Answer:
Tadeo: 12 hoursDylan: 2 hoursStep-by-step explanation:
We can let d represent the number of hours that Dylan volunteered. Then Tadeo volunteered for 6d hours, and their total hours were ...
d +6d = 14
7d = 14 . . . . . . collect terms
d = 2 . . . . . . . divide by the coefficient of d
6d = 6(2) = 12
Tadeo volunteered 12 hours; Dylan volunteered 2 hours.
Could you please help me with number 6 thank you sm !!
Answer:
A) a = 4, b = 3Step-by-step explanation:
#6Given equation:
4/(x - 3) + 2/(x - 2) = 2Multiply all terms by (x - 3)(x - 2):
4(x - 2) + 2(x - 3) = 2(x - 3)(x - 2)2(x - 2) + (x - 3) = (x - 3)(x - 2)2x - 4 + x - 3 = x² - 5x + 6x² - 5x - 3x + 6 + 7 = 0x² - 8x + 13 = 0x = (8 ± √(8² - 4*13))/2 = (8 ± √12)/2 = (8 ± 2√3)/2 = 4 ± √3Compare this to the given form to get:
a = 4, b = 3Correct choice is A
On solving
x=4±√3
So
a=4 and b=3
Tim and sue share a small pizza. Tim eats 2/3 of the pizza. sue eats half as much pf the pizza as time doe. what fraction of the pizza does sue eat
Answer:
Sue eats 1/3 of the whole pizza
Step-by-step explanation:
Answer:
2. Tommy's mom asked him to help her clean the house. His mom has asked him
to sweep his bedroom floor, the laundry room, and the kitchen. He estimates
that it is going to take him 10 minutes to sweep out each room. About how
many minutes will it take Tommy to help his mom
Answer:
it will take Tommy 30 minutes
Answer:
It'll take him 30 minutes.
Step-by-step explanation:
He estimates that it'll take 10 minutes for each room. His mom asked him to sweep 3 rooms. If you take 10 and multiply it by 3, you get 30.
what is x-5(x-1)=x-(2x-3)
Answer:X=2/3
Step-by-step explanation:
olutioniaisisisis
What is the greatest common factor of 36, 18, and 6?
Answer:
GCF = 6
Step-by-step explanation:
6 is the greatest common factor of these three terms.
Answer:
69
Step-by-step explanation:
The common factor is 69 because they all add up to this sacred number
W
List the following words in order from smallest to
largest
A. Gene, DNA, Chromosome, Nucleus
B. Nucleus, DNA, Chromosome, Gene
C. DNA, Gene, Chromosome, Nucleus
D. Chromosome, Cell, Nucleus, Gene
List the following words in order from smallest to
largest
C. DNA, Gene, Chromosome, Nucleus
Answer:
A. Gene, DNA, Chromosome, Nucleus
Step-by-step explanation:
Hope this helps. Please give Brainest if it did. Good luck
Which triangle is a translation of triangle X?
C triangle A
O triangle B
• triangle C
O triangle D
Answer:Triangle B
Step-by-step explanation:
It is the only one not dilated or rotated, but it was simply moved, which is the definition of translation.
Mr. Adeb takes out an $8,000 personal loan to restore his antique car. The bank loans him the money at 4.5% simple interest for 4 years.
a. How much will Mr. Adeb pay in interest? _
b. What is the total cost of the restoration including the interest? _
Mr. Adeb takes out an $8,000 personal loan to restore his antique car. The bank loans him the money at 4.5% simple interest for 4 years.
a. How much will Mr. Adeb pay in interest?
b. What is the total cost of the restoration including the interest?
Answer:
A) $1440
B) $9440
Step-by-step explanation:
A) 4.5% x $8000 = $360 x 4 years = $1440
B) $1440 + $8000 = $9440
Can anyone answer these?
Answer:
4) 3 for the numerator. 9 for the denominator
5) 6 for the first blank square and 48 for the second blank.
6) 2 for the denominator. 6 for the numerator. 30 for the second numerator.
Step-by-step explanation:
sorry but those are the only ones i know
Hope this helps!
find the surface area of a cylinder with a radius of 5 and a height of 8. use terms of pi
Answer:
the answer for your question is 80pi
There are 8 books lettered A-H on
the shelf. If Scott randomly chose
two books, what is the probability
that he chose books A and B?
Therefore, the probability that Scott chose books A and B is 1/28.
What is probability?Probability is a measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 means that the event will not occur and 1 means that the event is certain to occur. The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes. Probability is used in many areas of mathematics, science, economics, and everyday life to help make predictions, decisions, and inferences.
Here,
The total number of ways Scott can choose 2 books out of 8 books is given by the combination formula:
C(8,2) = 8! / (2! * 6!) = 28
This means there are 28 possible pairs of books he could choose.
The probability that he chose books A and B is 1 out of 28 because there is only 1 way to choose books A and B out of the 28 possible pairs:
P(A and B) = 1/28
To know more about probability,
https://brainly.com/question/30034780
#SPJ1
help me with proving lines parallel please
Answer:
True. A , B are parallel lines.
Step-by-step explanation:
3 and 6 are co interior angles. If co interior angles are congruent, then the line are parallel
If a local coffee shop serves 12 customers in 36 minutes, how fast does it serve its customers?
Graph each function. Identify the domain and range. Brainlest answer.
Answer:
see below
Step-by-step explanation:
find the unknown sizes of an angles of the following polygons.
Answer:
A is an irregular pentagon - total angle is 540. So x is 100
(540 - 440=100)
B. 3a + 345 = 540
- 345 both sides
3a=195
÷3
a = 65
2a = 130 (65x2)
C. X = 120 (angles on straight lines adds to 180)
3y + 300 = 540
- 300
3y = 240
÷3
Y= 80
x 2
2Y = 160
Hope this helps!
mZQPS = 88
mZRPS = 5x + 34°
mZQPR = 8x + 15 °
Find mZRPS:
Answer:
49
Step-by-step explanation:
First, you need to solve for x.
88 = 5x + 34 + 8x 15
88 = 13x + 49
88 - 49 = 13x
39 = 13x
39/13 = x
3 = x
Now substitute 3 in place of x to find rps
rps = 5x+34
rps = 5*3 + 34
rps = 15 + 34
rps = 49
Find an expression for y in terms of w.
Answer:
x 6 8 11 13 18
y 15 17 20
Step-by-step explanation:
use your equations to complete the table
Answer:
y = w(7x-12)/(6-21w)
Step-by-step explanation:
See the attached image. I was expecting a more elegant solution, so please look it over carefully. Perhaps there is a way to simplify it, but I don't see an easy method.
Plss someone help and explain if you can Plss help
above is the answer. typing is not getting allowed dunno why
Answer:
Step-by-step explanation:
44) I’ll try to explained detailed as possible.
So first of all we have: 180-120=60 => this is the value of angle(BCA)
=> we know that a triangle has 180 degree in total =>
Now we will have to add all angles,their sum will be equal to 180.
=> (2x+28)+(3x-13)+60=180
2x+28+3x-13=180-60
5x+15=120
5x=105
x=105/5
x=21
=> m(BAC) = 2x+28=29*2+28=58+28=86 degree.
miguel Has a figure filled with 890 cube without any gaps or overlaps each cube has a side length of one unit which statement must be true about Miguel's figure?
A) it has a volume of 890 cubic units
B) it has an area of 890 square units.
C) it has a length of 890 units
D) it has a width of 890 units
Answer:
I believe it is C
HOPE IT HELPS, BE SAFE :3
I need help with my math work
Answer:
27
Step-by-step explanation:
162/30=5.4
5.4*5=27
Answer:
the answer is 27
Step-by-step explanation:
Your teacher is giving you a test worth 100 points containing 40 questions. There are two-point questions (x) and four-point questions (y). How many of each type of question are on the test?
Answer:
There is 30 2 pt questions and 10 4 pt questions
Step-by-step explanation:
x is number of two-point questions
y is number of four-point questions
There is a total of 100 points.
There is a total of 40 questions.
Now, we solve by substitution
Plug 30 back in to solve for y
Help!!!! I have rsm tomowrrow. can u also show me how to do it? thanks!
Check the picture below.
Which is the graph of y=3/4x-3?
Answer:
Graph A
Step-by-step explanation:
The y-intercept is -3, which is the y-value when the graph hits the y-axis.
Graph A and B both hit the y-intercept of -3.
The slope is 3/4, which means the line rises 3 units as it runs 4.
This time, only Graph A has the correct slope.
The correct answer is [tex]\boxed{\text{Graph A}}[/tex]
-Chetan K
Answer:
Graph A
Step-by-step explanation:
The formula is in the form y=mx+c, where m is the gradient and m is the y-intercept, this means that the y-intercept is (0,-3) which rules out Graph B.
To find the gradient we use [tex]\frac{rise}{run}[/tex], this means that the vertical value has to be 3 and the horizontal distance 4 and this rules out Graph C as its gradient is 3/2. That means that graph A matches the equation the best.
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS HELP ASAP THANKS
Answer:
B. 10
Step-by-step explanation:
This pair of triangles follows a scale factor. A scale factor is the factor that can get you an exact copy of a triangle, but with bigger or smaller side lengths. In this case, the scale factor is 2 (doing 12/6 on the left side is 2), and dividing that by 20 to get 10. Because we want the smaller triangle, we divide, not multiply. (you could also multiply by 1/2)
Need help clarifying if D if the right one
Answer:
yes d is the correct answer
Step-by-step explanation:
abby has let out 42 meters of kite string when she observed that her kite is directly above christiana. if abby is 8.5 meters from christina what is the angle of elevation of the kite
Answer:
78 degrees
Step-by-step explanation:
this is a situation where you have a right triangle and know the hypotenuse and adjacent side lengths, so you can use cos⁻¹
cos⁻¹(8.5/42) = 78.3 degrees
If given in the following expression, find the value of
(x^3 + y^3):(x^3-y^3)
If (x^2+y^2)/(x^2 -y^2)= 17 /8
Step-by-step explanation:
Given that:
{(x²+y²)/(x²-y²)} = 17/8
On applying cross multiplication then
since, (a/b) = (c/d) ⇛a(d) = b(c)
Where, x = x²+y², b = x²-y², c = 17 and d = 8
So,
⇛17(x²-y²) = 8(x²+y²)
Multiply the number outside of the brackets with variables in the brackets on both LHS and RHS.
⇛17x²-17y² = 8x²+8y²
⇛17x²-17y² - 8x²-8y² = 0
⇛17x²- 8x² - 17y² - 8y² = 0
⇛9x² - 25y² = 0
⇛9x² = 25y²
⇛9/25 = y²/x²
⇛25/9 = x²/y²
⇛x/y = √(25/9)
⇛x/y = √{(5*5)/(3*3)}
⇛x/y = 5/3
Therefore, x:y = 5:3
Let x = 5a and y = 3a
Now, (x³+y³):(x³-y³)
= {(x³+y³)/(x³-y³)} = [{(x+y)(x²-xy+y²)}/{(x-y)(x²+x-y+y²)}]
= [{(5a)³ + (3a)³}/{(5a)³ - (3a)³}]
= [{(5*5*5*a*a*a) + (3*3*3*a*a*a)}/{(5*5*5*a*a*a) - (3*3*3*a*a*a)}]
= {(125a³ + 27a³)/(125a³ - 27a²)}
= {(152a³)/(98a³)}
= 152/98
Write the obtained fraction in lowest form by cancelling method.
= {(152÷2)/(98÷2)}
= 76/49
Therefore, , (x³+y³):(x³-y³) = 76/49
Answer: Hence, the required value of (x³+y³):(x³-y³) is 76/49.
Please let me know if you have any other questions.
Answer:
76:49 or 49:76
Step-by-step explanation:
The second relation gives an expression for y in terms of x:
[tex]\dfrac{x^2+y^2}{x^2-y^2}=\dfrac{17}{8}\\\\8x^2+8y^2=17x^2-17y^2\qquad\text{cross multiply}\\\\25y^2=9x^2\qquad\text{add $(17y^2-8x^2)$}\\\\5y=\pm3x\qquad\text{take the square root}\\\\y=\pm\dfrac{3}{5}x\qquad\text{divide by 5}[/tex]
Substituting into the expression we want the value of, we can factor out x^3 to get ...
[tex](x^3+y^3):(x^3-y^3)=(1\pm(3/5)^3):(1\mp(3/5)^3)=(125\pm27):(125\mp27)\\\\=152:98\text{ or }98:152=\boxed{76:49\text{ or }49:76}\m[/tex]
_____
Additional comment
There is nothing in the given requirement that means x and y must have the same sign. If the signs are different, then the value of the expression is less than 1, rather than greater than 1.
I need this asap. Find the area of the following quadrilateral.
Answer:56
Step-by-step explanation:
i got it correct on my test
HELP PLEASE!!! CORRECT ANSWER GETS BRAINLIEST
Draw a model to help solve 5/6 + 1/4. Write your anserw as a mixed number
Answer:
Step-by-step explanation: