Answers
Answer:
a. 12a + 3b
b. 5b + 3a
Step-by-step explanation:
Which terms have the same thing applied to them? This is what I ask myself while figuring these out.
a. 5 and 7 both are multiplied by a, so you can combine the expressions to make 12a.
b. 10b - 5b = (10 - 5)b
Both 10 and 5 are multiplied by b, so you can just subtract the integers to get 5b.
I hope this helped!
B. Just like in the last problem. You would do 10-5 because they both have b. So it would be 5b+3a
Related Questions
Nathan found two worms in the yard and measured them with a ruler. One worm was 4/5 of an inch long. The other worm was 1/10 of an inch long. How much longer was the longer worm? Write your answer as a fraction or as a whole or mixed number.
please help and thank you even if you dont
Answers
Answer:
7/10
Step-by-step explanation:
4/5 is greater than 1/10
I converted 4/5 into 8/10 because I multipled the numerator and denominator by 2.
Then I subtracted 8/10 from 1/10 and got 7/10
Ballio's family traveled 2/7 of the distance to his uncle’s house on Saturday. They traveled 2/5 of the remaining distance on Sunday. What fraction of the total distance to his uncle’s house was traveled on Sunday?
Answers
Answer:
4/35
Step-by-step explanation:
10/35-14/35=-4/35
Please answer this correctly and explain how you did it.
Answers
Answer:
x = 128
Step-by-step explanation:
The angles are across form each other, meaning that they are the same angle. I hope this explains it enough, if not I can add more.
Which selection best indicates the slices that can be made from from the right triangular prism?
Question 1 options:
triangle, trapezoid, rectangle, quadrilateral, pentagon
triangle, trapezoid, quadrilateral
triangle, trapezoid, hexagon
triangle, quadrilateral, hexagon
Answers
Answer:
triangle, trapezoid, quadrilateral
Step-by-step explanation:
you'll see it if u look closer
hope this helps out .
(CORRECT ANSWER GETS BRAINLIEST! 20 POINTS!!!)
What is the quotient of the division below?
2599 divided by 9
288.7
288.ModifyingAbove 7 with bar
288.8
288.ModifyingAbove 8 with bar
Answers
Step- by -Step:
PLEASE HELP ASAP!!!
Answers
Answer:
its 17degree as it is supplement to 163
So the answer is 17degrees
The figure is made up of two identical semicircles enclosed within a rectangle. Find the perimeter of the shaded region using 3.14
Answers
Answer:
61.74
Step-by-step explanation:
so u start off by solving for ghe semicircles.
the formula I wrote for it was:
1/2(3.14)(3)(3)=14.13
then i multiplied it by 2 because the other semicircle so you get:
28.26
then u find the area of the rectangle and subtract 28.26.
15x6=90
90-28.26=61.74
Please answer this! Im desperate UvU,
Answers
x=5
4x-1 ≤19
4(5)-1 ≤19
20-1 ≤19
19 ≤19
x=5
4x-1<19
4(5)-1<19
19<19
Explanation:
In problem one the greater then symbol has a line under it, this means that the symbol now means greater then or equal to. Since 19 is equal to 19 it is correct. In problem to the greater then symbol has no line under it meaning it only means greater then. Since 19 is not greater then 19 it is false.
So basically the difference is:
≤ = greater then or equal to
< = greater then
Part B:
5x+2=47
-2 -2
5x=45
/5 /5
x=9
Explanation:
Since when you solve the equation x=9 the value 9 from the set makes the equation.
Hope this helped :)
My cousin needs help with this one to and if you ask why i just dont help her it's cause I dont know this she is to grades higher then me
Answers
Answer:
Step-by-step explanation:
tell her that she needs to put the triangle in quadrant 1
so you want to rotate it clockwise 180 and to do that you need
here is the answer
( 0,1 ) ( 5,2 ) ( 3,4 )
SOMEONE HELP ME !
WILL GIVE BRAINLISIT
directions :Use the properties and mental math to solve. Write your answer in simplest form.
( properties : comm and assov)
Answers
Answer:
Step-by-step explanation:
10. 11 4/10 and 11. 6 4/8
I’ll give brainliest if you help me
Answers
Answer:
B
Step-by-step explanation:
Answer:
b i copy cause i dont know
Step-by-step explanation:
Elena would like to know the average height of seventh graders in her school district. She measures the heights of everyone in a random sample of 20 students. The mean height of Elena's sample is 62 inches, and the MAD (mean absolute deviation) is 2 inches. SELECT ALL TRUE STATEMENTS.
a. The median height of the sample must be between 59 and 63 inches.
b. Another random sample of 20 students is likely to have a mean between 57 and 65 inches
c. The mean height of these 20 students is likely to be the same as the mean height of all students in the district.
d. The mean height of these 20 students is likely to be the same as the mean height of a second random sample of 20 students.
e. Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.
Answers
The statements that are true are:
- Another random sample of 20 students is likely to have a mean between 57 and 65 inches
- Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.
Options B and E are the correct answer.
What is a mean?It is the average value of the set given.
It is calculated as:
Mean = Sum of all the values of the set given / Number of values in the set
We have,
a.
The median height of the sample must be between 59 and 63 inches.
This statement cannot be determined based on the given information.
The MAD provides information about the variability of the data, but not necessarily about the location of the median.
b.
Another random sample of 20 students is likely to have a mean between 57 and 65 inches.
This statement is likely to be true.
Since the sample mean is 62 inches and the MAD is 2 inches, it is reasonable to expect that another random sample of the same size would have a similar mean, within a few inches.
c.
The mean height of these 20 students is likely to be the same as the mean height of all students in the district.
This statement is uncertain.
The sample mean can be a good estimate of the population mean if the sample is representative, but we cannot be certain without more information about the sampling method.
d.
The mean height of these 20 students is likely to be the same as the mean height of a second random sample of 20 students.
This statement is uncertain.
The mean of a second random sample of the same size could be different due to random sampling variation.
e.
Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.
This statement is likely to be true.
Generally, larger sample sizes tend to provide more accurate estimates of population parameters, as they are less affected by random sampling variation.
Thus,
The statements that are true are:
- Another random sample of 20 students is likely to have a mean between 57 and 65 inches
- Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.
Learn more about mean here:
https://brainly.com/question/23263573
#SPJ7
Need with question b
Answers
Answer:
basketball
Step-by-step explanation:
bc the dots are more spread out :)
Which American mathematician realized that words, sounds, and images could all be represented using a binary code
Answers
Answer:
Claude Shannon. I think, but I'm not sure.
Step-by-step explanation:
The graph shows information about the lion population at a safari park. Lions were introduced in the park in 2010. In 2012, the park has a population of 32 lions. A year later, in 2013, the park has 128 lions. Write an exponential function that models this situation. Let X represent the number of years since 2010 and let f(x)represent the number of lions.
Answers
Answer:
never gonna
Step-by-step explanation:
give you up,
Let you down,
make you cry
Run around and desert you
survey asked eight students about their scores on a history test and whether they studied for the test. The table shows the results of the survey.
Test Scores
Studied
Did Not Study
88
34
90
67
86
80
96
59
Which statements about the data sets are true? Check all that apply.
The mean absolute deviation for the group of students who studied is 12.
The mean absolute deviation for the group of students who did not study is 13.5.
The data for the group that studied are more spread out than the data for the group that did not study.
The data for the group that did not study are more spread out than the data for the group that studied.
The data for the group that studied are more clustered around the mean than the data for the group that did not study.
The data for the group that did not study are more clustered around the mean than the data for the group that did study.
Answers
Answer:The data for the group that did not study are more spread out than the data for the group that studied.
The data for the group that studied are more clustered around the mean than the data for the group that did not study.
The data for the group that did not study are more clustered around the mean than the data for the group that did study.
Step-by-step explanation:
Answer:
Answer:The data for the group that did not study are more spread out than the data for the group that studied.
The data for the group that studied are more clustered around the mean than the data for the group that did not study.
The data for the group that did not study are more clustered around the mean than the data for the group that did study.
Step-by-step explanation:
I need help with this question no addling links or doing it just for points i really don't want that stuff if i see it i will report it
Answers
Livingston Hardware kept an inventory of 779,580 lawnmowers in the past. With a change in management, the hardware store now keeps an inventory of 45% more lawnmowers. How many lawnmowers is that? lawnmowers
Answers
Answer:
350811
Step-by-step explanation:
Just us a calculator, hope this helps Can I have brainliest
The circle shown below is centered at (0, 0) and passes through the point P located at (2, 0).
Answers
Answer:
1 , -5 I just did this one lol
Answer:
1, -5 so basically it's B
The solution to 13x = 78 is x =___
Only input whole number and no links!
Answers
Answer:
6
Step-by-step explanation:
Answer:
the answer is 6
Step-by-step explanation:
bc 78 divided my 13 equals 6
i took the exam
Sophie is 3.5 years younger than her brother. She knows that when she is b years old, her brother is b+3.5 years old. Right now, Sophie is 11.5 years old.
How old is Sophie's brother?
Write your answer as a whole number or decimal
Answers
Ellie buy a lawn mower online for $33. If shipping and handling are an additional 30% of the price ,how much shipping and handling will Ellie pay?
Answers
Answer:
$42.90
Step-by-step explanation:
Calculate what 30% of 33, and then add that answer to $33+$9.9=$42.90
question ^^^^^^^^^^^^^^^^^^^^^^^$
Answers
Answer:
x=0 x=28
Step-by-step explanation:
Explanation: the absolute value of 28 - 14 is 14 & the absolute value of 0 - 14 is also 14.
Which is the correct label of the parallel lines?
Answers
Answer: a
Step-by-step explanation: a||b is the correct answer because the lable under each ray is a a and b a be and since they parallel the two "||" represent it.
will give brainliest
one side of a trapezoid is extended and the dotted line forms a right angle with the extended line. use given information to find measurement of angle p.
answers are:
A. 30°
B. 45°
C. 60°
D. 120°
Answers
Answer:C
Step-by-step explanations:
because its acute duhhh
Find the length of the segment indicated. Round your answer to the nearest tenth if necessary
Answers
Answer:
16
Step-by-step explanation:
Hi there,
Since we know that 16 and x represents the radius of the circle, it can be determined that they are the same length. Therefore, the length of the segment indicated is 16.
I am quite sure I did this question correctly. Please let me know if I made a mistake.
Cheers.
i do not understand this
Answers
Answer:
10. 0.20
11. country
12. Hip-Hop and R&B, 3/10
13. Rock, 0.05
Step-by-step explanation:
10. for the boys, pop= 10% and country= 10%. add them together to get 20% and write that as a decimal, which is 0.20
11. 1/5 of 100% is 20%, and 20% of girls chose country as their favorite
12. Hip-Hop and R&B are the favorites for the most boys at 30% each. write that as a fraction of 100% which is 3/10
13. Rock is the least favorite among the girls at 5%, and 5% as a decimal is 0.05
HElP what There is a $20 shirt and it is 1/3% off
Answers
Answer:
13.4 left
Step-by-step explanation:
$6.67 if you need to round, if not then $6.66
Marie is bringing bagels and cream cheese to school as a birthday snack for her class. The cost of b bagels and c packages of cream cheese is 0.85b+2.5c dollars. Marie is bringing 30 bagels and 2 packages of cream cheese.
What price did Marie pay for the bagels and cream cheese?
Answers
Answer:
30.5 is the answer
Step-by-step explanation:
price of 1 bagels=0.85
price of 1 cream cheese=2.5
30*0.85+2*2.5
25.5 +5
30.5
just multiply with the number of thing by the price of 1 thing
Help MOI Again PLEASE lol
Answers
Answer:
-5a + 20a +-4a - -6= -16
Answer- a= -2
Step-by-step explanation:
Hope this helps!
Answer:
-2
Step-by-step explanation:
-5a+20a+-4a_-6=-16
20a-9a+6=-16
11a+6=-16
11a=-16-6
11a=-22
a=-22/11
a=-2