Find the number if 18 is taken away from 8 times of a number gives 30.
Answer:
Let the number be x.
8 times that number would be 8x, and taking away 18 from it 8x - 18. Knowing the result of doing this is 30, we can write the following equation:
8x - 18 = 30
And solve it. First we pass the -18 to the sight umming:
8x = 30 + 18
8x = 48
Then the 8 which is multiplying to the right dividig:
x = 48/8 = 6
Now we verify we have done it preporly:
8x - 18 = 30
8 * 6 - 18 = 30
48 - 18 = 30 TRUE
Answer:
x =6
Step-by-step explanation:
Translate into algebraic equation =
[tex]8(x)-18= 30\\= 8x-13=30[/tex]
Let's solve for x
[tex]\mathrm{Add\:}18\mathrm{\:to\:both\:sides}\\8x-18+18=30+18[/tex]
Simplify
[tex]8x=48[/tex]
Divide both sides by 8
[tex]\frac{8x}{8}=\frac{48}{8}[/tex]
Simplify
[tex]x =6[/tex]
Jack read 20 pages of a book in 60 minutes. How many pages can he read in 75 minutes at the same rate? Write a proportional equation. Please help me answer this equation!!
Answer:
25 pages
Step-by-step explanation:
Create a proportion:
[tex]\frac{pages}{minutes}[/tex] = [tex]\frac{20}{60}[/tex] = [tex]\frac{x}{75}[/tex]
Cross multiply and solve for x, the number of pages in 75 minutes:
60x = 1500
x = 25
So, he can read 25 pages in 75 minutes at the same rate
how do you figure out the mean absolute deviant
Mean Absolute Deviation
Think about what each word means.
Just remember to find the mean, then find the deviation, then absolute value, and finally the mean again.
Mean Absolute Deviation.
To find mean absolute deviation, think bacwards.
A small, test batch of lemonade used 1/4 cups of sugar added to 1 cup of water and 1/4 cup of lemon juice. After confirming it tasted good, a larger batch is going to be made with the same ratios using 10 cups of water. How much sugar should be added so that the large batch tastes the same as the test batch?
Answer:2 and a half cups of sugar
Step-by-step explanation:
1/4*10
Enter 52.16 in expanded form.
Answer:
50 + 2 + 0.1 + 0.06
Consider the line 9x+5y=6 What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?
Answer:The equation of the line is 9x-5y=9
5y=9x-9
y=9/5x-9/5
Comparing with y=mx+c we get slope m=9/5
Slope of a line parallel to this line=9/5
Slope of a line perpendicular to this line=-5/9
Step-by-step explanation:
NEEDS TO BE ANSWERED TODAY!!!!Order from least to greatest (turn them into decimals) a.) 104% b.)[tex]\sqrt{7}[/tex]c.) -[tex]\frac{3}{5}[/tex]d.)-1
Answer:
abcdefghijklmnopqrstuvwxyz
Answer:
104% ~1.04 b.)2.65 c.) -0.6 d.)-.01
Answer. -1, 3/-5, 104%, v7
HELLLLPPPP PLZZZZZ I WILL MARK BRAINLEIST
Answer:
Step-by-step explanation:
4.
distance=2436-(-1020)=2436+1020=3456 ft
5.
in two turns points=3-4=-1
in 6 turns=-1/2×6=-3 points
6.
-23+40=17
she had 17 dollars balance.
Answer:
5 -3
Step-by-step explanation:
Which of the following is another way to express the difference between -5 and 8?
-5 - (-8)
-5 + 8
8 - 5
-5 + (-8)
Which statement is true about the relationship between the amount of plant food remaining and the number of days? Can you help me with this problem
Answer: I think it's "This is not a function because only one amount of plant food remains each day"....let me know if I am wrong though I am not sure.
Now, ONLY look at the shortest 8 people (on the left, from Snooki 57 inches to Miley Cyrus 65 inches). Can you find the median height of these 8 people?
Answer: 60.875
Step-by-step explanation:
57+59+60+60+61+61+64+65= 487
then 487/8= 60.875
Answer:
60.5
Step-by-step explanation:
because in 8 options there is no middle instead you put 0 to 8 people, the middle of 1 to 8 is 4.5 then, there is the answer
URGENT!! I have been trying to ask this question for a while but I keep getting fake answers: Find an equation in standard form for a parabolic function that goes through the points (1,-12) (3,16) and has a stretch factor of 2
Answer:
Step-by-step explanation:
y=a(x-h)^2+k
-12=a(1-h)^2+k
16=a(3-h)^2+k
subtract
a(3-h)^2-a(1-h)^2=28
a[(3-h)^2-(1-h)^2]=28
a=2
2[(3-h)^2-(1-h)^2]=28
(3-h)^2-(1-h)^2=14
9+h^2-6h-(1+h^2-2h)=14
9+h^2-6h-1-h^2+2h=14
-4h+8=14
-4h=6
h=-3/2
16=2(3+3/2)^2+k
16=2×81/4+k
k=16-81/2=-49/2
so y=2(x+3/2)²-49/2
Answer: y=a(x-h)^2+k
-12=a(1-h)^2+k
16=a(3-h)^2+k
subtract
a(3-h)^2-a(1-h)^2=28
a[(3-h)^2-(1-h)^2]=28
a=2
2[(3-h)^2-(1-h)^2]=28
(3-h)^2-(1-h)^2=14
9+h^2-6h-(1+h^2-2h)=14
9+h^2-6h-1-h^2+2h=14
-4h+8=14
-4h=6
h=-3/2
16=2(3+3/2)^2+k
16=2×81/4+k
k=16-81/2=-49/2
so y=2(x+3/2)²-49/2
Step-by-step explanation:
What is the product of -8 and 5? A. 40 B. -40 C. 13 D. -3
Answer:b-40
Step-by-step explanation:
the volleyball team needs new uniforms. the students plan to sell plush toy Eagles ( the school mascot) for $5 each. The students find three companions on-line that sell stuff mascots. Company A cell's 12 eagles for $34.08. Company B cells 15 equals for $42.90. Company C charges $50.58 for 18 eagles. which company has the Best Buy?
Answer:
Company C
Step-by-step explanation:
You divide the amount of money it all costs to the number of plushies they are selling it for.
A: 34.08/12 = $2.84 each
B: 42.90/15 = $2.86 each
C: 50.58/18 = $2.81 each
So C has the least amount of money spent for a greater amount of plushies so C would be the Best Buy.
Given 11 different natural numbers, none greater than 20. Prove that two of these can be chosen, one of which divides the other.
Answer: the answer is 0.55
Step-by-step explanation:
Given 11 different natural numbers, none greater than 20. Prove that two of these can be chosen, one of which divides the other.
Answer:11 honestly have no idea but im going to give my best answer it is 31
Answer:
777 838 3
Step-by-step explanation:
sood
What is a pre-image??? SaberXTooth bro answer me!!!
Answer:
Step-by-step explanation:Much is usually anticipated about the fierce and decidedly bloody clashes between Wolverine and Victor Creed, the man known as Sabretooth, even though these men are arguably two sides of the same coin. Each of them has deadly claws that rend and draw blood; each has a generous amount of fear and intimidation working for them; each has a healing factor that prevents them from being mortally wounded (eventually reaching preposterous levels of effectiveness); and each has killed and will kill if the situation calls for it. Yet there are differences, as well: Logan's skeleton, as well as his claws, are made of the unbreakable metal known as adamantium; and while there have often been instances where he's been shown to be merciless, he's not nearly as sadistic as Creed, who will not hesitate to kill even when there is no reason for it. Perhaps the difference that keeps us engaged, however, is the fact
Sue deposited $1,500 into two different accounts. - She deposited $600 into an account that pays 7.5% simple interest. - She deposited $900 into an account that pays 6% compounded annually. If Sue does not deposit additional money into the accounts and she doesn't withdraw any money from the accounts, which is closest to the total balance she will have in the two accounts at the end of 5 years
The required total balance at the end of the 5 years is given as $1995.
What is simple interest?Simple interest is a quick and simple formula for figuring out how much interest will be charged on a loan.
here,
Sue deposited $1,500 into two different accounts. - She deposited $600 into an account that pays 7.5% simple interest. - She deposited $900 into an account that pays 6% compounded annually.
Investment 1,
Amount = P(1 + rt)
Amount = 600(1 + 0.075×5)
Amount = $825
Investment 2,
Amount = P(1 + rt)
Amount = 900(1 + 0.06×5)
Amount = $1170
Total balance = 825 + 1170
Total balance = $1995
Thus, the required total balance at the end of the 5 years is given as $1995.
Learn more about simple interests here:
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Which pair of numbers have a greatest common factor of 3?
ghyc yh fffffjmnnnnnnnnythcgn hyStep-by-step explanation:
vvvv
If 38 = 11 + 3x, what is the value of x ?
Answer:
38-11=3x
27=3x
27/3=x
x=9
[tex]38=11+3x[/tex] collect like-terms
[tex]38-11=3x[/tex] subtract
[tex]27=3x[/tex] divide
[tex]x=\frac{27}{9}[/tex]
[tex]x=9[/tex]
plug [tex]x[/tex] in the equation to make sure of the answer
[tex]38=11+3x\\38=11+3(9)\\38=11+27\\38=38[/tex]
A jeweler uses 3.685 grams of gold to make a ring. Enter the word form for 3.685.
Answer:
three and six hundrend eighty five thousands grams of gold
Step-by-step explanation:
Is the value of the 8 in 12.984 the same as the value of the 8 in 7.38? Justify your response.
Answer:
Yes because they are both in the hundredths place
Step-by-step explanation:
0.11 to the second power
Answer:
0.0121
Step-by-step explanation:
0.11 to the second power = 0.0121
Answer: 0.0121
Step-by-step explanation:
common sense
please help asap i realy need to pass
Answer:
8/15
Step-by-step explanation:
24/46 = 0.5217391 rounds to 0.52
8/15 = 0.5333333... rounds to 0.53 this is the answer
42/90 = 0.466666.... rounds to 0.47
5/9 = 0.55555....... rounds to 0.56
mark as brainliest please
Answer:
8/15
Step-by-step explanation:
I’m doing the quiz rn
Plz help me Now! Thx
Answer:
A or/and B
Step-by-step explanation:
in A the hundreds value is 8 and [tex]\frac{8}{10} = 0.8[/tex]
in B he hundreds value is 7 and [tex]\frac{7}{10} =0.7[/tex]
hope this helps you!
Answer:
C. 1.404
Step-by-step explanation:
The 1000ths place is the 1 in 0.01
The 100ths place is the 1 in 0.001
A = 0.881
The number in the 1000ths place is 1
The number in the 100ths place is 8
1/8 is not 1/10
B = 0.722
The number in the 1000ths place is 2
The number in the 100ths place is 2
2/2 is not 1/10
C = 1.404
The number in the 1000ths place is 4
The number in the 100ths place is 0
BUT the numbe rin the 100ths place could also be written as 40, where the 4 from the 40 has moved up a place to 10th
in which case, 4/40 = 1/10
Pls help me!! ASAP I WILL GIVE BRAINLIEST Brandon's bread recipe calls for milk powder, sugar, and flour in a ratio of 2:3:15, respectively. How many pounds of each does Brandon need if the three ingredients together weigh 2 lb?
Answer:
0.2 pounds of milk
0.3 pounds of sugar
1.5 pounds of flour
Step-by-step explanation:
If we have the ratio [tex]2:3:15[/tex], then we know that all of these ingredients together will be [tex]15+3+2=20[/tex]. If we want the whole thing to weight 2 pounds, then the total weight of everything else will be [tex]20\div2=10[/tex] percent of the original.
So,
[tex]2\cdot0.1=0.2\\\\3\cdot0.1=0.3\\\\15\cdot0.1=1.5[/tex]
We can confirm this is correct because [tex]1.5+0.3+0.2=2[/tex].
Hope this helped!
Step-by-step explanation:
Simple formula [tex]\frac{item ratio}{total ratio}[/tex]×total amount
milk powder; ×2= 0.2 lb
sugar; [tex]\frac{3}{20}[/tex]×2= 0.3 lb
flour; [tex]\frac{15}{20}[/tex]×2= 1.5 lb
To check you can add them up :)
Hope this helps :)
The answers are bold*
5x +2y=22
4x+y=17
In the system of equations above, what
is the value of x+y?
A. 5 B. 4 C. 3 D. 2
Answer:
A: 5
Step-by-step explanation:
4x + y = 17 --> y = 17 - 4x
5x + 2y = 22
<=> 5x + 2 . (17 - 4x) = 22
<=> 5x - 8x + 34 = 22
<=> 34 - 3x = 22
<=> 3x = 34 - 22 = 12
<=> x = 4
y = 17 - 4x = 17 - 4 . 4 = 17 - 16 = 1
So, x + y = 4 + 1 = 5
Answer: A. 5
A sample of 257 adults is selected. The adults are classified according to voter registration status ("registered" or "not registered"). They are also classified according to preferred source of current events information ("television", "newspapers", "radio", or "internet sites"). The results are given in the contingency table below. What is the relative frequency of adults in the sample who are not registered to vote? Round your answer to two decimal places.
The relative frequency of adults in the sample who are not registered to vote is 0.47.
What is the relative frequency?Relative frequency is a statistical concept that refers to the proportion or percentage of observations or events in a given sample or population that fall into a particular category or have a particular characteristic.
We have,
To find the relative frequency of adults in the sample who are not registered to vote, we need to sum up the number of adults who are not registered:
22 + 39 + 21 + 39 = 121 and divide it by the total sample size which is 257.
Relative frequency of adults who are not registered to vote
= (number of adults who are not registered) / (total sample size)
Relative frequency of adults who are not registered to vote.
= 121/257
Relative frequency of adults who are not registered to vote
= 0.47 (rounded to two decimal places)
Therefore,
The relative frequency of adults in the sample who are not registered to vote is 0.47.
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Which statement best illustrates using the vertical line test to determine if the graph below is a function of x?
A. The graph is not a function of x because the line x = 0 intersects the graph at two points.
B. The graph is a function of x because the line x = 5 does not intersect the graph.
C. The graph is not a function of x because the line y = 0 intersects the graph at two points.
D.The graph is a function of x because the line y = 5 does not intersect the graph.
PLS HELP!!!!
Answer:
A. The graph is not a function of x because the line x = 0 intersects the graph at two points.
Step-by-step explanation:
Which ratios are equivalent to 10:16? Check all that apply. 30 to 48 25:35 StartFraction 40 Over 64 EndFraction 8:32 5 to 15
Answer:
30 to 48, 40/64
Step-by-step explanation:
Which ratios are equivalent to 10:16, and they gave us 30 to 48, 25:35, 40/64, 8/32 and 5 to 15.
For 30 to 48, we can mulitply the 10:16 by 3 to give us 30:48, so it is equal.
For 25:35, we simplify it to 5:7, while 10:16 is 5:8, so they are not equal.
For 40/64, we can take 10:16 and multiply them by 4, getting the same number. Therefore, it is equal.
For 8/32, we can simplify it down to 1/4, while 10:16 simplifies down to 5:8, it is not equal.
Lastly, for 5 to 15, w can simplify that to 1/3, and get 5:8 for 10:16, so it won't be equal.