Answers
Answer:
22.5 mins
Step-by-step explanation:
To find what that video's length must be, subtract the previous videos' lengths from the requirement, 5 hours. (x is the video length of her fourth video)
7/8 + 1 1/4 + 2 1/2 + x = 5
To make adding these fractions easier, find a common denominator.
7/8 + 1 2/8 + 2 4/8 + x = 5
4 5/8 + x = 5
x = 3/8, or 22.5 minutes.
Answer:
[tex]\frac{3}{8} \text{ hours.}[/tex]
Step-by-step explanation:
Her first three videos totalled up to
[tex]\frac{7}{8} + 1\frac{1}{4} + 2\frac{1}{2}\\=\frac{7}{8} + \frac{5}{4} + \frac{5}{2}\\=\frac{7}{8} + \frac{5}{4} \cdot \frac{2}{2} + \frac{5}{2} \cdot \frac{4}{4}\\=\frac{7}{8} + \frac{10}{8} + \frac{20}{8}\\=\frac{7+10+20}{8}\\=\frac{37}{8}[/tex]hours. To meet the [tex]5 = \frac{40}{8}[/tex] hour goal the shortest fouth video she can make is [tex]\frac{40}{8} - \frac{37}{8} = \frac{3}{8}[/tex] hours, because if the fourth video was any shorter, she'd end up with less than [tex]\frac{37}{8} + \frac{3}{8} = \frac{40}{8} = 5[/tex] hours in total (this is called a proof by contradiction). We are now done.
Related Questions
which of the following types of electromagnetic radiation has the shortest wavelength
a.visble
b.infared
c ultraviolet
d.radio
Answers
Answer:
i thought it would be - B. ULTRAVIOLET ray
In a parallelogram ABCD is given. Find the measurement of angle A.
Answers
Problem 3
The bill at dinner was $58.24 before tax and tip.
There is a 6% sales tax. After the tax, an 18% tip is
added.
What is the total including tax and tip?
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Answer:
$62.bope this helpsjensbdnd
Whoever fills the rest out I’ll love you forever!
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Answer:i need to know what the image is.....
Step-by-step explanation:
Which equation shows how to rewrite the sum of 30 and 45 using their greatest common factor? 30 + 45 = 5(6 + 9) 30 + 45 = 15(2 + 3) 30 + 45 = 5(6) + 15(3) 30 + 45 = 5(6)(3)
Answers
Answer: 30 + 45 = 15(2 + 3)
Step-by-step explanation:
The greatest common factor for 30 and 45 will be gotten as follows:
Factor of 30 = 2 × 3 × 5
Factor of 45 = 3 × 3 × 5.
GCF = 3× 5 = 15
Therefore, the equation that shows how to rewrite the sum of 30 and 45 using their greatest common factor will be:
30 + 45 = 15(2 + 3)
Here are some values of sequence Q. Write a recursive definition for the sequence.
n Q(n)
1 3
3 8
7 18
Answers
Answer: Q(n) = Q(n - 1) + 2.5
Step-by-step explanation:
We have 3 values of the sequence Q(n)
These values are:
Q(1) = 3
Q(3) = 8
Q(7) = 18
I would think that this is a geometric sequence.
Remember that the equation for the n-th term of a geometric sequence is:
A(n) = A(1)*r^(n-1)
where r is a constant, and A(1) is the first term of the sequence.
If we rewrite the terms that we know of Q(n) in this way we get:
Q(3) = Q(1)*r^(3 - 1) = 3*r^2 = 8
Q(7) = Q(1)*r^(7 - 1) = 3*r^6 = 18
Then we have two equations:
3*r^2 = 8
3*r^6 = 18
We should see if r is the same for both equations:
in the first one we get:
r^2 = 8/3
r = (8/3)^(1/2) = 1.63
and in the other equation we get:
r^6 = 18/3
r = (18/3)^(1/6) = 1.34
Then this is not a geometric sequence.
Now let's see if this is an arithmetic sequence.
The n-th term of an arithmetic sequence is written as:
A(n) = A(1) + (n - 1)*d
where d is a constant.
If we write the terms of Q(n) that we know in this way we get:
Q(3) = Q(1) + (3 - 1)*d = 3 + 2*d = 8
Q(7) = Q(1) + (7 - 1)*d = 3 + 6*d = 18
We need to see if d is the same value for both equations.
in the first one we get:
3 + 2*d = 8
2*d = 8 - 3 = 5
d = 5/2 = 2.5
In the second equation we get:
3 + 6*d = 18
6*d = 18 - 3 = 15
d = 15/6 = 2.5
d is the same for both terms, then this is an arithmetic sequence.
An arithmetic sequence is a sequence where the difference between any two consecutive terms is always the same value (d)
Then the recursive relation is written as:
A(n) = A(n - 1) + d
Then the recursive relation for Q is:
Q(n) = Q(n - 1) + 2.5
f(x)=3•2^x for x = 5
Evaluate the function
Please help!!!
Answers
______________________________
1.) Calculate 2 to the power of 5:[tex]2^5=32[/tex]- When calculating powers, you take the base and multiply by the base however what the number of the exponent is. In this case the base is 2. So you do 2 × 2 × 2 × 2 × 2 = 32.
2.) Multiply 3 and 32:[tex]3[/tex] × [tex]32=96[/tex]So your answer is [tex]\bold{96}[/tex].
______________________________
What is X?
Please help!
Answers
Answer:
94
Step-by-step explanation:
the sum of the angles in a triangle add up to equal 180
180-73-13=94
Answer: X = 89°
Step-by-step explanation:
At first glance I could tell this was an isosceles triangle, the angles of an isosceles triangle add up to 180°. So just add 73° + 13° = 91° so then you subtract 91° from 180° and you get 89°.
Find the measure
of DBC
Answers
Answer:
[tex]angle \: abc = \\ 4x + 2x = 180 \\ 6x = 180 \\ x = 30 \\ angle \: dbc = 2x \\ = 2 \times 30 \\ = 60[/tex]
need brainliest pls..can you help me please
Answers
The area of the sector which is the white triangle adding the shaded region is 68.9/360*π*9.28^2=51.78005(rounding to 5th digit after decimal point for accuracy before we do final round for answer)
The area of the white triangle in the sector has area 1/2*9.28^2*sin(68.9)= 40.17223(rounding to 5 digits again for some accuracy.
Now we take out the white triangle from the sector.
51.78005-40.17223=11.60782
rounding to the nearest tenth we get 11.6 cm^2
Problem done!
Hope this helped and if you have any questions about my explanation just ask in the comment and I will answer.
Determine the slow & y-intercept for the line shown. Then write the equation . If you hurry I’ll mark brainliest
Answers
Answer:
y = 3x + 4
Step-by-step explanation:
slope is 9/3 simplified to 3
y intercept is 4
27. Jacob collects hats. He has 6 hats already and collects 2
more hats each week. How many week would it take Jacob
to collect 32 hats?
Answers
I need help with Geometry
Answers
Is 5(3x +4) equivalent to 15x + 20 ?
Answers
Answer:
yes
Step-by-step explanation:
5(3x+4)
5*3=15
5*4=20
15x+20
A student walks at a rate of 1.5 meters per second for 4 seconds and then stops for 4 seconds. Then the student
continues walking at the original rate.
Which graph best represents the student's walk?
Answers
Answer:
A
Step-by-step explanation:
I finished the question and got it right
Graph is a way to represent a lot of data in a visual formal. The graph that best represents the student's walk is graph A.
What is a graph?A graph is a way to represent a lot of data in such a visual formal that it is easy for the user to understand the complete information in one go. Usually, the line of the graph is a function that follows the graph.
As we can see that the y-axis of the graph represents the distance traveled by the student while, the time taken by the student to cover the distance is given on the x-axis.
We know that the rate of 1.5 meters per second, means that the student will cover the 1.5 meters in 1 second, therefore, the line will be a slope that will represent the walk of the student. At time t=4 seconds, a student stopped for 4 seconds therefore, the time will increase but the distance will be constant for the student, therefore, the situation will be represented by a horizontal line.
Hence, the graph that best represents the student's walk is graph A.
Learn more about Graph:
https://brainly.com/question/14375099
A. 22
B. 23
C. 24
D. 33.75
Answers
Answer:
c
Step-by-step explanation:
7.5 + 7.5 + 4.5 +4.5 = 24
Sixteen plus five times a number is more than the number plus 32. Write an inequality and solve it.
Answers
Answer:
x>4
Step-by-step explanation:
16+5x>x+32
5x>x+16
4x>16
x>4
Answer: answer my question
Step-by-step explanation:
WILL GIVE BRAINLIEST-
Complete the table to multiply x^2 - 4x + 4 and 6x + 3.
Answers
3x^2 -12x 12
Potatoes are on sale at both grocery mart and Baldwin hill market and grocery mart a 5lbs bag cost 2.85 and Baldwin they a 7lbs bag cost 4.20
Answers
Answer
The first one
Step-by-step explanation:
I think you want to know which store is better so it is
Will give brainliest if you can answer at least one of these, or tell us how to do them
Answers
See the attached picture
Use the NET as an aid to compute the surface area.
Answers
Solve the equation: х -5 = (-13)
6
Answers
Answer:
-73
Step-by-step explanation:
6 x (-13) = -78
x - 5 = -78
x = -78 + 5
x = -73
Evaluate 35/a when a=7. The value is
Answers
Answer:
a = 5
Step-by-step explanation:
a = 7
35/a
35/(7)
= 5
Hope this helped
A woodworker wants to cut a board that is 8.225 feet long into 5 equal-length pieces.How long will each of the cut boards be?
A. 0.1645
B. 1.645
C. 4.1125
D. 41.125
Answers
The answer would be B. 1.645 because 8.225/5=1.645
Hope this helps
Have a great day/night
Feel free to ask any questions
percent as a decimal or fraction. 54% of 85
Answers
Answer: 45.9
Step-by-step explanation: its right trust
Answer:
45 9/10 0r 45.9
Step-by-step explanation:
0.54 * 85
45.9
45 9/10
Mr. Tyssee got a haircut, which cost $35. He gave the
stylist a 15% tip. How much will he pay for the haricut
including tip?
Answers
Answer:
$40.25
Step-by-step explanation:
15% = 0.15, so multiply 35 * 0.15 = 5.25 to get the tip.
Since the answer is asking for both the tip and the cost, add 35 + 5.25, which gives the answer $40.25
35 x .15 = 5.25
35 + 5.25 = $40.25
Is the following relation a function?
Answers
Answer:
no
Step-by-step explanation:
the x value (-1) repeats therefore it ain't a function
Solve the equation h+28= -37
Answers
Answer:
-65
Step-by-step explanation:
h + 28 = -37
-28 -28
h = -65
help me plz for 20 points
Answers
Answer:
i believe DEC is 70 degrees
this is due in 4 hours plus i have 5 classes left please help
Answers
Answer:
Onaje is correct.
Step-by-step explanation:
To start, total up how many shirts we have, and multiply them by t. Since they are the same price, we now have a total for how many shirts they bought. This proves the second and third equations that they wrote. If you take the easy way and just add them, you'll still have 25t, making Onaje's expression correct.
EDIT: Just saw you need why it's incorrect for Paula, just hold on.
So for Paula, it's simple why she is incorrect. If you look at the third equation she wrote, she's adding 25 to 2t, which is completely incorrect, and will come up with a different result than 16t + 9t.
Hope this helps.
