If 5/x = 15/x+20, what is the value of x/5?
Answer:
c) 2
Step-by-step explanation:
here you can use cross multiplication. that's where you turn the fraction into an equation. ( there's videos about it, I'm not very good at explaining )
so you can turn
[tex]\frac{5}{x} = \frac{15}{x + 20}[/tex]
into
5(x + 20) = 15x
5x + 100 = 15x
subtract 5x from both sides
100 = 10x
x = 10.
the value of x/5 would be 2, since 10/5 is 2.
Since x/5 is the reciprocal of 5/x, we know that we can flip the fraction on the right hand side will be flipped.
Thus, x/5 = (x + 20)/15
Now we cross multiply, 15x = 5(x + 20)
Simplify: 15x = 5x + 100
Subtract 5x from each side: 10x = 100
Divide 10: x = 10
Now plug 10 back into the right hand side: (10 + 20)/15
So, the answer is 2.
X-5=20 show work pleaseeeeeee
Answer:
x-5=20
x=20+5 (When bringing -5 to the other side of the equal, it changes to +5)
x=25
Real quick question. need help plz
graph the solution to the inequality on the number line 3b + 17 _< 4b +23 + 2b
Answer:
b_>-2 so the circle is going to be on top of -2 and it is going to be closed, going to the right
Raphael takes 15 pages of notes during 6 hours of math class. Then, he takes 35 pages of notes during 14 hours of math class. How many pages of notes would Raphael expect to take during 3 hours of math class?
Answer:
7 and 1/2 or 15/2 (they are the same number just one is 15/2 is put into fraction form)
Step-by-step explanation:
Because 3 hours is half of 6 hours so 15x1/2=7 1/2 or 15/2
Hope this helps, pls consider giving a brainliest, aand have a good day
Convert 65.000.000 to scientific notation.
Answer:
6.5 x 10^4
Step-by-step explanation:
Answer:0*10^0
Step-by-step explanation:
Which of the methods can you use to solve −2/3 c=16
Answer: simplify
Step-by-step explanation:
Answer:
Divide each side by -2/3
Step-by-step explanation:
-2/3 is being multiplied by c. So we have to do the inverse of multiplication which is division.
Alicia bought two slices of pizza and a bottle of juice for $4.95. The juice was $1.65. How much is one slice of pizza?
Subtract the price of the juice from the total then divide the remaining amount by 2:
4.95 - 1.65 = 3.30
3.30 /2 = 1.65 per slice.
Jennifer added the product 125 and 58 to the product of 357 and 42 what is the sum?
Answer:
22244
Step-by-step explanation:
(125*58)+(357*42)=22244
After making a deposit,puja had $264 in her savings account.She noticed that if she noticed that if she added $26 to the amount originally in the account and doubled the sum,she would get the new amount.How much did she originally have in the account.
Answer:
Let the original deposit be
x
Add $26 to original deposit
→
x
+
26
And doubled the sum
→
2
(
x
+
26
)
You get the new amount
→
2
(
x
+
26
)
=
264
Multiplying out the bracket
2
x
+
52
=
264
Subtract 52 from both sides
2
x
=
264
−
52
2
x
=
212
Divide throughout by 2
x
=
106
So the original amount was $106.00
Complete the two column proof.
Answer:
not sure about 2 and 5 but 4 is definition of congruency
if there are 10080 minutes in a week, how many seconds are in a month
OMG FREE BRAINLIESTOMGGGG!!!AHHH
Answer:
thank yoy so much for these free points, and I hope you have the best day because you deserve to have a really good day
Step-by-step explanation:
Please mark me as brainliest!
Answer:
awwww tyyy!! that was rlly kind of you!! :3 have a nice day <3 (also sorry if I'm too late XD)
Step-by-step explanation:
tyyy again!!
What is the slope of a line perpendicular to Line AB given A (6,2) and B (-3,2)
Answer:
slope is undefined
Step-by-step explanation:
Calculate the slope m of AB using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = A(6, 2) and (x₂, y₂ ) = B(- 3, 2)
m = [tex]\frac{2-2}{-3-6}[/tex] = [tex]\frac{0}{-9}[/tex] = 0
A line with a slope of zero is a horizontal line, parallel to the x- axis.
Thus a line perpendicular to AB is a vertical line parallel to the y- axis.
The slope of a vertical line is undefined
A music store is receiving a shipment of Ipads. Each box comes with 12 white, 12 black and 24 grey
Ipads. They already have 23 white, 16 black and 22 grey Ipads. If the store is receiving 5 boxes, how
many of each color Ipad will they have?
Answer:
142 Grey, 83 white, 76 black
Step-by-step explanation:
If you were to take 5 boxes and put 24,12,12 in each, then multiply each number by 5 you wpuld get 120 Grey, 60 white and 76 black. Then you would add what they already have 120 Grey + 22 Grey is 142 grey, 60 white + 23 white is 83 white, and 60 black + 16 black is 76 black.
A test is worth 50 points. Multiple-choice questions are worth 1 point, and
short-answer questions are worth 3 points. If the test has 20 questions, how
many multiple-choice questions are there?
A. m + s = 50
B. m + 2s = 20
C. m.s= 20
D. m + s = 20
Answer:
d) m + s = 20
m = 5
Step-by-step explanation:
m + 3s = 50
m + s = 20
m + 3(20-m) = 50
m + 60 - 3m = 50
60 - 2m = 50
60 = 50 + 2m
60 - 50 = 2m
10 = 2m
5 = m
what is the area of tile 10 in.6 in.and 8 in
Answer:
480
Step-by-step explanation:
u multiply 10x6x8=480
Help!! Willmark brainliest!Can you guys please answer these 2 questions???
Answer:
1. A, 2 meters per second
2. F, 15
Allen's miniature train travels at a rate of 20 meters in 2 minutes. At this rate, how far will the train travel in 10 minutes?
Answer: 100
Step-by-step explanation:
20 - 2
x - 10
Cross multiply 20 * 10.
20 * 10 = 200
Then divide 200 by 2.
200 / 2 = 100
identify the sequence 18,13,8,3,-2 PLZ HELPPPPP
The common difference between each term is -5. The nth term of the sequence as follows: aₙ = 18 - 5(n-1)
The given sequence is 18, 13, 8, 3, -2.
To identify the pattern in the sequence, we can observe that each term is decreasing by 5. Starting from 18, we subtract 5 to get the next term, and so on. The common difference between each term is -5.
Using this pattern, we can continue the sequence as follows:
-2 - 5 = -7
-7 - 5 = -12
-12 - 5 = -17
-17 - 5 = -22
The extended sequence would be -2, -7, -12, -17, -22.
In terms of the general formula, we can represent the nth term of the sequence as follows:
aₙ = 18 - 5(n-1)
For more such questions on sequence
https://brainly.com/question/7882626
#SPJ8
You have $1.55 worth of dimes and nickels in a jar. There are 23 coins in the jar. How many dimes do you have? How many nickels do you have
i believe the answer is 35 dimes and 65 nickels (sorry if i’m wrong lol)
x + y = -7
-x+ 4y = 17
X=
y =
Answer:
x= -9, y= 2
Step-by-step explanation:
5y=10
y=2
x+2=-7
x=-9
Answer:
x=-9y=2Step-by-step explanation:
[tex]x + y = - 7[/tex]
[tex] - x + 4y = 17[/tex]
[tex]y = - 7 - x[/tex]
[tex]x = 4y - 17[/tex]
[tex]y = - 7 - 4y + 17[/tex]
[tex]5y = 10 \\ y = 2[/tex]
[tex]x = 4y - 17 = 4 \times 2 - 17 = 8 - 17 = -9 \\ x = -9[/tex]
Simplify:
3(8) ° . (3) -2
substitute the length of the sides (8 in, 15 in m)
into the Pythagorean theorem. Then, find the length of the missing side m
(Please with step by step answer)
Answer:
17i in
Step-by-step explanation:
a² + b² = c²
8² + 15² = c²
64 + 225 = 289
c² = 289
c = [tex]\sqrt{289} \\[/tex]
c = 17
tell me some irrational numbers
Answer:
square root of 2, pi, square root of 5, square root of 10, square root of 3, square root of 15
Step-by-step explanation:
Answer:
√8 √1.6 -√11 π √2/5
Step-by-step explanation:
HELP ME PLEADE I NEEDDDD HELPP
Step-by-step explanation:
I hope this helps, happy learning!!
True or False? In reference to different sampling methods, systematic sampling includes the steps: list the members of the population; use simple random sampling to select a starting point in the population; let k = (number of individuals in the population)/(number of individuals needed in the sample); choose every kth individual in the list starting with the one that was randomly selected.
Answer:
True
Step-by-step explanation:
In the simple random sampling every individual in the population has an equal chance to be selected in the sample. Systematic sampling is a probability sampling in which selection of elements is made from order frame. These samples are selected based on intervals of the population.
Which expression is equivalent to 2(a+3) when a=3?
O 2(3)
05(3)
O 2(3)+3
O 2(3)+6
Answer:
The answer is 2(3)+6
Step-by-step explanation:
The perenthesis means multiplication so you would first do 2 times three which is 6 and then 6+6=12 and the first expresion is 2(a+3) a=3 to solve that you would do whats in the perenthesis 3+3 which equals 6 and then the 6 in the perenthesis means mulitplication. so then you would do 2 times 6 and get 12. so the 3rd one is the answer.
Quiz Simplifying expressions
Question 1: 3x + 7 - 5x + 9
Answer:
8x+161
Step-by-step explanation:
Please answer correctly !!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!
Answer:
c
Step-by-step explanation:
97 degrees. Any angle between 90 and 180 degrees is classified as obtuse
Answer:
If the angle right before cde is the actual mesuarment then your answer is 78 if thats not the measurment then your answer is 97
Step-by-step explanation:
