You can also subtract decimals by writing the problem vertically, lining up the decimal points to keep track of place values. The problem to the right is partially completed. Explain the regrouping shown.
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Answer:
Step-by-step explanation:When adding or subtracting decimals, it is essential that you pay attention to the place value of the digits in the numbers you are adding or subtracting.
Related Questions
Find the missing length.
Answers
Answer:10
Step-by-step explanation: w x l = a 155/15.5=10
Evaluate and solve for the variable and graph the resulting solution set, showing ALL work.
a) x/4 > 10
-------|--------|-----------|--------|
b) -5g < 15
---|-------|--------|---------|---------|
c) t - 4 ≤ -3
--------|---------|-----|------|
d) 4d > -12
------|--------|--------|------
e) u + 12 ≤ 5
-------|---------|-------|----
f) j - 4 ≥ - 4
-------|--------|------|-------
Answers
At the beginning of spring, Sophia planted a small sunflower in her backyard. When it was first planted, the sunflower was 25 inches tall. The sunflower then began to grow at a rate of 3 inches per week. How tall would the sunflower be after 9 weeks? How tall would the sunflower be after
w
w
w weeks?
ONLY SOLVE FOR W NOT THE 9 WEEKS
Answers
Answer:
25+3w
Step-by-step explanation:
Since it started at 25 inches, you put 25.
And since every week it grows 3 inches it would be 3w.
So 25+3w
How many sides do 4 nonagons and 4 triangles have in all?
Answers
Answer:
Sorry for the late answer!
Step-by-step explanation:
A nonagon has 9 sides so 9 * 4 = 36
and a triangle has 3 sides so 3 * 4 = 12
add them together (36 + 12 = 48)
Your final answer will be 12, Hope this helps, and have a great day!
Nonagons have 9 sides.
If there are 4 nonagons, then you will multiply 9 and 4.
9x4= 36
Triangles have 3 sides.
If there are 4 triangles, then you will multiply 3 and 4.
3x4= 12
In total, you will need to add them (12+36)
12+36= 48
A salesperson works 40 hours per week at a job where she has two options for being paid. Option A is an hourly wage of $18. Option B is a commission rate of 8% on weekly sales. How much does she need to sell this week to earn the same amount with the two options?
Answers
The length of ribbons found at a seamstress are listed.
5, 8, 10, 12, 12, 19
What is the appropriate measure of variability for the data shown, and what is its value?
A. The range is the best measure of variability and equals 14.
B. The IQR is the best measure of variability and equals 4.
C. The mean is the best measure of variability and equals 11.
D. The median is the best measure of variability and equals 11.
Answers
The most appropriate measure of variability for this data set is the IQR,
Option B is the correct answer.
What is the interquartile range?An interquartile range is a measure of the difference between the upper and lower quartiles of a dataset.
W can find the values of the upper and lower quartile and median from a box plot.
The middle line is the median and the first line is the lower quartile and the last line is the upper quartile.
The formula used is Upper quartile - Lower quartile.
We have,
To determine the appropriate measure of variability for the given data, let's first calculate some descriptive statistics:
Mean: (5 + 8 + 10 + 12 + 12 + 19) / 6 = 11
Median: the middle value is 11, since there are an even number of values
Range: the difference between the maximum value (19) and the minimum value (5) is 14
Interquartile range (IQR): Q3 (the third quartile) is the median of the upper half of the data, which is (12, 12, 19), and Q1 (the first quartile) is the median of the lower half of the data, which is (5, 8, 10). Thus, Q3 = 12 and Q1 = 8, and the IQR is 12 - 8 = 4.
Now, we need to determine which measure of variability is most appropriate for this data set.
Option A suggests using the range, which is the difference between the maximum and minimum values.
The range is affected by outliers and extreme values, and in this data set, the value of 19 is significantly larger than the other values, which might make the range an unreliable measure of variability.
Option B suggests using the IQR, which is a measure of the spread of the middle 50% of the data.
The IQR is less affected by extreme values than the range and is often preferred when there are outliers or skewed distributions.
Option C suggests using the mean, which is a measure of central tendency, not variability.
Option D suggests using the median, which is also a measure of central tendency, not variability.
Therefore,
The most appropriate measure of variability for this data set is the IQR,
Learn more about the interquartile range here:
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The figure shows two lines cut by a transversal. What value of x shows that the lines are parallel? Explain your answer.
Answers
Answer-
X=24
Step-by-step explanation-
2x+4 is an alternate angle to the angle opposite on the top left to 5x+8
Which means (2x+4)+(5x+8)=180
So add both together to get
7x+12= 180
Then subtract 12 from 180
7x=168
then divide 168 by 7 to get
X= 24
This assignment is due soon! If someone can help me answer this it would be amazing. It is about Transversals of Parallel lines: name angle pairs.
Answers
Angle:LKN
Hope this helps:)
In 2020, Forest A had an area of about 4000 acres and Forest B had an area of about 3600 acres. Researchers expect deforestation to cause the area of Forest A to decrease at a rate of 105 acres per decade and the area of Forest B to decrease at a rate of 30 acres per decade. In what year do they expect the areas of the forests to be the same?
Answers
Answer:
In about 2073, 3440 acres
Step-by-step explanation:
Determine the equation for each forest. Forest A: y=-105x+4000 Forest B: y=-30x+3600There are a number of ways to solve a system of equations, but for this we are first going to solve for x when -105x+4000=-30x+3600. In this case, x=5 1/3.Then, we are going to plug 5 1/3 in as x into one of our equations. To double check you have this right, you may do both. If our equation is y=-30(5 1/3)+3600, then y=3440.Add 5 1/3 decades or about 53 years to 2020.Therefore, they expect the area of the forests to be the same in about 2073. At this time, both will have an area of about 3440 acres.
In 2073 the areas of the forests to be the same.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
Forest A had an area of about 4000 acres and Forest B had an area of about 3600 acres.
If Forest A to decrease at a rate of 105 acres per decade and the area of Forest B to decrease at a rate of 30 acres per decade.
let the number of decades occur be x
So, the equation is
4000 - 105x= 3600 - 30x
400 = 75 x
x= 5.33
x= 53.3 years
Hence, In 2073 the areas of the forests to be the same.
Learn more about equation here:
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Eli ran 3/4 of a mile. Every 1/8 of a mile, he jumped over a hurdle. There was a final (extra) hurdle at the end of the 3/4 mile. How many hurdles did he jump over.
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Answer:
7
Step-by-step explanation:
3/4 is equivalent to 6/8. He jumped once for every 1/8 mile and there was an extra hurdle at the end.
Write as the opposite of a square root
-2√3
-3√5
-7√a
-0.2√b
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Answer:
[tex] \sqrt[6]{512} [/tex]
Why did the spelling and grammar checkers in Word miss the errors highlighted in yellow?
3-5 sentence
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Answer:
Spelling and grammar missed them because the highlighted errors are actually words that are not in the right place and when you misspelled them, it turned into a word in the incorrect place.
Step-by-step explanation:
Which expression represents the following?
Two more than five times the difference of eleven and eight
1. 2+5(11-8)
2. (2+5)x(11-8) incorrect
3. 2+5(11+8)
4. (2+5)x11-8
Answers
HELP MEEEEE <3
Rewrite 17/40 as a decimal number.
Round 10 7/25 to the nearest whole number.
Rewrite 0.84 as a fraction in lowest terms.
Rewrite 11 5/12 as a decimal number.
Rewrite 5.75 as a mixed number in lowest terms.
Which of the following is closest to?
1
0
1/2
Rewrite 0.007 as a fraction in lowest terms.
Round each mixed number to the nearest whole number and then estimate the difference.
9 5/12 - 3 4/5
Find the elapsed time between 1:28 p.m. and 4:05 p.m.
Find the elapsed time between 7:13 p.m. and 3:45 a.m.
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Answer: 0.425 is a decimal number of 17/40 7.25 to the nearest thousands is 0 7.25 to the nearest hundreds is 0 7.25 to the nearest tens is 10 Check and cancel the factors of 84 and 100 if any factors in the numerator and denominator can be cancelled each other:
=(21 x 4)
(25 x 4)
84/100
=21/25
0.84 as a fraction is equal to 21/25
First things first, if you don't know what a numerator and a denominator are in a fraction, we need to recap that: Here's the little secret you can use to instantly transform any fraction to a decimal: Simply divide the numerator by the denominator: That's literally all there is to it! 5/12 as a decimal is 0.41666666666667, but just write 0.4. Next 5.75=
5 75/100
divide top and bottom by 25
5 3/4
0.007 as a Fraction Result: 0.007 as a Fraction equals 7 / 1000. Scroll down for detailed steps on how to convert 0.007 into a fraction.
in simplified form is 18.81. This when rounded to whole number becomes 19.
Similarly, in simplified form is 8.375 and when rounded to nearest whole number, it becomes 8.
Now, the difference will be 19-8=11
Answer: PLEASE GIVE ME BRAINLIEST I WORKED SO HARD ON IT
1. [tex]\frac{17}{40}[/tex] = 0.425
2. [tex]10\frac{7}{25}[/tex] = [tex]\frac{257}{25}[/tex] = 10.28 = 10 (rounded)
3. 0.84 → [tex]\frac{0.84*100}{1*100} = \frac{84}{100}[/tex] = [tex]\frac{21}{25}[/tex] (lowest terms/simplest form)
4. [tex]11\frac{5}{12} = \frac{137}{12}[/tex] = 11.41
5. 5.75 → [tex]\frac{5.75*100}{1*100} = \frac{575}{100}[/tex] = [tex]\frac{23}{4}[/tex] (lowest terms/simplest form)
7. 0.007 → [tex]\frac{0.007*1000}{1*1000} = \frac{7}{1000}[/tex] (lowest terms/simplest form)
8. [tex]9\frac{5}{12}[/tex] - [tex]3\frac{4}{5}[/tex] → [tex]\frac{113}{12} - \frac{19}{5}[/tex] → 9.41 - 3.8 → 9-4 = 5 (the difference)
9. The elapsed time between 1:28 p.m. and 4:05 p.m is 2 hrs & 37 min.
10. The elapsed time between 7:13 p.m. and 3:45 a.m is 8 hrs & 32 min.
Please help me im desperate
Answers
Rocket A was higher after 35 seconds.
I believe the slope of rocket B is 16/7.
Rocket A was higher after 35 seconds.
I believe the slope of rocket B is 16/7 hope it helps
Isaiah randomly surveyed 20 of his classmates to find out how many cousins they have. The results of the survey are shown in the table. Survey Based on the results in the table, which statements about a randomly chosen classmate of Isaiah's are true? Select TWO correct answers.
Answers
Answer:
Couldn't tell you if I wanted to
Step-by-step explanation:
You didn't provide all of the necessary information. You're missing the graph and it seems like this is supposed to be a multiple choice question. Therefore, I cannot help you and neither can anyone else.
The person that is the most kind gets a brainiest award
P.S: evaluate this function: f(x) = 3x^2+5x+6
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Explanation:
This is unable to be evaluated due to the function not being stated. X has to be a number for us to be able to solve the equation and for It to be evaluated. 3x to the second power is gonna stay that since there isn't another power integer on 5x and 6 is staying like that since there is nothing for it to be added or subtracted to.
So the answer is simply:
3x^2+5x+6
4 to 7 please helpppppppppppppppp thanks
Answers
Step-by-step explanation:
4. P=2*(5+7)=2*12=24 ft
S= 5*7=35 ft
5. P=2*(3+8)=2*11=22 cm
S= 3*8=24 cm
6. P=2*10+12=20+12=32 m
S= 12*8/2=48 m
7. P=12+13+5=30 in.
S= 12*5/2=30 in.
someone please answer this for me before 2:20!! ty ^^
Which equation applies the associative property of multiplication?
Answers
Answer:
a c d
Step-by-step explanation:
The table shows the ratio between the pounds of apples and the total cost:
5 pounds of apples equals 15 dollars, 6 pounds of apples equals 18 dollars, and 7 pounds equals 21 dollars.
Find equivalent ratios when the pounds of apples are 1, 2, and 3. Explain how to plot the equivalent ratios on a coordinate grid from the origin.
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example (x, y) = (1, 3) or (5, 15)
On the coordinate grid x would be represented by the pounds of apples and y would be represented by the dollars
example (x, y) = (1, 3) or (5, 15)
Joelle can read 3 pages in 4 minutes, 4.5 pages in 6 minutes, and 6 pages in 8 minutes. Paxton can read 3 times as fast as Joelle. Which is the equation for the number of pages y that Paxton can read in x minutes?
A. y = 9/4x
B. y = 6/5x
C. y = 3/4x
D. y = 1/4x
Please show work
Answers
Answer:
C. y = 3/4x
Step-by-step explanation:
3 pages = 4 min
4.5 pages = 6 min
Paxton = Joelle×3
3/4 = 0.75 (Joelle reads 0.75 pages in 1 min)
Paxton = 0.75×3
C. y = 3/4x
for example if y=3 and x=4 than
3 = 3/4×4 3 = 0.75×4 (which equals to 3)
ANSWER QUICKK
Divide 4 11/16 by 1 1/4
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75/16 x 4/5
15/4 or 3 3/4 or 3.75
Answer:
411/44 or 9.340909091
help please it would be appreciated
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Answer:
C = 43.96
Step-by-step explanation:
3.14 ( pi) * d (diameter)
3.14 * 14 = 43.96
C = 43.96
This is a science question but I can't find science so yeah the article needs to be annotated and the questions on the sides answered ( I am asking for help because I am dyslexic and struggle reading and writing )
Answers
1. Choose two non-renewable
resources from the article and
explain why these are non-renewable.
Coal and Oil are two non-renewable energy resources. This is because they are fossil fuels and cannot be replaced by a natural process. Fossil fuels are available in limited amount and can be exhausted by human activities. Also, they can't be renewed fast enough. Therefore, they are considered as non-renewable resources.
2. Choose two renewable resources described in the article and explain why they are renewable.
Two renewable recourses are sunlight and wind. They are renewable as there will always be a constant supply of wind and sunlight. Wind can be used in wind turbines usually found in fields or in the middle of the ocean. Sunlight can be used for solar power, we get solar power by solar panels which can be found in fields or on some roofs. Sunlight and wind, are sources that are constantly being replenished making them renewable.
3. Why are some resources more available than others?
Some resources are more available in some areas more than others because of the way you find them. For example, fossil fuels and resources that have to be mined may be harder to find because of where they are underground and how spread apart they are. However, at the same time there may be a large amount of the resources if there has been volcanic activity.
subtract Mixed Numbers For 100 Points!
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Answer:
I think its b
Step-by-step explanation:
At a restaurant, hot chocolate can be purchased in two different cup sizes. A 12-ounce cup costs $4.80 and a 16-ounce cup costs $6.40.
Is the linear relationship between cup size and cost also proportional? Why or why not?
Yes, there is no constant of proportionality.
Yes, the constant of proportionality is 0.4.
No, the constant of proportionality is 0.4.
No, there is no constant of proportionality.
Answers
Answer:
Yes, the constant of proportionality is 0.4.
Step-by-step explanation:
[tex] \frac{4.80}{12} = \frac{48}{120} = \frac{2}{5} = .4[/tex]
[tex] \frac{6.40}{16} = \frac{64}{160} = \frac{2}{5} = .4[/tex]
Yes, the given relation is proportional with a constant of proportionality is 0.4 thus option (B) is correct.
What are the ratio and proportion?The ratio is the division of the two numbers.
For example, a/b, where a will be the numerator and b will be the denominator.
Proportion is the relation of a variable with another. It could be direct or inverse.
As per the given,
A 12-ounce cup costs $4.80.
The ratio of cost to ounce = 4.80/12 = 0.4
A 16-ounce cup costs $6.40.
The ratio of cost to ounce = 6.40/16 = 0.4
So constant of proportionality is 2.5.
Hence "Yes, the given relation is proportional with a constant of proportionality is 0.4".
For more information about ratios and proportions,
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Which of the following does not represent the shaded part below?
Answers
Answer:
c
Step-by-step explanation:
0.06=6/100
what is the sum of 2^2 + 8
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Hope this helps :)
2 to the power of 2 is 4.
8 + 4 is 12!
Which number line represents 30%?
Answers
Answer:
C
Step-by-step explanation:
30%=
30/100=
3/10=0.3
0.3<1, and is 3/10 of 1.
30%=
30/100=
3/10=0.3
3/10 of 1
Triangle XYZ has vertices X: (0,2) Y: (3,8), and Z: (6,2). Show that the triangle is isosceles by determining the length of each side.
Please help!!!!
Answers
Answer:
given below
Step-by-step explanation:
formula used= [tex]\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]
XY= [tex]\sqrt{(3-0)^2+(8-2)^2}[/tex] = [tex]\sqrt{9+36} =\sqrt{45}[/tex] (here x1=0, x2=3, y1=2, y2=8)
YZ= [tex]\sqrt{(6-3)^2+(2-8)^2}[/tex] = [tex]\sqrt{9+36} = \sqrt{45}[/tex]
ZX= [tex]\sqrt{(6-0)^2+(2-2)^2}[/tex] = [tex]\sqrt{36+0} = \sqrt{36}[/tex]
as you can see side XY=YZ=45
so triangle XYZ is an isosceles triangle
hope this helps :)