Answers
9514 1404 393
Answer:
x = 8/7
Step-by-step explanation:
.2(.7x-5)+0.2=1.4(x-1.6) . . . . given
Eliminating parentheses, we have ...
0.14x -1 +0.2 = 1.4x -2.24
1.44 = 1.26x . . . . . . . add 2.24-0.14x to both sides
x = 1.44/1.26 . . . . . . divide by the coefficient of x
x = 8/7 . . . . . . . . . . .simplify the fraction
__
As a repeating decimal, the value of x is ...
[tex]x=1.\overline{142857}[/tex]
However, the notation 1.(142857) is usually reserved for the case where the contents of parentheses are being multiplied by the factor in front. You would need to consult your instructions to see how the decimal version of the answer should be entered. (Quite often, rounding is suggested.)
_____
Additional comment
The equation in the text of your question is different from the one in the picture. We have answered for the one in the picture. The text asks for the solution of a quadratic. Those two solutions are approximately 1.085 and 16.057.
Answer:
the answer is x=8/7
Step-by-step explanation:
:)))
Related Questions
Can someone help me with this question?
(2,5) and (10,3) What is the slope and the y-intercept
Answers
Answer:
slope is -1/4
y intercept is 11/2
Step-by-step explanation:
the slope is (3-5)/(10-2) = -2/8 = -1/4 (using the slope formula)
the y intercept we can set up an equation, y= mx + b
we already know m, which is -1/4 (the slope), and to find b, we could just plug in one of the points to get
5 = (-1/4)*2+b
solve the equation
b = 11/2
The ratio of boys to girls in a class is 4:5
What fraction of the class are boys?
What fraction of the class are girls?
Answers
Answer:
4/9 for boys and 5/9 for girls
explanation:
there are 4 boys and 5 girls
so there are nine in total
if there are four boys and 9 in total then the fraction would be 4/9
and if there are 5 girls and 9 in total then the fraction would be 5/9
hope this helps and it plays Mark brainliest :D
Combine like terms to write an equivalent expression. Then use y = 5 to prove the expressions are equivalent. 1 + y + y + y + 1 Complete the statements.
The equivalent expression is . The value of both expressions when y = 5 is . The expressions are .
Answers
Answer:
The equivalent expression is
✔ 3y + 2
.
The value of both expressions when y = 5 is
✔ 17
.
The expressions are
✔ equivalent
.
Step-by-step explanation:
Answer:
The equivalent expression is
✔ 3y + 2
.
The value of both expressions when y = 5 is
✔ 17
.
The expressions are
✔ equivalent
.
Step-by-step explanation:
X + 8 + 2x <= 2x + 13
<= this symbol means greater than or equal to
I would like it step by step
Answers
Answer:
x<=5Step-by-step explanation:
x+8+2x <= 2x +13
x+8<= 13
x<=5Answer:
X <= 5
Step-by-step explanation:
Combine like terms
3x + 8 <= 2x + 13
subtracg 2x from both sides to get all the x’s on One side
x + 8 <= 13
subtract 8 from both sides to get x by itself
x <= 5
Use the graph or table to find the equation that represents the relationship. PLLSSS HELPPPPP
Answers
The equation that is shown by the table is y = 3x - 5
How to use the graph or table to find the equation that represents the relationship?The given parameter is the complete table
From the table, we have the following points
(2, 1) and (1, -2)
Calculate the slope using
m = (y2 - y1)/(x2 - x1)
This gives
m = (-2 - 1)/(1 - 2)
Evaluate
m = 3
The linear equation is represented as
y = m(x - x1) + y1
So, we have
y = 3(x - 2) + 1
Open the bracket
y = 3x - 6 + 1
Evaluate the like terms
y = 3x - 5
Hence, the equation that is shown by the table is y = 3x - 5
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The students in an eighth-grade class had a dance. They spent $500 for a local band. The equation below can be used to find the total profit, y, if the students sold x tickets to the dance.
f(x) = 4x – 500
Answers
4. (2)
Divide $27,000 into 3 parts so that the second part is three times the first and the
third part is twice the second.
Answers
Answer:
the first part is $2700
the second part is $8100
the third part is $16200
Step-by-step explanation:
Call the first part a (a>= 0)
=> the second part 3a
=> the third part 2.3a = 6a
Because the total of three parts is 27000 so we have:
a + 3a + 10a = 27000
<=> 10a = 27000
<=> a = 2700 (satisfied)
so
the first part is: a = $2700
the second part is: 3a = 3 . 2700 = $8100
the third part is: 6a = 6 . 2700 = $16200
p/s: actually there are some word I don't know how to express them in English. So please notice to correct them
Sep 18, 4:16:44 PM
A middle school took all of its 6th grade students on a field trip to see a symphony at
a theater that has 4100 seats. The students filled 2296 of the seats in the theater.
What percentage of the seats in the theater were filled by the 6th graders on the trip?
Answers
The percentage of seats in the theatre that were filled by the 6th graders on the trip will be 56 %.
We are given that:
Total number of seats in the Symphony theatre = 4100 seats
The number of 6th grade students who filled the seats in the Symphony theatre = 2296
Now, we need to find the percentage of seats that were filled by the 6th grade students on the trip.
Percentage of 6th grade students = 2296 / 4100 × 100
Percentage of 6th grade students = 56 %
Therefore, we get that, the percentage of seats in the theatre that were filled by the 6th graders on the trip will be 56 %.
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In a situation where the sample size was 28 while the population standard deviation was increased, what would be the impact on the confidence interval?
A) It would become narrower due to using the t distribution
B) It would widen with more values
C) It would become wider due to using the z distribution
D) It would become wider with more dispersion in values
Answers
Answer:
C; It would become wider due to using the z-distribution
Step-by-step explanation:
Mathematically, we go on to look at the formula for confidence interval calculations here
The formula involves multiplying z by the s
which is the z-value and the standard deviation
Increasing the standard deviation value means we are increasing the product of multiplying z and s
This means that we are getting a larger value for the multiplication
Thus, we now have a wider confidence interval value as a result of a larger product
So this means that the CI would become wider due to the usage of the z-distribution
A parachutist's elevation changes by - 77 ft in 7 seconds. What is the change in the parachutist's elevation each second?What is the change in the parachutists elevation changes feet each second.
Answers
Answer:
-11 feet per second
Step-by-step explanation:
Answer:
Step-by-step explanation:
I Honestly don't know i'm only on here to get answers.
Find the minimum value of
C = 2x + y
subject to the following constraints:
2x + 3y 2 24
4x + y 2 38
X>0
y 20
C = [?]
Answers
Answer:it’s 20
Step-by-step explanation:
Fill in the blank with the correct response.
Twenty-seven is 25% of _____.
Answers
Answer:
70
Step-by-step explanation:
Answer:
its 108
Step-by-step explanation:
27x4=108
Plz help ASAP I’ll give brainliest 47 minutes to answer hurry
5
6
7
8
10
Ray created the list of factors for 48 below.
48: 1, 2, 3, 4, 6, 7, 8, 12, 16, 24, 48
Which number should be removed from his list to make the list accurate?
7
ОООО
16
Answers
Answer:
the factors of 48 are 1 2 3 4 6 7 8 12 16 24 48
If the simple interest on $5,000 for 9 years is $2,700, then what is the interest rate?
The rate is?
PLZZZZZ HELP
Answers
Answer:
the interest rate is 3/5
Step-by-step explanation:
i=prt
2700= 5000•r•9
2700= 45000r
2700/45000= 45000r/45000
2700/45000= r
*reduce the fraction to simplest form*
r= 3/5
A spinner is divided into equal sections of three possible colors. There are 2 yellow
sections, 2 blue sections, and 4 red sections. Use the drop-down menus to complete the
statements about the likelihood of the given events related to the spinner.
Answers
Spinning a blue is unlikely
Spinning a red or yellow is likely
Spinning another colour is impossible
Spinning red is neither likely nor unlikely
Distinguishing Likelihood From ProbabilityFundamentally crucial is the contrast between probability and likelihood: While likelihood is attached to hypotheses, probability is attached to potential outcomes. This first column's goal is to clarify this distinction.
The set of potential outcomes is complete and mutually exclusive. Let's say we ask a participant to forecast the results of ten coin flips. There are only 11 potential outcomes (0 to 10 correct predictions). One and only one of the potential outcomes will ever be the actual outcome. Therefore, the probability associated with the potential outcomes must add up to 1.
Contrary to outcomes, hypotheses are neither exhaustive nor mutually exclusive.
Learn more about probability
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A plane takes off at 50 feet below sea level and climbs 1,542 feet. At what altitude is the plant currently flying?
Answers
Answer:
-1492
Step-by-step explanation:
1) based on the given conditions, formulate:
50-1542
2) calculate:
50-1542= -1492
Which table correctly lists the reason to prove Line 1 = line 3 given that AB intersects CD
Answers
Answer:
D
Step-by-step explanation:
D
Answer: D
Step-by-step explanation: i just took the test
I’m stuck but the next drop down is above or below
Answers
Answer:
less; below
Step-by-step explanation:
We can change both fractions to improper fractions first for easier comparison.
-[tex]\frac{7}{5}[/tex] = -
-1[tex]\frac{1}{5}[/tex] = -[tex]\frac{5}{5}[/tex] -
-1[tex]\frac{1}{5}[/tex] = -[tex]\frac{6}{5}[/tex]
As you can see, -[tex]\frac{7}{5}[/tex] has a higher absolute value but both fractions are negative so it has a lesser value than -[tex]\frac{6}{5}[/tex] and thus would also be below -[tex]\frac{6}{5}[/tex].
Use Pythagorean Theorem to solve for side length AC. Round your answer to the
nearest tenth.
34 m
41 m
O AC 62.4 m
O AC = 56.2 m
O AC- 75.0 m
O AC = 53.3 m
Answers
Answer: AC=53.3
Step-by-step explanation:
So we got the genious's theory that we all love/hate with
a^2 + b^2 = c^2
Now the longest side which in our case is also side (AC) is always gonna be C. So remember the longest side is always C. Since they give us the other 2 sides, we know those sides are (A) and (B) in the theorem.
So lets substitute.
34^2 + 41^2 = C^2
Simplify and It Equates to:
1156 + 1681 = c^2
2837 = c^2
Now Square Both Sides to cancel out that pesky ^2 on the (C) variable.
And you get 53.26 which rounds to 53.3 on your test. Good Luck!
Valeri ran 2 miles in 20 minutes if she continue to run at the same rate how far will she have ran after 50 minutes
Answers
2. Billy's Bikes charges an initial fee of $5 per day to rent a beach cruiser, plus
$2.00 per hour. Which graph models this situation? *
Graph it
Answers
A system of equations is shown. `4x + 3y = 8` `4x` `–` `3y =` `-16` solve for x
Answers
Answer:
(-1;4).
Step-by-step explanation:
[tex]\left \{ {{4x+3y=8} \atop {4x-3y=-16}} \right. \ + \ = > \ \left \{ {{8x=-8} \atop {4x+3y=8}} \right. \ = > \ \left \{ {{x=-1} \atop {4x+3y=8}} \right. \ = > \ \left \{ {{y=4} \atop {x=-1}} \right.[/tex]
A toy manufacturer needs a piece of plastic in the shape of a right triangle with the longer leg 8 cm more than the shorter leg and the hypotenuse 16 cm more than the shorter leg. what’s the perimeter of the triangle ?
Answers
The perimeter of the triangle is 3x + 24 cm.
What is the perimeter of the triangle?A right triangle is a three-sided triangle that is made up of a length, base and the hypotenuse. The hypotenuse is the longest side of the right triangle The sum of the square of the two other sides of the triangle is equal to the square of the hypotenuse. The sum of angles in a right triangle is 180 degrees.
The perimeter of a right triangle is the sum of the length of the three sides of the triangle.
Perimeter = hypotenuse + base + height
Base = x Height = 8 + x Hypotenuse = 16 + xPerimeter = x + 8 + x + 16 + x
3x + 24 cm
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Annabelle reads 3/4 of a page/minute. How many pages can Annabelle read in 20 minutes?
Answers
Answer:
she can read 15 pages
Step-by-step explanation:
17.
Which of the following are equiangular quadrilaterals?
a. parallelogram and rectangle
b. trapezoid and rhombus
c. square and rhombus
d. square and rectangle
e. none of these
Answers
at the local fair one barn is displaying chickens and rabbits. there are 140 chickens and 160 rabbits. each animal is in its own cage the cages will be arranged in equal rows without mixing animal types. what is the greatest number of animals that can be in each row.
Answers
Answer:
the answer would be 10 animals in each row without mixing up the animals
Step-by-step explanation:
number 15 please
logarithms
algebra two
Answers
Answer:
hope this helps
Step-by-step explanation:
look at the picture
What error did Wanda make?
None. Wanda’s work is correct.
Wanda converted the percent to a decimal incorrectly. It should be 0.073.
Wanda converted the percent to a decimal incorrectly. It should be 0.73.
Wanda has the wrong label. It should be hours, not dollars.
Answers
Answer:
C
Step-by-step explanation:
the guy above sucks
None. Wanda’s work is correct.
Wanda converted the percent to a decimal incorrectly. It should be 0.073.
Wanda converted the percent to a decimal incorrectly. It should be 0.73.
Wanda has the wrong label. It should be hours, not dollars.
Step-by-step explanation:
PLEASE HELP i will mark u brainliest
Answers
Answer:
Help: If 30 miles takes up 1 gallon what’s 30x15?
Step-by-step explanation:
In a really exciting part of the book, the student read 18 pages in one sitting. For how many minutes did she read?
Answers
It depends on the average reading speed of a person, it is usually from 60s or 1min per page.