Answer:
x = 50
Step-by-step explanation:
Let x be the original number.
This question can be expressed as:
0.4x = 20
0.4 of the original number is 20.
Now, we can directly solve for x:
4x = 200
x = 50
Answer:
8
Step-by-step explanation:
40 times 0.20 is 8.
You can also use 40 percent of 20, which is also 8, but the original is easier to comprehend.
PLEASE HELP I DON’T HAVE MUCH TIME LEFT TO TURN THIS IN AHHH HELP MEEEEEE
Answer: 1 goes to 3, 2 goes to 1, 3 goes to 2, and 4 goes to 4
Step-by-step explanation:
In 1994, 45% of students graduated from university in less then 5 years. In 2000, 41% of students graduated from university in less then 5 years.
A) Write a equation relating the year of graduation to the number of year spent in university
b) If this linear trend continues, what percent of university students will graduate in less than 5 years at the end of 2012?
Sydney described a ruler as a length of plastic that starts at 0 and continues on to 12 inches. The geometric term that best describes Sydney's description is a
Answer:
Line segment because it is part of a line that has two endpoints which are the 0 inch mark and the 12 inches mark.
Find the volume of the cylinder. Round your answer to the nearest tenth.
r= 15 ft
h= 7 ft
Answer:
4948
Step-by-step explanation:
volme of a cylinder= π[tex]r^{2}[/tex]×h
Answer:
Step-by-step explanation:
we know the volume of a cylinder = [tex]\pi r^{2} h[/tex]
= 22/7* 15 * 15* 7
= 22*225
= 4950
Which statement best describes the function below?
f(x) = 2x^2– 3x+1
It is a many-to-one function.
PLEASE HELP IM DESPERATE IVE BENN WORKING ON THIS FOR THE PAST 48 HOURS I AM MARING BRAINIEST!: A constructor is measuring the perimeter of a plot for a building. 31% of the way around the perimeter, the constructor has measured 14 meters. How far around is the entire perimeter? Round your answer to the nearest hundredth.
Answer:
P = 45.16 meters
Step-by-step explanation:
Let the perimeter by P
31% of P is 14 meters
P*31% = 14 meters
Change to decimal form
P*.31 = 14
Divide each side by .31
P*.31/.31 = 14/.31
P =45.16129032
Rounding to the nearest hundredth
P = 45.16 meters
Drag the similar figure into the table
Answer:
So actually #1 is answer. Thats because if we see last one it doesn't have a right angle but the original does. In the next one the angles dont match. The 23 and 67 degree angles are not in the original figure. We can see that the last one has those angles and the sides are switched and just multiplied by 2. Therefore the answer to this question is:
#1 is the answeryou want to deposit $4000 in a bank where you earn and interest rate of 6 percent per year. what will it’s future value be after five years?
Answer:
work is shown and pictured
Ned pours 7 2/5 ounces of water from a beaker contains 10.25 ounces . How much water is left?
2/5 = 0.4 as a decimal.
Now subtract:
10.25 - 7.4 = 2.85 ounces are left
URGENT!! A 16 inch board is to be cut into three pieces so that the second piece is twice as long as the first piece and the third piece is 5 times as long as the first piece. If x represents the length of the first piece, find the lengths of all three pieces. what is the length of the first piece, the second piece, and third piece?
Answer:
Step-by-step explanation:
let length of first piece = x in
length of second piece = 2x
length of third piece = 5x
x+2x+5x= 16
8x =16
x =16/8
x=2
length of :
first piece =2 inches
second piece = 4 inches
third piece = 10 inches..
please mark me as the brainliest..
Answer:
2, 4, 10 in
Step-by-step explanation:
The first piece is x thus the second piece is 2x ( twice as long as first ) and
the third piece is 5x ( five times as long as the first )
Add the 3 together and equate to 16
x + 2x + 5x = 16, that is
8x = 16 ( divide both sides by 2 )
x = 2
Thus
first piece = x = 2 in
second piece = 2x = 2 × 2 = 4 in
third piece = 5x = 5 × 2 = 10 in
If f(x) = 2x2 + 1 and g(x) = x2 - 7, find (f - g)(x).
help?
Answer:
-1
Step-by-step explanation:
2x2=4-1=3×2=6-7=-1
Please answer CORRECTLY !!!! Will mark brainliest !!!!!!!!
Answer: A, C
Step-by-step explanation: Let me know if you need an explanation.
Pls answer this fast (30 points)
Simplify the algebraic expression -2(x - 3) + 4(-2 x + 8)
Answer:
-10x + 38.
Step-by-step explanation:
-2(x - 3) + 4(-2x + 8)
= -2x + 6 - 8x + 32
= -10x + 38.
The arithmetic sequence a; is defined by the formula:
a1=4
ai = ai-1 + 11
Find the sum of the first 650 terms in the sequence.
Answer:
The sum of the first 650 terms of the given arithmetic sequence is 2,322,775
Step-by-step explanation:
The first term here is 4
while the nth term would be ai = a(i-1) + 11
Kindly note that i and 1 are subscript of a
Mathematically, the sum of n terms of an arithmetic sequence can be calculated using the formula
Sn = n/2[2a + (n-1)d)
Here, our n is 650, a is 4, d is the difference between two successive terms which is 11.
Plugging these values, we have
Sn = (650/2) (2(4) + (650-1)11)
Sn = 325(8 + 7,139)
Sn = 325(7,147)
Sn = 2,322,775
Data Set #1
The following data were collected using a car with a water clock set to release a drop in a unit of
time and a meter stick. The car rolled down an inclined plane. Three trials were run. Create a
data table with each trial and an average distance column.
Time (drops of water)
Distance (cm)
1
10, 11,9
2
29, 31, 30
3
59,58, 61
4
102, 100, 98
5
122, 125, 127
Answer:
The data table is attached below.
Step-by-step explanation:
The average of a set of data is the value that is a representative of the entire data set.
The formula to compute averages is:
[tex]\bar x=\frac{1}{n}\sum\limits^{n}_{i=1}{x_{i}}[/tex]
Compute the average for drop 1 as follows:
[tex]\bar x_{1}=\frac{1}{3}\times[10+11+9]=10[/tex]
Compute the average for drop 2 as follows:
[tex]\bar x_{2}=\frac{1}{3}\times[29+31+30]=30[/tex]
Compute the average for drop 3 as follows:
[tex]\bar x_{3}=\frac{1}{3}\times[59+58+61]=59.33[/tex]
Compute the average for drop 4 as follows:
[tex]\bar x_{4}=\frac{1}{3}\times[102+100+98]=100[/tex]
Compute the average for drop 5 as follows:
[tex]\bar x_{5}=\frac{1}{3}\times[122+125+127]=124.67[/tex]
The data table is attached below.
The average of the numbers in the data table will be 10, 30, 59.33, 100, and 124.67.
How to explain the data table?The average for drop 1 will be:
= 1/3 × (10 + 11 + 9)
= 10
The average for drop 2 will be:
= 1/3 × (29 + 31 + 30)
= 30
The average for drop 3 will be:
= 1/3 × (59 + 58 + 61)
= 59.33
The average for drop 4 will be:
= 1/3 × (102 + 100 + 98)
= 100
The average for drop 5 will be:
= 1/3 × (122 + 125 + 127)
= 124.67
Learn more about data table on:
https://brainly.com/question/26045736
On a recent trip to the movies , you see a advertisement for 2 adult tickets and 6 child tickets for $60. Write and equation using A to represent the cost of an adult ticket and C to represent the cost of a child ticket
Answer:
2A + 6C = $60
Step-by-step explanation:
When asked to write and equation or expression, literally. O verte what is in the question to an algebra. The only difference between expression and equation is that equation shows what goes on the other side of the equals sign when expression doesn’t
Hope this helps
Good Luck
Answer:
2A + 6C = $60
Step-by-step explanation:
Steven and Jennifer meet their friends at the movies and buys them popcorn and drinks. Steven spends $138.50 for 12 drinks and 5 bags of popcorn. Jennifer buys two drinks and seven bags of popcorn for a total of $57. How much was each drink and each bag of popcorn?
Answer:
The cost of each drink was $9.25 and the cost of each popcorn was $5.5
Step-by-step explanation:
Let the cost of each drink be d
Let the cost of each popcorn be p
Steven spends $138.50 for 12 drinks and 5 bags of popcorn. This implies that:
12d + 5p = 138.50 _________ (1)
Jennifer buys two drinks and seven bags of popcorn for a total of $57. This implies that:
2d + 7p = 57 ______________(2)
We have two simultaneous equations/
12d + 5p = 138.50 _________ (1)
2d + 7p = 57 ______________(2)
Multiply (2) by 6 and subtract (1) from it:
12d + 42p = 342
- 12d + 5p = 138.50
———————————
37p = 203.5
p = $5.5
Puutting the value of p back in (2):
2d + 7(5.5) = 57
2d + 38.5 = 57
2d = 57 - 38.5 = 18.5
d = 18.5 / 2 = $9.25
The cost of each drink was $9.25 and the cost of each popcorn was $5.5
what is adverb meaning
Answer:
A word describes a verb.
Step-by-step explanation:
An adverb is a word that describes a verb. For example, he ran quickly. Here, quickly is the adverb because it is describing how he ran.
Someone pls help meee plssss fast
Answer: choices 1, 4, and 5.
Step-by-step explanation: uhhhh the answers basically explain why. 1 because it's a terminating decimal, 4 because it's a repeating number, and 5 because the square root of 11 is not a perfect square, and is not a repeating or terminating decimal.
A bag contains 4 red marbles and 2 white marbles. A marble is selected, and then another marble is selected. What is p(red,then white)?
Answer:
Step-by-step explanation:I don't day you must have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me...
Em um jogo de Xbox 360, Artur conquistou 50.000 pontos. Luiz Diego conquistou 7.645 pontos a menos que Artur no mesmo jogo. Quantos pontos conquistou Luiz Diego? *
Answer:
350.645 pontos
Step-by-step explanation:
Answer:
I'll shall take
Step-by-step explanation:
And I shall leave
Jonathon has a bag that contains exactly one red marble (r), one yellow marble (y), and one green marble (g). He chooses a marble from the bag without looking. Without replacing that marble, he chooses a second marble from the bag without looking. Which outcomes would be included in the sample space for Jonathan’s experiment? Select three options. yy gr gg rg yr
Answer:
gr rg yr
Step-by-step explanation:
because there is no repeated marble in the same outcome
Answer:
gr rg and yr
Step-by-step explanation:
The FDA regulates that fresh Albacore tuna fish contains at most 0.82 ppm of mercury. A scientist at the FDA believes the mean amount of mercury in tuna fish for a new company exceeds the ppm of mercury. The hypotheses are: H0:µ = 0.82 H1:µ > 0.82 What is a type II error in the context of this problem? A. The fish is accepted by the FDA when in fact it had more than 0.82 ppm of mercury. B. The fish is accepted by the FDA when in fact it had less than 0.82 ppm of mercury. C. The fish is rejected by the FDA when in fact it had less than 0.82 ppm of mercury. D. The fish is rejected by the FDA when in fact it had more than 0.82 ppm of mercury.
Answer:
Option A
Step-by-step explanation:
A type II error occurs when the researcher fails to reject the bull hypothesis when it is false.
In this study, the
null hypothesis is H0:µ = 0.82 while the alternative hypothesis is H1:µ > 0.82
Thus, the type II error will be that the fish is accepted by the FDA when in fact it had more than 0.82 ppm of mercury.
what is 1 divided by 0.05
Answer:
20
Step-by-step explanation:
20
I hope it will help
khan academy is giving me only this explanation but won't go into detail and I cannot understand it for the life of me. how do I know what number to multiply both variables by? what exactly does expanding the parentheses mean? help
Answer:
12 - 4i
Step-by-step explanation:
-2i ( 2+6i)
Distribute
-2i * 2 + -2i *6i
-4i - 12 i^2
We know that i^2 = -1 so replace it
-4i - 12(-1)
-4i + 12
Then put in the order a+bi where the real number comes first and the imaginary number comes last
12 - 4i
Can I please help me ?!
Answer:
14 ft
Step-by-step explanation:
area = length * width
140 sq ft = 10 ft * width
width = (140 sq ft)/(10 ft)
width = 14 ft
The Juarez family is making a cross- country trip on Saturday they traveled 450.8 miles on Sunday they traveled 604.6 miles how many miles have they traveled so far
Answer:3
Step-by-step explanation:$;$$;!’
Which linear inequality is represented by the graph?
y > Two-thirdsx – 2
y < Two-thirdsx + 2
y > Two-thirdsx + 1
y < Two-thirdsx – 1
The inequality that represents the graph is y < (2/3)x - 1. Then the correct option is D.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
The two points are given below.
(3, 1) and (-3, -3)
The inequality is given below.
(y + 3) < [(1 + 3) / (3 + 3)](x + 3)
y + 3 < (2/3)(x + 3)
y + 3 < (2/3)x + 2
y < (2/3)x - 1
The inequality that represents the graph is y < (2/3)x - 1. Then the correct option is D.
More about the inequality link is given below.
https://brainly.com/question/19491153
#SPJ6
Answer:
D fasho
Step-by-step explanation:
2. The best way to mathematically write the phrase
"eighteen increased by seven times a number is eight” is:
18 + 7n = 8
18 + 7 + n=8
7n + 18 = 8
Answer:
18+7n=8
Step-by-step explanation:
18
increased by means +
7 times a number
18+ 7n
is means equal
18+7n=8
The lines on the graph below represent the cost of apples at four different stores,
Cost of Apples
10
9
D
Total Cost in Dollars
1 2 3 4 5 6 7 8 9
Pounds of Apples
At which store is the cost of apples the least?
Answer:
The store is the cost of apples the least is store A
Step-by-step explanation:
On the graph the lowest line is A which means the prices are lower for the pounds of apples.
At Store A is the cost of apples the least. This is because it always has the lowest price for each pound compared to the other lines.