The numbers 3, 5, 7, a, and b have an average of 15. What is the average of a and b?
Please show steps, thanks!
No spam please.
:D
Answers
therefore you don’t want to affect the average so your going to want your numbers to be equal length away from 15 so there are multiple answers one answer would be
a=14
b=16
The average of the 5 numbers is given to be
(3 + 5 + 7 + a + b)/5 = 15
Solve for a + b :
(15 + a + b)/5 = 15
15 + a + b = 75
a + b = 60
The average of a and b is then
(a + b)/2 = 60/2 = 30
Related Questions
Follow the rule to find the next three numbers in the pattern. Describe the pattern using the terms even and odd
Answers
Answer:
16, 21, 26
Step-by-step explanation:
just add 5
Just add 5 to each number
Please solve QUICKLY
Answers
Answer:
C
Step-by-step explanation:
It isn't B because the point does not start at 600 and it is not A because it shows the entire decrease of the mass in one millennium. The correct answer is c.
Help please :D
look at the photo (im really bad at this
Answers
Answer:
20
Step-by-step explanation:
20
plz help i dont get this at all i will give brainlyest
Answers
6+1/343+36+1/81−27−36+1/81-27-243+1/256+1/144+1/8+1/5
Answer:
11) 6
12) 1/343
13) 36
14) 1/81
15) 27
16) 243
17) 1/256
18) 1/144
19) 1/8
20) 1/5
Use the best-fit line below to predict the value of y when x = 7
Answers
Answer:
the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis
PLEASE HELP!!!!! SEMESTER TEST PART 2 K12 PLEASE ANSWER ALL THE QUESTIONS GETS BRAINLIEST
Answers
Answ
Step-by-step explanation:
Characteristics is greecex
Please Help ASAP!!!! (will give brainliest) ^^
Answers
Answer:68.921
Step-by-step explanation:
its S^3
SO SIMPLY
\(4.1^{3}\)
NEED HELP ASAP Triangle JKL was dilated with the origin as the center of dilation to create triangle J'K'L'. The triangle was dilated using a scale factor of 1/2 Which rule represents the dilation applied to triangle J K L to create its image, triangle J′ K′ L′ ?
Answers
Answer:
Step-by-step explanation:
C
6.8(6.7 – 7.2) – 2(4.6 + 1.2) = ???????
Answers
Answer:
6.8(6.7 – 7.2) – 2(4.6 + 1.2) =-15
Step-by-step explanation:
I need help, please!!
Answers
Answer:
4
Step-by-step explanation:
Substituting into the slope formula,
\(\frac{-3-1}{2-3}=4\)
Answer:
C. 4Step-by-step explanation:
(3,1) and (2,-3)
Use the slope formula.
Slope:
\(\longrightarrow \sf{\dfrac{y_2-y_1}{x_2-x_1} }\)
\(\sf{y_2=(-3)}\\\\\sf{y_1=1}\\\\\sf{x_2=2}\\\\\sf{x_1=3}\)
\(\sf{\dfrac{(-3)-1}{2-3}}=\sf{\dfrac{-4}{-1} }=\boxed{\sf{4}}\)
Therefore, the slope is 4, which is the correct answer.
I hope this helps, let me know if you have any questions.
Dione collects trading cards. His favorites are baseball and football cards. For
every 9 baseball cards he owns, Dione has 16 football cards. What is the ratio
of baseball cards to football cards in his collection?
OA. 16 to 9
OB. 9:16
C. 9 and 16
O D. 16
Answers
Answer:
Correct option is B) 9:16
Answer:
9:16
Step-by-step explanation:
B
Adam traveled out of town for a regional basketball tournament. He drove at a steady speed of 72.4 miles per hour for 4.62 hours.
The exact distance Adam traveled was was
334.488 or 3344.88 or 3.334488 or 33448.8 miles.
Rounding decimals to the nearest whole number, Adam traveled a distance of about
334.488 or 360 or 292 or 334.488 miles.
Answers
Answer:
334.488
Step-by-step explanation:
I used a calculator lol
Answer:
Exact = 334.488 miles
Rounded, 72 × 5 = 360
Step-by-step explanation:
There were 3 decimal places in the factors, so after multiplying all the digits, put a decimal point 3 places from the right.
Your estimate from the rounded numbers is supposed to help confirm a reasonable answer.
(to a completely unrealistic scenario)
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
Find the area of each composite figure.
Answers
Answer:
Square : 320
Semicircle: 32π
Total Area: 320 + 32π
Step-by-step explanation:
The rectangle is 16 x 20 = 320.
We know the semicircle's diameter is 16, so the radius is 8.
the area of a semicircle is \(\frac{1}{2}\pi r^2\)
the radius is 8, we plug that in to get:
\(\frac{1}{2}\pi (8^2)\ = \frac{1}{2}\pi (64) = 32\pi\)
The area of the total shape is 320 + 32π
Answer:
320+32π
Step-by-step explanation:
Let's find the rectangle by multiplying both sides.
16*20=320
Let's find the radius of the semi-circle:
16:2=8
Let's find the area of the circle and divide it by two:
The formula for the area of the circle is πr². r is the radius. Now we can plug in the information we have.
8²*π=64π
64π is the whole circle but we only need half of the circle, so we divide by 2.
64π/2=32π
We can now add the two areas in order to get the area of the full figure.
320+32π
What is the domain and range of:
Answers
Answer:
b
Step-by-step explanation:
how it works with life
Please help me I will give out the brain thing and extra point, please. Image below
△ABC and △CDE similar right triangles. The coordinates of all the vertices are integers.
A. The slope of AC¯¯¯¯¯ is less than the slope of CE¯¯¯¯¯ . This is because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is less for AC¯¯¯¯¯ than for CE¯¯¯¯¯ .
B. The slope of AC¯¯¯¯¯ is greater than the slope of CE¯¯¯¯¯ . This is because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is greater for AC¯¯¯¯¯ than for CE¯¯¯¯¯ .
C. The slope of AC¯¯¯¯¯ is equal to the slope of CE¯¯¯¯¯ . This this because ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is the same for AC¯¯¯¯¯ as for CE¯¯¯¯¯
D. The relationship between the slope of AC¯¯¯¯¯ and the slope of CE¯¯¯¯¯ cannot be determined, because the triangles are congruent.
Answers
Answer:
C.) The slopes are equal
Step-by-step explanation:
Since both of the triangles are similar right triangles they have the same slope, in order for triangles to be similar, you must be able to make them look the same. In this case triangle, CDE is a down-scaled version of triangle ABC meaning if you just multiplay all the vertices by the same (and correct) number it will make a triangle the same as ABC, therefore the triangles have equal slopes.
i have alot of work to do so this would make me go faster if u help me with this question In the picture
Answers
The base of the pyramid below is a square that has an area of 64 square inches.
Suppose that the pyramid is sliced so that the cross-section is a square with an area of 49 square inches.
How can you slice the pyramid to get that square?
Answers
Answer:
If you sliced the pyramid parallel to the base, the cross-section would be shaped like a square
Answer:
Slice it parallel to the base
Step-by-step explanation:
Marsha reads for 3 hours each day. There are 24 hours a day. What decimal represents the part of each day that Tyler spends reading?
Answers
Answer:0.125
Step-by-step explanation:
Mr. Krabs is 3 feet tall. This height is 35 of Patrick's height. How tall is Patrick? Write and solve an equation to find Patrick's height using (h) to represent the height.
Answers
Answer:
Patrick would be 1.05 feet tall
or
h=1.05 ft
Step-by-step explanation:
If Patrick is 35% of Mr. Krabs
take the 35% and divide it by 3feet
pretty simple
--------
Hope this helps!!!
If wrong please let me know
What is the slope of the graph?
Answers
Answer:2/3
Step-by-step explanation: the line is at the same distance at (-2,-10) as it is at (4,-6)
so from (-2,-10) to (4,-6) is 2 up and 3 over
meaning 2/3 = slope
The farmer harvested 4,000 bushels of grain from 40 acres. The crop produced an average of how many bushels of grain for each acre.
The answer is 100, but I'm confused about how they got that answer.
Answers
Answer:
100
Step-by-step explanation:
Average = Total sum of all numbers/number of items in a set
Average= 4,000/40 = 100
The answer is 100
Hope this explains :)
Have a nice day!
Answer: The answer is 100 because
Step-by-step explanation: If you do 40 x 100, you will get 4000. so use division first so 4000/ 40 or just multiply, 40x 100.
hink About the Process A right rectangular prism has length
, width
, and height
. You use cubes with fractional edge length
to find the volume. How many cubes are there for each of the length, width, and height of the prism? Find the volume.
How many cubes are there for each of the length, width, and height of the prism?
The length has
nothing cubes, the width has
nothing cubes, and the height has
nothing cubes.
Answers
Answer:
The length has 3 cubes
The width has 7 cubes
The height has 5 cubes
Step-by-step explanation:
Given
\(Length = 1\frac{1}{2}yd\)
\(Width = 3\frac{1}{2}yd\)
\(Height = 2\frac{1}{2}yd\)
\(l = \frac{1}{2}yd\) --- edge length
Required
Determine the number of cubes in each dimension
To do this, we divide the dimension by the edge length
For the length, we have:
\(n_{Length} = \frac{Length}{l}\)
\(n_{Length} = \frac{1\frac{1}{2}}{\frac{1}{2}}\)
Express as:
\(n_{Length} = 1\frac{1}{2} \div \frac{1}{2}\)
Change to product
\(n_{Length} = 1\frac{1}{2} * \frac{2}{1}\)
\(n_{Length} = 1\frac{1}{2} * 2\)
\(n_{Length} = 3\)
3 cubes in the length
For the width, we have:
\(n_{Width} = \frac{Width}{l}\)
\(n_{Width} = \frac{3\frac{1}{2}}{\frac{1}{2}}\)
Express as:
\(n_{Width} = 3\frac{1}{2} \div \frac{1}{2}\)
Change to product
\(n_{Width} = 3\frac{1}{2} * \frac{2}{1}\)
\(n_{Width} = 3\frac{1}{2} * 2\)
\(n_{Width} = 7\)
7 cubes in the width
For the height, we have:
\(n_{Height} = \frac{Height}{l}\)
\(n_{Height} = \frac{2\frac{1}{2}}{\frac{1}{2}}\)
Express as:
\(n_{Height} = 2\frac{1}{2} \div \frac{1}{2}\)
Change to product
\(n_{Height} = 2\frac{1}{2} * \frac{2}{1}\)
\(n_{Height} = 2\frac{1}{2} * 2\)
\(n_{Height} = 5\)
7 cubes in the height
Please help me answer.
Answers
Answer: First blank is 15 then 28 then 25 in the last blank.
Step-by-step explanation:
On the left side column it is going up by 5 and the right column is going up by 7.
And second column is 7,14,21,28,35
Please work it out !!! Express each ratio as a fraction in the simplest form.
1) 9 beetles out of 15 insects _____
2) 4 dimes to 28 dimes _____
3) 12 pennies to 72 pennies _____
4) 28 cups to 63 cups _____
5) 15 quarts to 21 quarts _____
6) 12 blue cars out of 18 cars _____
7) 25 miles out of 50 miles _____
8) 12 gallons to 16 gallons _____
Express each phrase as a rate and unit rate. (Round your answer to the nearest hundredth.)
Rate Unit Rate
9) 7 pencils for 10 dollars _______ _ _______________
10) 21 dollars for 8 books _______ ________________
11) 14 inches of snow in 4 hours _______ ________________
12) 5 calculators cost $200.00 _______ ________________
13) 7 chocolate bars cost 20 dollars _______ ________________
14) 135 miles on 8 gallons of gas _______ ________________
15) 7 dollars for 2 cans of tuna _______ ________________
16) 6 batteries cost 30 dollars _______ _
Answers
Answer:
1.) 3:5
2.) 1:7
3.) 1:6
4.) 4:9
5.) 5:7
6.) 2:3
7.) 1:2
8.) 3:4
Step-by-step explanation:
I found the GCF of all the problems and put them into a ratio.
PS. I cant do 9-16 hopefully someone else can!
10) 8:21
11) 4:14
12) 5: 200
13) 7: 20
14) 8: 135
15) 2: 7
16) 6:30
Use the digits 1 through 9, exactly one time each, to fill in the boxes and make three decimals whose sum is as close to one (1) as possible. 0. ??? 0. ??? + 0. ??? ----------
Answers
Answer:
0.789 + 0.631 + 0.542
Step-by-step explanation:
This is just my thought over estimate
Answer:
10x
Step-by-step explanation:
Multiple 1 and 10 add thex
please help me i will give brainliest to first person to anwser.
Answers
First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.
Which inequalities would have an open circle when graphed? Check all that apply.
t Less-than-or-equal-to 25
-2.5 Less-than-or-equal-to m
x > 5.4
One-half less-than x
x > 0
Answers
An open circle is used to graph strict inequalities, which means the inequality does not include the value at the boundary. The inequalities that would have an open circle when graphed are:
x > 5.4
One-half less-than x
x > 0
if an inequality states less than OR equal to that means the circle will be closed when graphed
Math......Please Help........
Answers
i think the answer for this question is 25
64068 - X divided by 74 What is the SMALLEST possible answer?
Answers
Answer:
23421
Step-by-step explanation
x = 32094 divided by 74 = 12.0932 so 64068 - 12.0932 = 64055.9068
good luck
Answer:
Already have the answer, but its 23421.
Step-by-step explanation: