The evaluated expression needed is [tex]\frac{18}{5}[/tex] or 3[tex]\frac{3}{5}[/tex]
The expression that needs to be evaluated is
1 [tex]\frac{2}{5x}[/tex] + 3[tex]\frac{2}{3}[/tex] for x = [tex]\frac{1}{4}[/tex]
What is a mixed fraction?A mixed fraction is defined as a fraction formed by combining a whole number and a fraction. For example, if 8 is a whole number and 1/2 is a fraction, then 8 1/2 is a mixed fraction.
We are being asked here to solve the mathematical equation by substituting the value of x for 1/4. If we go ahead and do the substitution we have;
1[tex]\frac{2}{5(0.25)}[/tex] + 3[tex]\frac{2}{3}[/tex]
where x = [tex]\frac{1}{4}[/tex] = 0.25
this is equal to
1[tex]\frac{2}{1.25}[/tex] + 3[tex]\frac{2}{3}[/tex] =
1 * 8/5 + 3 * 2/3
8/5 + 2 = 18/5 = 3[tex]\frac{3}{5}[/tex]
Learn more on mixed fractions here https://brainly.com/question/17388313
Which statements about 5,752 ÷ 7 are correct? Select all that apply.
The quotient is less than 800.
The quotient is greater than 800.
There is no remainder.
There is a remainder of 3.
There is a remainder of 5.
Answer: The quotient is greater than 800 and the remainder is 5
Step-by-step explanation:
First of all, lets do the division
5752/7=821 5/7
so, number 2, number5 are correct
Hello, please help me out and add steps if you can!
Answer:
ldk
Step-by-step explanation:
sorry
Sandy works at a clothing store. She makes $7 per hour plus earns 10% commission on her sales. She worked 75 hours over the
last two weeks and had a total of $1,982 in sales before taxes.
Which of the following is closest to how much she will earn in hourly wages and commission for those huo weeks
What are the following closest?
solve pls brainliest
Answer:
x=9
Step-by-step explanation:
2x+7x=81
add same variables
9x=81
divide by 9 to isolate x
x=9
Let's solve your equation step-by-step.
81=2x+7x
Step 1: Simplify both sides of the equation.
81=2x+7x
81=(2x+7x)(Combine Like Terms)
81=9x
81=9x
Step 2: Flip the equation.
9x=81
Step 3: Divide both sides by 9.
[tex] \dfrac{9x}{9} = \dfrac{81}{9} \\ x = 9[/tex]
a car uses 30 gallons of gasoline for a trip of 750 miles. How many gallons would be used on a trip of 450 miles
Answer:
The answer is 18
Step-by-step explanation:
Given;A car uses 30 gallons of gasoline for a trip of 750 miles.
To Find;Gallons would be used on a trip of 450 miles.
Now, Gasoline used for one mile
30 ÷ 750 = 0.04
So,
0.04 × 450 = 18
Thus, 18 gallons would be used on a trip of 450 miles.
-TheUnknownScientist 72
Identify the vertex and directrix of each.
y = x2 + 2x - 4
Answer:
See below
Step-by-step explanation:
Convert equation to vertex form [tex]y=(x-h)^2+k[/tex] by completing the square:
[tex]y=x^2+2x-4[/tex]
[tex]y+5=x^2+2x-4+5[/tex]
[tex]y+5=x^2+2x+1[/tex]
[tex]y+5=(x+1)^2[/tex]
[tex]y=(x+1)^2-5[/tex]
Vertex:
[tex](h,k)\rightarrow(-1,-5)[/tex]
Directrix:
[tex]y=k-\frac{1}{4a}\rightarrow y=-5-\frac{1}{4(1)}\rightarrow y=-\frac{21}{4}[/tex]
What is the slope of the line?
Answer: 2
Step-by-step explanation:
The slope of a line is [tex]\frac{rise}{run}[/tex] (rise over run)
This means for every point you must go up/down to get your next point you divide it by every point you go right/left.
From one point to the next it goes up 2 (rise) and right 1 (run)
[tex]\frac{2}{1} = 2[/tex] so that is your slope
Take two points
(0,1)(1,3)Slope
m=(y_2-y_1)/x_2-x_1m=(3-1)/1m=2Option C
Which expression can be placed on the right side of the equals sign to form an equation? 2 + 3³ = 5² + 4 10⋅2−9 5³ 3+4⋅3
will give 50 points pls help asap!!!
Answer:
Directions: Give the shortcut key for the following commands: 1. Open 2. Save 3. New document 4. Copy 5. Undo 6. Redo 7. Paste 8. Print 9. Center 10. Highlight
Use algebra tiles to solve 3x+3=12.
Answer:
x=3 I am new to this so I have no idea if this is what you are asking for
A garment is on sale for 35% off the regular price. If the regular price is $48. 80, then what is the sale price?.
Answer:
The sale price is $31.2
Step-by-step explanation:
35% off of 48 is 31.2
Divide 78.432 + 2.4 =
1. Write as a fraction
2. Write with a whole number divisor
3. Use the division algorithm
Answer:
equation we have to do addition or divide
hi bffs please help me answer this question :)
Answer:
6.0
Step-by-step explanation:
if 10 is multiplied by 1.5 it turns into 15
is 13 is multiplied by 1.5 it turns into 19.5
so the opposite must be true
when x is multiplied by 1.5 it is 9
when 9 is divided by 1.5 it is x
9 / 1.5 is 6
so x is 6
An employee earned $31,900.00 in a year and had $2,328.70 withheld for federal income tax. What federal income tax percent was withheld? If necessary, round your answer to the nearest hundredth of a percent.
Answer:
7.3%
Step-by-step explanation:
2,328.70 / 31,900
(You might want a calculator)
0.073
turn this into a percentage
7.3%
Doesnt need to be rounded.
The federal income tax percentage withheld will be 7.3%.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
An employee earned $31,900.00 in a year and had $2,328.70 withheld for federal income tax.
Then the federal income tax percent withheld will be given as,
P = (2328.70 / 31900) x 100
P = 0.073 x 100
P = 7.3%
The federal income tax percentage withheld will be 7.3%.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
Complete the square to form a perfect trinomial. Then factor the trinomial.
Trinomial means there must be three unknown variables .
There is w^2 According to law of degrees there are two variables.We need one moreHence the equation will be
w^2-11w+2wxA popular streaming service surveyed all of the students at a school about the number of TV shows they streamed
last Friday night, then recorded the results.
Let M = the number of TV shows streamed last Friday night.
Number of Shows Streamed 0
1
2
3
4.
5
Probability
0.095
0.203
0.326
0.187
0.174
0.015
Calculate the standard deviation of M.
1.251 shows
1.566 shows
1.708 shows
2.917 shows
Using the given discrete distribution, it is found that the standard deviation is of 1.251 shows.
What are the mean and the standard deviation of a discrete distribution?The mean is given by the sum of the multiplications of each outcome by it's probability, thus:The standard deviation is given by the square root of the sum of the squares of each outcome subtracted by the mean, multiplied by it's probability, thus:The distribution is:
[tex]P(X = 0) = 0.095[/tex]
[tex]P(X = 1) = 0.203[/tex]
[tex]P(X = 2) = 0.326[/tex]
[tex]P(X = 3) = 0.187[/tex]
[tex]P(X = 4) = 0.174[/tex]
[tex]P(X = 5) = 0.015[/tex]
Hence, the mean is:
[tex]E(X) = 0.095(0) + 0.203(1) + 0.326(2) + 0.187(3) + 0.174(4) + 0.015(5) = 2.187[/tex]
The standard deviation is:
[tex]\sqrt{V(X)} = \sqrt{0.095(0-2.187)^2+0.203(1-2.187)^2+0.326(2-2.187)^2+0.187(3-2.187)^2+0.174(4-2.187)^2+0.015(5-2.187)^2} = 1.251[/tex]
You can learn more about the mean and the standard deviation of a discrete distribution at https://brainly.com/question/13008984
a kitten's weight increase by 12% each week for 4 mouths the little currently weighs 2.6 pounds which will not calculate how much the kitten will weigh in 1 week?
a. 2.6(0.12)
b. 2.6(1.12)
c. 2.6 + 2.6(0.12
d 2.6 + 0.312
Answer:
a. 2.6(0.12)
Step-by-step explanation:
Check all of the other answers: b. c. and d. are variations of equations that equal to 2.912. 2.6(0.12) is not the correct equation because it equals to 0.312. The kitten‘s weight must increase, so that is the incorrect equation.
Which pair of ratios are equivalent? ( one answer )
1. 9/5 , 27/10
2. 0.5/8 , 2/32
3. 6/4 , 30/24
4. 1.2/6.1 , 3.6/12.4
Answer:
Option 2 is correct because the result was equal to the other.Step-by-step explanation:
Let's simplify all the ratios to find which pairs are equivalent.
__________________________________________________Option 1)
9/5 ≠ 27/10This is because neither any fractions can be simplified, nor they are equal. Hence, Option 1 is wrong.
__________________________________________________________
Option 2)
0.5/8 = 2/32=> 0.5 x 2/8 x 2 = 2 ÷ 2/32 ÷ 2=> 1/16 = 1/16Since both of them are giving the same value, Option 2 is correct.
__________________________________________________________
Option 3)
6/4 = 30/24=> 6 ÷ 2/4 ÷ 2 = 30 ÷ 6/24 ÷ 6=> 3/2 ≠ 5/4Since both fractions are not equal after simplifying, Option 3 is incorrect.
__________________________________________________________
Option 4)
1.2/6.1 = 3.6/12.4=> 12/61 ≠ 9/31Since both fractions are not equal after simplifying, Option 4 is incorrect.
__________________________________________________We can conclude that Option 2 is correct because the result was equal to the other.
Hoped this helped.
[tex]BrainiacUser1357[/tex]
( n2 + 8n + 8 ) – ( 4n + 2 )
Answer:
2+4+6
Step-by-step explanation:
Please help...
Find the volume of the irregular
figure.
2 cm
4 cm
2 cm
4 cm
? ]cm3
5 cm
7 cm
4 cm
6 cm
Answer:
In the small cuboid
length=4cm
breadth=2 cm
height=7-5=2 cm
Volume=l×b×h
Or, V=4×2×2
or, V=16cm^3
Also,
In the big cuboid
length=6cm
breadth=4 cm
height=5 cm
Volume=l×b×h
Or, V=6×4×5
or, V=120cm^3
Total volume=16cm^3+120cm^3
or, Total volume=136cm^3
what is (5x^4 +3x^2 -x)-(-5x^4-2x^2 +45) in FOIL Method?
can't be solve sa foil method Yung ganyan equation
-0.6 + (- 2.5)
can someone tell me and explain please the answer.
How many real solutions does the equation V2x + 4
= 3x + 1
have?
Answer:
5v^2x + 4
Step-by-step explanation:
I'm not sure but i hope this help's
To solve the equation 0.2x + 3.1 = 0.5x + 2.4, you need to multiply the equation by:
a. 10
b. 100
c. 1000
d. None of the above
Answer:
d
Step-by-step explanation:
Find the surface area of the rectangle prism (above using its net (below)
Answer:
48 units²
Step-by-step explanation:
Use the surface area for a rectangular prism:
[tex]S.A.=2(wl+lh+hw)[/tex]
And substitute:
[tex]S.A.=2((5)(2)+(2)(2)+(2)(5))\\S.A.=2(10+4+10)\\S.A.=2(24)\\S.A.=48[/tex]
And place units² at the end.
HELP PLEASE ASAP!!! I NEED HELP
Please help asap! :)
Answer:
g(x)= -2 x+1
Step-by-step explanation:
g(x)= -2 x+1
there isnt much for my to explain, sorry.
A desk is purchased for $277. Calculate its worth after depreciating for 5 years if its depreciation rate is 20% per year.
What is the Line of Symmetry?
Simplify an expression for the perimeter of the rectangle.
Answer:
length =5w-2
breadth =3w
l×b
3w(5w-2)
it gives u 15w^2 - 6w as the answer
Please help and show work if possible.
Answer:
48
Step-by-step explanation:
89 - 41 = 48
they have to add up to 89
