples answers for no reason plz STOP. It's really annoying cause if you keep doing that people will get banned for no reason. So like i said plz stop reporting for no reason
The table shows the fraction of the votes that each candidate received. If 230 students voted, how many students voted for Nyemi?
Answers
Answer:
Nyemi got 138 votes.
Step-by-step explanation:
Answer:
138 students
Step-by-step explanation:
change nyemi to 6/10
1/10 of 230 is 23
23x6=138
Which situation is best described by this number line?
-8-7-6 -5 4 -3 -2 -1 0 1 2 3 4
5 6 7 8
Ryder owed his mom $2.50. He also owes his father $875.
Ryder owed his mom $2.50. He does some chores and makes $625
B. Ryder had $6.25. He needs to buy school supplies and ends up owing his
mother $2.50
Ryder owed his mom $2.50. He babysits his sister and makes $875
Helppp
Answers
Answer: B. Ryder had $6.25. He needs to buy school supplies and ends up owing his mother $2.50
Step-by-step explanation: The number line only has single digits and every other answers have extreme changes while B has the lowest change that fits in the number line.
(1) prove that: 1 + 4 + 7 +………+ (3n – 2) = (3n – 1). ( n ≥ 1 )
Answers
The statement as given is not true. For n = 1, the left side is just the first term, 1, while the right side would be 3(1) - 1 = 2, and 1 ≠ 2.
I think what you meant to write was the equation
1 + 4 + 7 + ... + (3n - 2) = 1/2 n (3n - 1)
which can be easily proved by induction.
For n = 1, we have
1 = 1/2 (1) (3(1) - 1) → 1 = 1
which is of course true.
Now for the inductive step. Assume the equation holds for n = k, so that
1 + 4 + 7 + ... + (3k - 2) = 1/2 k (3k - 1)
and use this to show it holds for n = k + 1.
We would have
1 + 4 + 7 + ... + (3k - 2) + (3(k + 1) - 2)
which reduces to
1/2 k (3k - 1) + (3k + 1)
3/2 k² + 5/2 k + 1
1/2 (3k² + 5k + 2)
1/2 (k + 1) (3k + 2)
which is precisely what the formula gives on the right side for n = k + 1. QED
How do you solve y=6x+8
Answers
Find three consecutive odd integers such that the sum of the smallest number and
twice the middle number is 10 more than the largest number.
Answers
Answer:
As the first number is 5, the second will be 7, and the third will be 9.
Step-by-step explanation:
First, let's break down what the information is telling us.
"three consecutive odd integers" means each number is 2 away from each other. So if we were to assign the variable x as the first number, the second would be x + 2 and the third would be x + 4
"sum of the smallest number and twice the middle number" refers to adding the first number and 2 times the second number. So we would write:
x + 2(x + 2)
"is 10 more than the largest number" connects the second part to an equation. This is saying the third number plus 10. So for this, we would write:
(x + 4) + 10
Now we join the information that we have written mathematically into an equation. Since we have an equation, we can solve for the first number, and hence the second and third numbers.
x + 2(x + 2) = (x + 4) + 10
x + 2x + 4 = x + 14
3x + 4 = x + 14
2x = 10
x = 5
As the first number is 5, the second will be 7, and the third will be 9.
The key idea for solving this question is to define a variable and connect it to an equation using the information provided. Try to think about how much information is needed and how many variables need to be defined.
A project has an initial cost of $55,000, expected net cash inflows of $10,000 per year for 12 years, and a cost of capital of 11%. What is the project's NPV? (Hint: Begin by constructing a time line.) Do not round intermediate calculations. Round your answer to the nearest cent.
Answers
Answer:
NPV= $9,923.56
Step-by-step explanation:
Giving the following information:
Initial cost= -$55,000
Cash flows= $10,000
Cost of capital= 11%
To calculate the net present value, we need to use the following formula:
NPV= -Io + ∑[Cf/(1+i)^n]
First, we need to discount the cash flows:
PV= Cfn / (1+i)^n
Cf1= 10,000/1.11= 9,009.01
Cf2= 10,000/1.11^2= 8,116.22
Cf3= 10,000/1.11^3= 7,311.91
......
Cf12= 10,000/1.11^12= 2,858.41
Total PV= $64,923.56
Now, the NPV:
NPV= -55,000 + 64,923.56
NPV= $9,923.56
Solve: | −2n | + 10 = −50
(Find Solution)
Answers
Answer:
no solution
Step-by-step explanation:
| −2n | + 10 = −50
Subtract 10 from both sides.
| −2n | = −60
Since an absolute value can never equal a negative number, there is no solution.
Answer: no solution
Answer:
NO SOLUTION
Step-by-step explanation:
Since the left-hand side is always >0 the equation has no solution.
PLEASE HELPPP 10 points and will mark brainly!!!!!!
Answers
Answer:
-.095
Step-by-step explanation:
There are 176 slices of bread in 8 loaves
If there are the same number of slices in each loaf how many slices of bread are in 5 loaves
Answers
Answer:
110
Step-by-step explanation:
Divide 176 by 8 to get 22 and then multiply 22 by 5 to get 110
Answer:
110
Step-by-step explanation:
176/8 is 22 so there are 22 slices per loaf.
To find the amount of slices in 5 loaves you multiply 22 and 5 to get 110.
Hope this helped :)
