Answer:
A= [tex]4x+8[/tex]
B= [tex]8x+6x \\or\\ 16x[/tex]
C= [tex]8x+12[/tex]
D= [tex]6x+6y+6z[/tex]
Step-by-step explanation:
Distributing, or the means to divide something/create a share or part of something is when we multiply the sum of two or more addends by a number to achieve the same result as multiplying each addend individually by the number then adding the products together.
With this said, part A would look like this:
[tex]4(x+2)\\4(x) + 4(2) = ?\\4x + 8[/tex]
Now, the problem doesn't specifically state to solve the problem, but if you wanted too it would look like this:
[tex]4x + 8=0\\-8 \\4x=-8\\divide 4\\4=GCF\\x=-2[/tex]
Since we are just looking for the equation, the following problems would appear as so:
B:
[tex](6+8)*x\\x(8) + x(6)\\8x+6x\\14x[/tex]
C:
[tex]4(2x+3)\\4(2x)+4(3)\\8x+12[/tex]
D:
[tex]6(x+y+z)\\6(x) +6(y)+6(z)\\6x+6y+6z[/tex]
Another way to view the distributive property is that your distributing the number outside the parenthesis to all the number inside as such.
I would be happy to help you again in the future and hope that this provided you with some clarification! Have a nice day! :D
A store discounted a the new iPhone by 10%. If the original price was $630, how much
was the discount? (How much was taken off the original price?)
Answer:
63
Step-by-step explanation:
630 x .1
Can someone help me with some of these problems? ;-; i will mark brainliest!!
For the following report about a statistical study, identify the items below: to find the public's views on obesity, researchers waited outside a fast food restaurant they had randomly selected from a list of such establishments. they stopped every 25th person who came out of the restaurant and asked whether he or she thought obesity was a serious problem.
1. The population:____.
a. all people except those who work at fast food restaurantfast food restaurants.
b. people.
c. every 25th person leaving the restaurant.
d. all people that go to fast food restaurantfast food restaurants.
2. The population parameter of interest:_____.
a. proportion who think obesity is not a serious problem.
b. proportion of people who think obesity is a serious problem.
c. proportion of people who answered the survey.
d. proportion of people who did not answer the survey.
3. The sampling frame:_____.
a. all people except those who work at fast food restaurantfast food restaurants.
b. people who think obesity is a problem.
c. every 25th person leaving the restaurant.
d. restaurant customers.
4. The sample:____.
a. people.
b. every person leaving the restaurant.
c. every 25th person leaving the restaurant.
d. all people except those who work at fast food restaurantfast food restaurants.
5. The sampling method, including whether or not randomization was employed:_____.
a. questionnaire (non-random).
b. not specified, non-random.
c. not specified, but at least "random".
d. systematic sampling.
6. Any potential sources of bias you can detect and any problems you see in generalizing to the population of interest:
A. Response bias is possible. The study is conducted in such a way as to achieve a desired response that may be different from the population in general.
B. Non-response bias is possible. Since some people leaving the restaurant may not respond to theinterview, the study may misrepresent the general population.
C. Undercoverage bias is possible. Since those interviewed just left a fast food restaurant commafast food restaurant, their opinions about obesity may differ from the population in general.
D. There is no indication of bias.
Answer:
Step-by-step explanation:
From the short passage given in the question, we are fill in the gaps with the options provided in each question. Below shows the correctly selected answer after thoroughly going through the passage.
1
b. people
2
[tex]\mathbf{b. \ proportion \ of \ people \ who \ think \ obesity \ i s \ a \ serious \ problem.}[/tex]
3
d. restaurant customers.
4
c. every 25th person leaving the restaurant.
5
d. systematic sampling.
6
C. Undercoverage bias is possible. Since those interviewed just left a fast-food restaurant, fast food restaurant, their opinions about obesity may differ from the population in general.
HELP ASAP AGAIN!!
It rained 10% of the 30 days last month. On how many days did it rain.
Answers
3
10
15
27
Answer:
10 days
Step-by-step explanation:
10 is 10% of 30
Write the word sentence as an inequality:
A number "x" is no more than 30.
A number "x" is no more than 30.
Giving brainliest for the right answer so pls help me!
Answer:
Radius: 3.5
Diameter: 7
i might be wrong tho im sorry !!
The answer:
Radius = 3.5cm
Diameter = 7cm
I hope I've helped <3Cuanto es 1+2:
pOrFa NoSe
Answer:
3
Step-by-step explanation:
es hora de comer
Please help I don't get this question
Answer:
10x+30
Step-by-step explanation:
Using distributive property, we have to take the x and 3 out of the parenthesis and simplify the equation.
10(x+3)
We can write this equation out as...
10 · x + 10 · 3
since 10 · x is 10x and 10 · 3 is 30 we can rewrite the simplified version as...
10x+30
Hope this Helps!!! :)
Answer:
A = 10x + 30
10 x X = 10x 10 x 3 = 30 10x + 30
I need help with this math today
Answer:
120 + 10x
or
10(12 + x)
Step-by-step explanation:
What two numbers have a product of -36 and a sum of
5?
Answer: 9, -4
Step-by-step explanation:
We can write an equation:
xy=-36
x+y=5
Factors of -36 are: 1, -36, -1, 36, 2, -13, -2, 13, 4, -9, -9, 4, 6, -6
There are only 2 factors here that add up to -36: 9 and -4
A woman can bicycle 25 miles in the same time as it takes her to walk 5 miles she can ride 10 mph faster than she can walk how fast can she walk?
Answer:
The woman walks at 2.5 mph.
Bonus: she rides her bicycle at 12.5 mph.
Step-by-step explanation:
We're told that she can bicycle 25 miles in the time takes her to walk 5. That means that on a bicycle, she moves 25 ÷ 5, or 5 times faster on a bicycle than when she runs.
We're also told that she can ride at 10 mph faster than she can walk.
That gives us two relationships to describe. If we call her speed on the bicycle "b", and her speed on foot "w", then we know:
b = 5w
and
b = w + 10
Since both of those describe b, we can simply equate them. Stating the obvious:
b = b
therefore:
5w = w + 10
We can then simplify:
5w = w + 10
4w = 10
w = 2.5
So she walks at 2.5 miles per hour.
We can test that answer too. Let's compare to the first statement, her bicycling 25 miles in the time it takes to walk five miles.
Walking 2.5 miles per hour means she'd take two hours to walk five miles.
We also know that she can ride 10mph faster, so she rides at 12.5 mph. two times that is 25, so she would indeed cover 25 miles on her bicycle in the same time that she walks five.
Using triangle RST, which side is the hypotenuse
Answer:
Side RT
Step-by-step explanation:
The hypotenuse is the longest side on a right angle triangle, making it the side RT.
Avril cycles 10 km at x km/h and then 14 km at y km/h. Express the time for the journey as a single fraction
Step-by-step explanation:
It is given that,
Avril cycles 10 km at x km/h and then 14 km at y km/h.
We need to express the time for the journey as a single fraction.
We know that,
Speed = distance/time
or
time = distance/speed
Here, total distance = 10 +14 = 24 km/h
Total speed = x+y
So,
[tex]t=\dfrac{24}{x+y}[/tex]
Hence, this is the required solution.
Tony drives 2 times the hours that Monique does. Tony and Monique drive for a total of 12 hours.
How long did each person drive?
Answer:
so the answer would be he drives 8 hrs she drives 4 which equals 12
Step-by-step explanation:12 divided by 2 is six so then u take away 2 from moniques hrs and add them to tonys and u get 8 for him and 4 for her
One slice of cheese pizza contains 350 calories. A medium-size orange has one-fifth that number of calories. How many calories are in a medium-size orange?
Answer:
62
Step-by-step explanation:
is each statement true or false. if false make correct statement
A.1/2=2/4
B.1/4=3/8
c.2/3=3/6
d.4/8=1/3
e.6/12=1/2
Answer:
Look below
Step-by-step explanation:
A is TRUE
B is FALSE : 1/4 = 2/8
C is FALSE : 2/3 = 4/6
D is FALSE : 4/8 = 1/2
E is TRUE
Hope this helps :)
Two athletes practice for a marathon by running back and forth on an 11-mile course. They start running simultaneously, one at a speed 2 mph faster than the other's speed. How fast does each run if they meet 1 hour 6 minutes after starting? (The faster runner is already returning at this point.) How far from the starting point do the runners meet?
Answer:
Faster runner speed: 11 mph
Slower runner speed: 9 mph
Distance from starting point: 9.9 miles
Step-by-step explanation:
Let the slower runner speed be: x
Faster runner speed: x+2
1 hour 6 minutes = 1.1 hours
Slower: 1.1(x) = 1.1x miles
Faster: 1.1(x+2) = 1.1x+2.2 miles
This means that the faster runner had gone 2.2 miles more than the slower runner.
1.1x + 2.2 > 11 miles (This is true as we know the faster runner is coming back from the 11 mile run)
1.1x > 11 - 2.2 miles
1.1x > 8.8 miles
x > 8.8 / 2.2 miles
x > 8 mph
1.1x < 11 miles (we know this is true as the slower runner has to have gone less than 11 miles as the faster runner met him on his way back)
x < 11 / 1.1 miles
x < 10 miles
8 < x < 10
Although x could be any number including decimal between 8 and 10, the obvious first answer would be 9. However we need to check if this answer is correct.
Slower runner distance to the end:
1.1(9) = 9.9 miles
11 - 9.9 = 1.1 miles
Faster runners distance from the end (when coming back)
1.1(9+2) = 1.1(11) = 12.1 miles
12.1 - 11 = 1.1 miles
The speeds 9 mph and 11 mph are now proven to be the right speeds. Using our equation before, we can figure out the distance from the starting point that they meet at. This is just how far the slower runner has gotten. So, 1.1(9) = 9.9 miles from the starting point
2.5d + 7.25 = 1 + 3.75d solve for d
Answer:
5
Step-by-step explanation:
Subtract 1 from both sides. The equation becomes 2.5d + 6.25 = 3.75d
Subtract 2.5d from both sides. The equation becomes 6.25 = 1.25d
Divide 1.25 from both sides. You get 5 = d
Please help giving 30 pointss
Answer:
Your not giving 30 points ??
Step-by-step explanation:
Does anyone know?????
Subtract. Write your answer in simplest form.
5 3/4 - 2 11/12
Answer:
Convert the mixed numbers to improper fractions, then find the LCD and combine.
Exact Form:
17
6
Decimal Form:
2.8
¯
3
Mixed Number Form:
2
5
6
Step-by-step explanation:
Answer:
2 5/6 is your answer
Step-by-step explanation:
5 3/4 - 2 11/12
23/4-35/12
(23×3-35)/12
34/12
2 5/6
in a science class, 18 student read physic, 25 read mathematics, 23 read chemistry, 9 read physic and mathematics, 10 read mathematics and chemistry and 6 read physic and chemistry. if there are 50 student altogether and 5 student did not read any of the three subject.how many students read .(1) all three subject (2)only mathematics (3) chemistry and mathematics (4) physic and chemistry but not mathematics
Answer:
18+25+23=46 multiply by 6=27+50=77 multiply by 5=405
Step-by-step explanation:
round off 174 to the nearest hundred
Answer: 200
Step-by-step explanation:
174 rounded to the nearest hundred is:
200
When rounding to the nearest hundred, like we did with 174 above, we use the following rules:
A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.
B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.
C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.
pls mark brainliest!
Answer:
200
Step-by-step explanation:
Since I helped you can you help me? Go to my most recent question and try to answer it plzzz
HALP MA PLS!!!!!!!!!!!!!!!!!!!!!!
Answer:
48 dollars.
Step-by-step explanation:
If you look up "40 percent off of 85" you'll get 48.
Answer:
$48
Step-by-step explanation:
First, you must get the original price (which is $85 in this case) and multiply 40% or convert it to 0.40. So if you multiplied 85 by 0.40 correctly you should get 34. Then you would subtract 34 from 85. So the answer would be $48. This is called a markdown
2.25 divided by 5.58
Answer:
0.4032258
Step-by-step explanation:
Pls Anwer will give 15 points!!!!!!
Find the value of x.
Answer:
RSM? Anyway. 40º FOR SURE. Remember the degrees sign! :D
Step-by-step explanation:
x = 180º - 75º - 65º
x = 40º
This is because the 75º angle is the same throughout the whole side. It can't change because it's a T R I A N G L E. Really hope this helps!!
I need both answers
Answer:
10mn -35m
8rs-2r^2+16r
they are in order.
Answer:
1, 10mn - 35m
2, 8rs - 2r^2 + 16r
Step-by-step explanation:
The ingredients for your braised ribs cost $11.32. You sell it for $20. What is
your contribution margin?
Answer:
.03472
Step-by-step explanation:
take sell price $20. subtract cost of 11.32 which equals 8.68. then divide 8.68 by the sell price $20
The formula for contribution margin is the sales price of a product minus its variable costs. In other words, calculating the contribution margin determines the sales amount left over after adjusting for the variable costs of selling additional products.
Based on the cost of ingredients and the amount the braised ribs are sold for, your contribution margin is $8.68.
The Contribution margin the difference between the variable costs of a venture and its selling price:
= Selling price - Variable cost
The selling cost is $20 and the variable costs are $11.32.
Contribution margin is therefore:
= 20 - 11.32
= $8.68
In conclusion, your contribution margin is $8.68.
Find out more at https://brainly.com/question/7986902.
Is four sixth greater than four ninths?
Answer:
yes because the high number you go the smaller you pieces the low you go the bigger hope this helped
Step-by-step explanation:
calculate the area of the regular
Pentagon below 11.8 and 8.1
A:164.025
B:238.95
C:351.78
D:477.9
Answer:
we cant see the numbers in the picture