Given:
The equation is
[tex]-\dfrac{1}{4}d-\dfrac{2}{5}d=39[/tex]
To find:
The value of d.
Solution:
We have,
[tex]-\dfrac{1}{4}d-\dfrac{2}{5}d=39[/tex]
Taking LCM, we get
[tex]\dfrac{-5d-8d}{20}=39[/tex]
[tex]\dfrac{-13d}{20}=39[/tex]
Multiply both sides by 20.
[tex]-13d=39\times 20[/tex]
Divide both sides by -13.
[tex]d=\dfrac{39\times 20}{-13}[/tex]
[tex]d=-3\times 20[/tex]
[tex]d=-60[/tex]
Therefore, the value of d is -60.
Solve for the variableeeeee plzzz
Answer: x= -7
Explanation for answer:
Answer:
x = -7
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other.
First, add 2x and subtract 18 from both sides:
5x - x + 18 (-18) (+2x) = 6 - 2x (+2x) - 30 (-18)
5x - x + 2x = 6 - 30 - 18
Next, simplify. Combine like terms:
(5x - x) + 2x = 6 + (-30 - 18)
(4x) + 2x = 6 + (-48)
6x = -42
Next, fully isolate the variable, x, by dividing 6 from both sides:
(6x)/6 = (-42)/6
x = -42/6 = -7
x = -7 is your answer.
~
5.
In the given right triangle, find the missing length to the nearest tenth.
A. 25 ft
B. 24.1 ft
C. 8.5 ft
D. 7.9 ft
Answer:
The answer is A. 25 ft
Step-by-step explanation:
Given a=24 and b=7,
c = 25
∠α = 73.74° = 73°44'23" = 1.287 rad
∠β = 16.26° = 16°15'37" = 0.28379 rad
h = 6.72
area = 84
perimeter = 56
inradius = 3
circumradius = 12.5
Catherine is going cycling with 3 friends. They take 2 L of water for each person. At the end of the day they have 0.8 L of water left. How much water have they drunk?
I need help with this problem please
Answer:
150
Step-by-step explanation:
Answer:
150
Step-by-step explanation:
PEMDAS = Parenthesis, exponents, multiplication, division, addition, subtraction.
3 · [(22 + 4 ÷ 2 + 2) + 24]
3 · [(22 + 2 + 2) + 24]
3 · [26 + 24]
3 · [50]
150
Which expression is equivalent to 4/9 (2n - 3n)
A. 8/9 n - 1 1/3
B.8/9 n - 3
C. 2n - 3
D. 2n - 1 1/3
can y’all help me???
Answer:
4 miles
Step-by-step explanation:
2/3 x 6= 4
Alec says the sum of two numbers can never be less than either number.Use a model to explain why Alex is incorrect.
Answer:
Answer:
If you put two things together it cannot be less than what was originally there.
Step-by-step explanation:
For example if you have two bowls of soup and you add them together you will have more soup.
I GIVE A BRAINLIEST I DO ANYHTING JUST HELP
The lines graphed below show the amounts of water in two tanks as they were being filled over time.
For each tank, explain whether or not there is a proportional relationship between the amount of water, in gallons, and the time, in minutes.If there is a proportional relationship, identify the unit rate. Use specific features of the graph to support your answer.
Answer:
(100,0.5)
Step-by-step explanation:
Unit Rate: k=200x
During the summer, you had an ice cream cone with
your friends almost every day. Your parents bought
a half gallon of ice cream for $4.75. It was on
Sale for 15% off. What was the sale price?
Answer:
$4.04
Step-by-step explanation:
Since the ice cream is 15% off, that means you will have to subtract 0.15 from 1, since 1 is 100%, and 0.15 is 15%. If you do the math, then you will get 0.85, which translates to 85%. So now that we have found the percentage of the original price that we have to pay, we can do some more advanced calculations. Since we found the 1 - 0.15 = 0.85, we will multiply the original price, which is $4.75, by 0.85. You can do this by hand or by calculator. You will get 4.0375, which is your answer. Since this is about money, you will have to add a $ sign at the beginning, which would be $4.0375. Of course, you can't pay a percentage of a cent, so you would have to round that up to $4.04. In conclusion, the sale price of the half-gallon of ice cream is $4.04.
Please mark as Brainliest!!!Find the length of side x in simplest radical form with a rational denominator.
Answer:
x = [tex]\sqrt{3}[/tex]/6
Step-by-step explanation:
30-60-90 triangles have legs in the ratio of 1 : [tex]\sqrt{3}[/tex] : 2
create a proportion: (6 ÷[tex]\sqrt{3}[/tex]) = (1÷x)
cross-multiply: 6x = [tex]\sqrt{3}[/tex]
divide by 6
Plzzzz plzzz plzzz ps keiskskks
Answer:
42
Step-by-step explanation:
x/6=7
x=42
Answer:
42 should be the answer
Step-by-step explanation:
x ÷ 6 = 7
x ÷ 6 x 6 = 7 x 6
x = 42
plzzzzzzzzzzzzzzzzzzzzzzz
Answer:
18x to the power of 2 -15x+2
Step-by-step explanation:
At a middle school, 74 students have freckles. There are 258 students in the school. To the nearest tenth of a percent, what percent of the students have freckles? *
Answer: 3.4%
Step-by-step explanation:
divide 258 and 74 then round that answer to the nearest tenth place.
Answer: 28.7%
Step-by-step explanation:
74 ÷ 258 = 0.2868
0.2868 ---> 28.68 ---> 28.7%
Find the inverse of function f.
$() = 9x + 7
OA /--) = 7x + 9
OB. 1 (1) = = -1
Oc. 7-1() = -98
OD. () = gr - 1
7
Answer:
C) f-1(x) = -9x - 7 the inverse of multiplication is division
Find the coordinates of the vertices of each figure after the given transformation.
1) translation: (x, y) = (1 + 1, y - 5)
D(2.0), E(1.2), F(2.3). G(4,2)
A) D(-1, 1), E(-2, 3), F(-1,4), G(1,3) B) D(-4,-1), E(-5, 1), F(-4,2), G(-2, 1)
C) D(3,-5), E(2, -3), F(3,-2), G(5,-3) D) D(-4,1), E(-5,3), F(-4,4), G(-2,3)
ОА
О.
B
С
O
O
D
what is 3/10 x 5/36 please answer
Answer:
1/24
Step-by-step explanation:
Pls mark me the brainiest thx.
Hope this helps!
1.
The diagram below shows a composite shape formed by joining two rectangles.
4 cm
I
xcm
12 cm
(x + 2)cm
Diagram not drawn to scale
The area of the larger rectangle is 4 times the area of the smaller rectangle.
Calculate the dimensions of the smaller rectangle.
You must justify any decisions that you make.
9514 1404 393
Answer:
24 cm^2
Step-by-step explanation:
The larger rectangle has dimensions in cm of 12 by (4+x). The smaller rectangle has dimensions of (x+2) by x. The area of the larger is 4 times the smaller, so ...
12(4+x) = 4(x)(x+2)
3(4+x) = x(x+2) . . . . . . divide by 4
x^2 +2x -3x -12 = 0 . . . eliminate parentheses, subtract 3(4+x)
(x -4)(x +3) = 0 . . . . . . . factor
The positive solution is x = 4, so the area of the smaller rectangle is ...
x(x+2) = 4(4+2) = 24 . . . cm^2
Hey guys I really need help on this one!
(0, 4) and (4,0)
Rate of Change:
b=
Answer:
b=4
Step-by-step explanation:
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELPPPPPPPPPPPPPPPP
Felix worked at a music shop during the summer. The table below shows some of Felix’s hours and earnings. The amount of money he earned is proportional to the number of hours he worked.
2. Let x represent the number of hours he worked, y represents the amount of money he earned.Write an equation that represents this relationship.
3. If Felix worked 180 hours, then how much money did he earn?
Answer:
2. y=9x
3. 180*9 = 1620
Step-by-step explanation:
2. y = mx+b, so find the slop efirst
lacampanella avatar
so take the first two points you got
lacampanella avatar
(2,18) and (5,45),
lacampanella avatar
(45-18)/(5-2) = 9
lacampanella avatar
then use (2,18)
lacampanella avatar
18= 9*2+b
lacampanella avatar
so b=0
3. y = 9x
x= 180. y = 9*180 = 1620
Maurice has completed 64 pages of the research paper he is writing. That is 80% of the required length of the paper. What is the required length of the paper?
Answer:
80 pages
Step-by-step explanation:
Let the required length of paper = x
Hence:
80% of x = 64 pages
80/100 × x = 64 pages
80x /100 = 64 pages
Cross Multiply
80x = 100 × 64 pages
x = 6400/80
x = 80 pages
Therefore, the required length of the paper = 80 pages
help is need! look at the question
Answer:
Yes
Step-by-step explanation:
Plug in the numbers: 3≤3-2(0)
3≤3-0
3≤3
f(x) = x^2+ 2x-5
g(x) = 3x^2-4x+1
What is f(x) - g(x)?
A) [tex]-2x^2-2x-4[/tex]
B) [tex]-2x^2+6x-6[/tex]
C) [tex]4x^2-2x-4[/tex]
D) [tex]4x^2+6x-6[/tex]
Answe
Step-by-step explanation:
B
please hellp find x y and z
Answer:
angle x = 98
angle y = 82
angle z = 82
Step-by-step explanation:
angle y + 98 = 180; therefore, angle y = 82 degrees
angles z and y are alternate interior angles and are congruent (equal)
angle x is 98 degrees because angles x and y are same-side interior and their angles are supplementary (add up to 180 degrees)
The manager of a movie theater wants to know the number of adults and children who go to the movies. The theater charges $8 for each adult and $4 for each child. At a showing where 200 tickets were sold the theater collected $1304.
How many adult tickets were sold.?
Tell whether the angles are adjacent or vertical. Then find the value of x.
I finished the angles, but need the value of x.
Answer : The angles are vertical angles and the value of x is [tex]25^o[/tex]
Step-by-step explanation :
Adjacent angles : It is defined as the two angles that have the common arm and common vertex.
Vertical angles : It is defined as the two lines intersect each other and form angles. The opposite angles are known as vertically opposite angles.
And we know that the vertically opposite angles are equal.
In the given image, the angles are vertical angles and vertically opposite angles are equal.
So,
[tex](4x-25)^o=75^o[/tex]
[tex]4x-25^o=75^o[/tex]
[tex]4x=75^o+25^o[/tex]
[tex]4x=100^o[/tex]
[tex]x=\frac{100^o}{4}[/tex]
[tex]x=25^o[/tex]
Therefore, the angles are vertical angles and the value of x is [tex]25^o[/tex]
1) work out the size of angle x
2) give reasons for your answer
HELP PLEASE
1. (03.08)
Solve x2 + 2x + 9 = 0. (2 points)
Ο χ= -2412
X= -2+212
Ο Ο Ο Ο
χ= -14412
Ο χ= -14 21 2
Answer:
Step-by-step explanation:
if we are supposed to solve [tex]x^{2}[/tex] + 2x + 9 = 0 there here is the solution
using the quadratic formula
= (-2 ± [tex]\sqrt{2^{2}-4*9 }[/tex] )/2
= (-2 ± [tex]\sqrt{-32}[/tex]) / 2
= (-2 ± i [tex]\sqrt{16*2}[/tex])/2
= (-2 ± i 4[tex]\sqrt{2}[/tex])/2
= -1 ± i 2[tex]\sqrt{2}[/tex]
complex number land :)
Mr. Tren splits a 12-pound bag of soil equally between 5 flower pots.
Which equation shows how many pounds of soil Mr. Tren put in each flower pot?
A. 12 divided by 5 = 2 2/5
B. 5 divided by 12 = 2 5/12
C. 12 divided by 5 = 2/5
D. 5 divided by 12 = 5/12
Answer:
A
Step-by-step explanation:
I WILL GIVE YOU BRAINLY PLSS
What is the solution of x + 6 11
C. x –1
PLSS SHOW YOUR WORK PLSS
Answer:
9.34
Step-by-step explanation:
add 6 then mulitiply 11-1 xC=9.34