Answer:
n = 24
Step-by-step explanation:
first put the equation into fraction form and cross multiply:
12/18 = n/36
12(36) = n(18)
432 = 18n
now isolate the variable:
432/18 = 18n/18
24 = n
why are fifteenths show in the example model?
Answer: Fifteenths are shown in the example model because the denominator of your answer is also 15.
Step-by-step explanation:
Like what I'm trying to say is is that this is common sense and also I don't know why your math book would want you to solve this but, since the answer is 6/15 then it wouldn't make sense for your answer table to have 16 spaces instead of 15. Like common sense, although I can get why you're confused.
PROPROTIONS
In a bag of marbles, the ratio of the number of blue to red to white is 13:2:6. If the number of blue marbles minus the number of white marbles is 21, how many red marbles are there?
Answer: There are 6 red marbles
Step-by-step explanation:
13 - 6 = 7
21/7 = 3
3 x 2 = 6
To check the answer:
13 x 3 = 39
6 x 3 = 18
39 - 18 = 21
Answer:
6
Step-by-step explanation:
Blue = 13x
Red = 2x
White = 6x
Now, they have given one more info:
Blue - White = 21
So, 13x - 6x = 21
7x = 21
x = 3
∴ Now, Blue = 13*3 = 39
Red = 2*3 = 6
White = 6*3 = 18
Total = 63
Hope it helped. Pls mark me the BRAINLIEST!
What is an algebraic rule y’all didn’t teach me this stuff
Need answers asap, when answer pls put number next to it, will give brainly if theyre all right.
Answer:
The third option.
Step-by-step explanation
The third one is a reflection of the original across the Y-Axis.
The triangle will remain congruent.
Answer: They each have a right angle, so that makes them similar in a way.
Step-by-step explanation:
Need answer asap, when answer pls put number next to it, will give brainly if they're all right, tysm
Which choice is equivalent to the expression below?
9(8x + 5) + 7
Group of answer choices
17x + 52
72x + 12
17x + 12
72x + 52
Thanks!
Answer:
9(8x + 5) + 7 = 72x + 45 + 7 = 72x + 52
option 4) 72x + 52 is correct
Classify the pair of angles 55 35
Answer:
A supplementary adds up to 180 degrees. It would be complementary because it adds up to 90 degrees.
Step-by-step explanation:
Answer:
A supplementary adds up to 180 degrees. It would be complementary because it adds up to 90 degrees.
Sorry had to do this for points ^ - ^
Rosie had 10 boxes of drawing pins.
She counted the number of drawing pins in each box.
The table gives information about her results.
Work out the mean number of drawing pins in a box.
Answer:
(29(2) + 30(5) + 31(2) + 32(1))/10 =
(58 + 150 + 62 + 32)/10 =
302/10 = 30.2 drawing pins per box
Can anyone make an explaination?
Answer:
It is point c
Step-by-step explanation:
ok so the coordinates are always (x,y) so therefore if X is 0 then it stays in the middle of the graph and doesn't go anywhere. since Y is -3, y always goes down or up. so if it goes down then it is negative. up is always positive. same with x. X is always horizontal so if it moves right, it is positive and left (backwards) is negative. hope this helps and isn't confusing. *Also, since it's -3, then it goes down negative 3 units. *
Answer:
C
Step-by-step explanation:
In the coordinate (x,y), x refers to the place of point above the horizontal line while y represents the place of point in the side to its vertical lines.
Here, x is 0, that means it is lying on y line and y is -3, that means it's lying in 3rd quadrant. So, point C matches them completely. That's why the correct answer is C.
Hope it helped. Pls mark me the BRAINLIEST! Any questions ask in comments :)
A construction crew has just finished building a road. The crew worked for days. If they built kilometers of road each day, find the total length of road they built.
____ kilometers
Answer:
3.602 km.
Hope this helps!
Answer: If t would be the number of days, d the distance they built and x the total they built, then the relationship would be x = td.
Step-by-step explanation: If they build a certain amount of road every day, then in two days, they're gonna build twice that much road, in three days triple, etcetera. Therefore you just need to multiply the amount of days they work with the amount of road they build in a day.
Write an equation to represent "eighteen more than 11 divided into a number n is 20." (use / for division)
Answer:11 divided by 20 is 0.55
Step-by-step explanation:
USE UR THINKING. or let me tell u a secret u can use ur calculator and see the answer and plus I don't know what she is talking about so I just think it's 11 divided by 20 which is 0.55.
SO I HOPE I DID THE WRITE THING BYEEE!!!!
Answer: 18+ 11/n=20
Step-by-step explanation:
I
plsssssssssssssss heeeeeeeeelllllllllllllllllppppppppppppp meeeeeeeeeeee
Answer:
stella
Step-by-step explanation:
24 feet convert to inches is 288
then you add that to 6 inches
which gets you 294.
What is the price of a pair of jeans that was $52.41 and 6% tax was added to it? *Remember, when dealing with money, you need to have only 2 decimal places. Please round money to the nearest hundredths place*
The sales tax on a $20,833 car is $1375. What is the sales tax rate?
What is the discount and sale price of an $84 item that has been discounted at 8.33%?
A fancy dinner for your family cost $77.48 and a 15% tip was added on top of that, how much was your total bill?
What is the simple interest on $3,707 borrowed for 30 months at 12%?
Show all your work
Answer:
1. $55.65
2. 6.6%
3 $75.77
4. 89.10
5. 13,345.2
Step-by-step explanation:
PLEASE ANSWER ASAPPP
What is the solution for the system of linear equations shown in the graph? a coordinate grid with one line that passes through the points 0 comma 1 and 1 comma 2 and another line that passes through the points 0 comma 0 and 1 comma negative 3
Answer:
(-3/2, 1/2)
Step-by-step explanation:
Answer:
(-3/2, 1/2)
Step-by-step explanation:
Elizabeth is thinking of a two-digit number. When the tens digit is subtracted from the ones digit, the difference is 2. One-fifth of the number is 1 less than the sun of the digits. What is the number?
Answer:
35
Step-by-step explanation:
The answer is 35 because 5-3=2. And 5+3=8. 1/5 of 35 is 7 which is one digit less than 8.
:)
I hope this helps!
Answer:
35
Step-by-step explanation:
Let's start by placing 35 in the spot for x. When the tens digit (3) is subtracted from the ones digit (5), the difference is two. Let's see if it works. 5-3=2. So far, we're good! Now one-fifth of 35 is 7, which, is 1 less than the sum of both 5 and 3 which is 8. 8-1=7.
6 more than half a number c is 8
Answer: 6+1/2c=8
Step-by-step explanation:
May I please have brainliest
Answer:4
Step-by-step explanation:
6+4/2=8
Write an equation to represent "j divided by 9 is 5." (use / for division)
label the number line below and use it to show 3 x 3/5. 3 x 3/5 =
Answer:
3 x 3/5 = 9/5 or 1 4/5
Step-by-step explanation:
First convert 3 to a fraction
3/1 x 3/5
Then multiply the denomenators and the numerators
3 x 3 = 9
1 x 5 = 5
9/5 is the answer
complete the values
so basically use the numbers there as a replacement for X in each equation shown at the top of the table please do all and do it like this
-3: [answer for (3x) * 6] ; [answer for 18x]
0: [answer for (3x) * 6] ; [answer for 18x]
2: [answer for (3x) * 6] ; [answer for 18x]
please and thank you also if you dont know, the questions/table is in the
I M A G E
hope this helps, it’s kinda messy
QUICK ASAP NOW PLEASEEEEE
so basically use the numbers there as a replacement for X in each equation shown at the top of the table please do all and do it like this
4: [answer for (3x) * 6] ; [answer for 18x]
0: [answer for (3x) * 6] ; [answer for 18x]
-2: [answer for (3x) * 6] ; [answer for 18x]
please and thank you also if you dont know, the questions/table is in the
I M A G E
I think it’s the same one, lol I don’t know
Evaluate 2a + 4b
if a = 10 and b = 6
Group of answer choices
4
44
24
20
Thanks!
Old Value: 5
New Value: 16.1
222% increase
Old Value: 40
New Value: 57.6
44% increase
Old Value: 60
New Value: 63.6
6% increase
Old Value: 110
New Value: 13.2
88% decrease
You bought some jeans for $55. Today they were on sale for $49.50. What was the percent decrease in price?
10% decrease
Explain how you these answers are right
Answer:
Step-by-step explanation:
Profit % = [tex]\frac{New Value - Old Value}{Old value}[/tex]x 100
Loss % = [tex]\frac{Old Value-NewValue}{Old Value}[/tex]
Profit % = [tex]\frac{16.1-5}{5}[/tex] × 100
= [tex]\frac{11.1}{5}[/tex] x 100
= 11.1 x 20
= 222% increase
∴ Hence, proved that the answer is correct.
Profit % = [tex]\frac{57.6-40}{40}[/tex]×100
= 44% increase
∴ Hence, proved that the answer is correct.
Profit % = [tex]\frac{63.6-60}{60}[/tex]x 100
= 6% increase
∴ Hence, proved that the answer is correct.
Loss % = [tex]\frac{110-13.2}{110}[/tex]x 100
= 88% decrease
∴ Hence, proved that the answer is correct.
Loss % = [tex]\frac{55-49.5}{55}[/tex]x 100
= 10% decrease
∴ Hence, proved that the answer is correct.
Hope it helped. Pls mark me the BRAINLIEST! For all the writing and you understanding :)
Answer:
Step-by-step explanation:
Old Value: 5
New Value: 16.1
16.1-5=11.1
11.1 divided by 5= 2.22
2.22/1 x 100=222%
222% increase
Old Value: 40
New Value: 57.6
57.6-40=17.6
17.6 divided by 40= 0.44
0.44/1 x 100= 44%
44% increase
Old Value: 60
New Value: 63.6
63.6-60=3.6
3.6 divided by 60= 0.06
0.06/1 x 100= 6%
6% increase
Old Value: 110
New Value: 13.2
13.2-110= -96.8
-96.8 divided by 110= -0.88
-0.88/1 x 100= 88%
88% decrease
You bought some jeans for $55. Today they were on sale for $49.50. What was the percent decrease in price?
49.50-55= -5.5 -5.5 divided by 55= -0.1 -0.1/1 x 100=10% 10% decrease
solve inequality and please show step by step
Answer:
Step-by-step explanation:
x ≥ 13
x ∈ [ 13 , ∞ )
2(3) I NEEEEED HELPLPLPLPLP
Answer:6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
2(3) can also be written as 2 x 3 which equals 6
2(3) means you are adding 2, 3 times.
2 + 2 +2 = 6
11. Sanjay read 56 pages of his book this weekend. This is 35% of the pages in the book. How many pages are in Sanjay’s book?
Answer:
The book includes 160 pages
Step-by-step explanation:
56 ÷ 0.35 = 160
Adrien has 4 liters of milk. He drinks y liters each day.
a) If Adrien has x liters of milk left after one week, express x in terms of y.
b) State the independent and dependent variables in the equation.
The requried solutions are as follows,
(a) Equation x in terms of y is given as x = 4 - 7y.
(b) In the equation x is the dependent variable and y is the independent variable.
The equation model is defined as the model of the given situation in the form of an equation using variables and constants.
Here
Adrien has 4 liters of milk. He drinks y liters each day.
Adrien has x liters of milk left after one week
So
x = 4 - 7y
In the above equation model, it is clear that x changes as y changes, although x is the dependent variable and y is the independent variable.
Learn more about models here:
https://brainly.com/question/22591166
#SPJ1
What is the value of a + bc when a = 7, b = 4, and c = 1/2
Thanks so much!
Step-by-step explanation:
is this helpful. select as brainlist
HELP!!!!!!
Determine if the table shows a proportional relationship.
x 36.5 23.2 63.3
y 18.25 11.6 21.1
Group of answer choices
a. Yes, it is proportional because the ratios for y over x are all equivalent to one-half.
b. Yes, it is proportional because the ratios for y over x are all equivalent to one-third.
c. No, it is not proportional because 18.25 over 36.5 is not equal to 23.2 over 11.6.
d. No, it is not proportional because 18.25 over 36.5 is not equal to 21.1 over 63.3
Answer:
Because 18.25/36.5 and 21.1/63.3, the numbers in the table do not represent a proportionate connection. First set of data: y/x = 18.25/36.5 = 0.5
Values for the second pair are: y/x = 11.6/23.2 = 0.5
Values for the third pair are: y/x = 21.1/63.3 = 0.3
Because the value of y/x varies among the table's values, the table does not depict a proportionate connection. A value table must have an identical ratio of y/x between each pair of values for a proportional relationship to be seen. K, or the proportionality constant, is the constant.
Because 18.25 over 36.5 is not equivalent to 21.1 over 63.3, we may conclude that: D. No, does not demonstrate a proportionate connection.
Step-by-step explanation:
And give a reason why?
Answer:
Step-by-step explanation: [tex]2x + 8 \geq 12\\2x + 8 -8 \geq 12 -8\\2x/2 \geq \fra 4/2\\x \geq 2[/tex]
I don't know if it's correct
surface area of cuboid
Answer:
Volume equals 60
Step-by-step explanation:
volume = (width)(height)(length)
volume= (2.5)(4)(6)
volume= 60
The amount of glass used is equivalent to the surface area of the glass surfaces.
As the problem is specifying the top of the aquarium is open, we'll assume that it is not included for the surface area calculations.
[tex]A=2 (2.5 \times 4) +2(6\times4)+(6\times2.5)[/tex]
The first term represents the area of two 2.4 x 4 faces of the aquarium. The second term is the area for the two 6 x 4 faces. The last term is for the 6 x 2.5 base of the aquarium, and it is not multiplied by 2 as we are not including the top of the aquarium.
[tex]=2 \times 10 + 2\times24 + 15[/tex]
[tex]=83 \text{ ft}^2[/tex]
The aquarium has a surface area of 83 square feet. Hence, 83 square feet of glass was used to build the tank.
Let me know if you have any questions, thanks!