8x - 3(2x + 5) = 13
Show work please
Answers
x = 14
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RequirEd AnswEr :
=> 8x - 3(2x + 5 ) = 13
=> 8x - 6x - 15 = 13
=> 2x - 15 = 13
=> 2x = 13 + 15
=> 2x = 28
=> x = 28/3
=> x = 14
Hope this helps!! :)
Related Questions
Use Pythagorean theorem to solve the following right triangles, put your answer in simplest radical form:
Answers
Answer:
Step-by-step explanation:I found the answer on this web[tex]^{}[/tex]site. It seems correct! Link Below!ly/3fcEdSx
bit.[tex]^{}[/tex]
helppppppppp meeeeeeeeeee
Answers
Answer:
68 in^2
Step-by-step explanation:
Area of two trapezoids:
(7+3)5 = 50
Area of two squares:
2(3x3) = 2(9) = 18
50 + 18 = 68
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
68
Step-by-step explanation:
3x3=9 (top square)
3x3=9 (bottom square)
(1/2) (5) (2) = 5 (triangle 1)
(1/2) (5) (2) = 5 (triangle 2)
(1/2) (5) (2) = 5 (triangle 3)
(1/2) (5) (2) = 5 (triangle 4)
10 x 3 = 30 (middle rectangle)
9+9+5+5+5+5+30=68
The area of the rectangle is 65 yd^2,and the length of the rectangle is 3 yd less than twice the width. Find the dimensions of the rectangle
Answers
Answer: Length = 10cm
Width = 6.5cm
Step-by-step explanation:
Let the width of the rectangle be represented by x.
Therefore, the length of the rectangle will be: = (2 × x) - 3 = 2x - 3
Therefore area of a rectangle = length × width
x(2x - 3) = 65
2x² - 3x = 65
2x² - 3x - 65 = 0
2x² + 10x - 13x - 65 = 0
2x(x + 5) - 13(x + 5) = 0
(2x - 13)(x + 5) = 0
2x - 13 = 0
2x = 13
x = 13/2
x = 6.5
Width = 6.5cm
Length = 2x - 3
= 2(6.5) - 3
= 13 - 3
= 10cm
Therefore, the length of the rectangle is 10cm and the width is 6.5cm.
formula for finding the radius of a semi circle
Answers
Answer:
So, the area of a semicircle is 1/2(πr2 ), where r is the radius.
there are 20 students in a homeroom how many different ways can they be chosen to be elected president vice president treasurer and secretary
Answers
Answer:
116280
Step-by-step explanation:
n=20
r=4
nPr
20P4 = 116280
The students can be chosen in 116280 different ways to be elected as president, vice president, treasurer and secretary.
What is permutation?"It is a mathematical calculation of the number of ways a particular set can be arranged, where the order of the arrangement matters."
Formula of permutation:The number of ways of obtaining an ordered set of 'r' elements from a set of 'n' elements.
[tex]^{n}P_r=\frac{n!}{(n-r)!}[/tex]
For given example,
there are 20 students in a homeroom
⇒ n = 20
Students can be elected president, vice president, treasurer and secretary.
⇒ r = 4
So, using the formula of permutation, the number of different ways they can be chosen to be elected president, vice president, treasurer and secretary would be,
[tex]\Rightarrow ^{n}P_r=\frac{n!}{(n-r)!} \\\\\Rightarrow ^{20}P_4=\frac{20!}{(20-4)!} \\\\\Rightarrow ^{20}P_4=\bold{116280}[/tex]
Therefore, these 20 students can be chosen in 116280 different ways to be elected as president, vice president, treasurer and secretary.
Learn more about permutation here:
https://brainly.com/question/1216161
#SPJ2
Can you help on this problem
r + s² at r = 4, s = 1
show work plz
NO LINKS
Answers
Answer:
5Step-by-step explanation:
Given Question:[tex]r + {s}^{2} [/tex]
Given values -
r = 4 , s = 1
Therefore putting their values in the question,
[tex]4 + {1}^{2} [/tex]
= 4 + 1
= 5 (Ans)
HELP ASAP. BEING TIMED AND WILL GIVE BRAINLIEST!!!
Draw and upload a box plot representing the following data set: 22,35,18,30,37,20,40,18,38,38,23,19,27,31,34
Answers
Answer:
hope this helps you out :)
The group is planning to build a fence around the garden. How many yards of fencing materials do they need for the fence? Show your work
I WILL GIVE 90 POINTS AND BRAINLIEST!!!
Answers
Answer:
Solution given;
length(L) =6+12=18yd
again
b=√(15²-12²)=9yd
so
breadth (B)=8+9=17yd
since it is a rectangular shape so
perimeter of rectangle=2(L+B)=2(18+17)=70yd
70 yards of fencing materials do they need for the fence
Pretty Petals flower shop is having a 20% off sale on carnation flower arrangements. Beth has ordered a boquet that is originally $24.56. What is the sale price?
Please answer seriouly if you dont i will report
Answers
Answer:
19.648
Step-by-step explanation:
because 24.56 / 5 = 4.912
4.912*4=19.648
Complete the equations below. 8.8 \div 4 =8.8÷4=8, point, 8, divided by, 4, equals \text{ tenths}\div 4 tenths÷4start text, space, t, e, n, t, h, s, end text, divided by, 4 8.8 \div 4 =8.8÷4=8, point, 8, divided by, 4, equals \text{ tenths} tenthsstart text, space, t, e, n, t, h, s, end text 8.8 \div 4 =8.8÷4=8, point, 8, divided by, 4, equals
Answers
Answer: first one is 88 tenths, next one is 22 tenths, and last one is 2.2
Step-by-step explanation: i just pressed get help in khan academy ha ha,
Find the measure of angle b.
Which is the answer?
A.92
B.111
C.69
D.88
Can you help me, I would appreciate it very much
Answers
Answer:
88
Step-by-step explanation:
Angles b and 88 are corresponding angles,
Corresponding angles are equal.
So,
b = 88
There are 20 red balls, 20 blue balls, 10 green
balls, and 25 yellow balls. Her first selection is red and her second selection is green,
what is the probability that her third selection is blue given that she did not replace
the first two balls? Answer as a fraction in simplest form.
Answers
So 20/75+10/75=30/75 so she is left with blue and yellow 20+25=45 so 45/75 simplified equals 3/5
Asif and Ben share $2100 in the ratio Asif: Ben = 3:7.
Work out how much Asif receives.
$2100
Answers
Answer:
$630 for Asif
Step-by-step explanation:
Asif gets 3/10ths
So
2100 x 3/10 = $630 for Asif
Write the decimal -1.2-- as a mixed number
Answers
Answer: 1 1/5
Step-by-step explanation:
I need help with this
Answers
Answer:
10 units²
Step-by-step explanation:
In the second photo.
PLEASE HELP, DUE AT 11:59PM PST
All responses are appreciated
if f(x) = 9. Find x
Answers
Answer:
x = 9
Step-by-step explanation:
Not sure if you posted the right thing, but if f(x)=9, then x simply is 9.
I need help with this problem please
Answers
Answer:
9.32
10.116
Step-by-step explanation:
each corner is a right corner so were going to subtract 58 from 90 because all right corners are 90 degrees
90-58=32 answer A 32
after that we know that all triangles have to equal 180 so now we subtract
180-58=122 122-58=64
we subtract 58 two times because we have 2 of the same angles
next we know that the smaller angle is 32 so now we subtract again
180-32=148 148-32=116 so y is 116
WILL MARK BRAINLIEST HELP ASAP ASAP
Answer choices are
9
10
11
12
13
Answers
Answer:
none of the answer choices work sorry.
Step-by-step explanation:
An investment of $8,000.00 with Barnes Bank earns a 3.88% APR compounded monthly.
a. Write a function A that determines the investment's value in dollars) in terms of the number of years since the investment was made. Be
sure to use function notation appropriately.
Preview
b. Determine the investment's value after 9 years.
Preview
c. Determine the investment's value after 16 years.
Preview
Answers
Answer:
C.
Step-by-step explanation:
Jika harga sebuah martil adalah 10 kali harga paku, dan harga satu lusin paku adalah Rp 1.200,-, berapa harga martil tersebut?
Answers
Menjawab:
1000
Penjelasan langkah demi langkah:
Mengingat bahwa :
Harga palu 10 potong harga paku;
Harga selusin paku = 1200
1 lusin = 12
Jadi harga paku adalah:
1200/12
= 100
Makanya, harga paku = 100
Jadi, harga palu adalah:
10 kali lipat, harga paku
10 * 100 = 1000
pls hurry!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
You didn't post any questions
I AM GIVING OUT BRAINILEST
Answers
Answer:false, true,true, false
Step-by-step explanation:
this dot plot is symmetric in the data set has no extreme values what is the best measure of center for this dot plot
Answers
Answer:
i would say its D.
Step-by-step explanation:
Will mark brainliest ❤️
Answers
Answer:
2 to the power of 6 x 3 to the power of 3
Step-by-step explanation:
Answer:
b. 2 to the power 6 . 3 cubed
c. 12 cubed
Can someone help me with this
Answers
Answer:
y= 3x+ 1
Step-by-step explanation:
-3x + 2y =2
+3x +3x
---------------------
2y = 3x +2
----- --------
2 2
y = 3x + 1
Q1. Three types of coffee beans, A, B and C, are blended in the ratio 3: 5:7 to make a bag of coffee
powder. Given that the bag contains 45 kg of coffee powder, find the mass coffee beans A in the
mixture?
Answers
Answer:
Mass of coffee A beans = 9 kg
Step-by-step explanation:
Coffee A = 3
Coffee B = 5
Coffee C = 7
A : B : C = 3 : 5 : 7
Total ratio = 15
Total mass of the bag = 45 kg
find the mass coffee beans A in the mixture?
Mass of coffee A beans = ratio of coffee A / total ratio × total mass of the bag
= 3/15 × 45
= 1/5 × 45
= (1 * 45)/5
= 45/5
= 9 kg
Mass of coffee A beans = 9 kg
Mass of coffee B beans = ratio of coffee B / total ratio × total mass of the bag
= 5/15 × 45
= 1/3 × 45
= 45/3
= 15 kg
Mass of coffee C beans = ratio of coffee C / total ratio × total mass of the bag
= 7/15 × 45
= (7*45)/15
= 315/15
= 21 kg
PLEASE HELP order the sides of EBD from longest to shortest (I’ll give brainlest btw)
Answers
Jamila needs to spin a number greater than 4 to win. On the game spinner below, what is the probability of her winning?
Answers
Answer:
its a 25% chance that she will get 4
Step-by-step explanation:
Of 118 randomly selected adults, 29% said that they had high blood pressure. Find the 95% confidence interval for the proportion of all adults that have high blood pressure. State the interval and write a sentence explaining the information in the interval in the context of the problem.
Answers
Answer:
(0.208 ; 0.372)
Step-by-step explanation:
phat = 29% = 0.29
Sample size, n = 118
The confidence interval :
phat ± margin of error
Margin of Error = Zcritical * √phat(1 -phat) / n
Zcritical at 95% = 1.96
Margin of Error = 1.96 * √0.29(0.71) / 118
Margin of error = 1.96 * 0.0417721
Margin of Error = 0.0818734
Confidence interval :
Lower boundary : 0.29 - 0.0818734 = 0.208
Upper boundary = 0.29 + 0.0818734 = 0.372
(0.208 ; 0.372)
We can be 95% confident that the proportion of adults with high blood pressure is lies within the interval (0.208 ; 0.372)
What is the measure of the angle labeled n?
Answers
Answer:
B. 74°
Step-by-step explanation:
n and 106° are same-side interior angles.
Same side interior angles are also supplementary angles, meaning they add to 180°.
n+106=180
n=74°