Step-by-step explanation:
hey the sentence isnt visible
Find the measure of each interior angle of the regular polygon.
What's Ali's average speed on her walk to school if she walks halfway at 2mph and runs the rest of the way at 7mph?
Answer:
s = 28/9
Step-by-step explanation:
d/(7 x 2) + d/(2 x 2) = d/s
d/14 + d/4 = d/s
18d/56 = d/s
18/56 = 1/s
s = 28/9
The average speed is 28/9.
What is Average speed?Average speed is the mean value of the speed of a body over a period of time. The formula for average speed is needed since the speed of a moving body is not constant and varies across a period of time. Even with varying speed, the values of total time and the total distance covered can be used, and with the help of the formula for average speed, we can find a single value to represent the entire motion.
Example
Using the average speed formula, find the average speed of Sam, who covers the first 200 kilometers in 4 hours and the next 160 kilometers in another 4 hours.
To find the average speed we need the total distance and the total time.
Total distance covered by Sam = 200Km + 160 km = 360 km
Total time taken by Sam = 4 hour + 4 hour = 8 hour
Average Speed = Total distance covered ÷ Total time taken
Average Speed = 360 ÷ 8 = 45km/hr
The average speed of a body is equal to the total distance covered, divided by the total time taken. The formula for average speed is given as:
Average Speed Formula:
Average Speed = Total distance covered ÷ Total time taken
Given:
halfway at 2mph and runs the rest of the way at 7mph
d/(7 x 2) + d/(2 x 2) = d/s
d/14 + d/4 = d/s
18d/56 = d/s
18/56 = 1/s
s = 28/9 mph
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brainlest if it’s right
What are chris's errors?
Length of part A:-
9+2+3+19+615units or 15inLength of path B
1+2+1+1+2+6+114inNow convert to miles
Path B:-
14/4=3.5miPath A:-
15/4=3.7inChris may made error in decimals
Actual difference is 0.2 miHe may removed 0 from left so he got 2help a girl out it’s 7th grade math
Step-by-step explanation:
height(h) = 12
slant height (l) = 15
side(a) = 18
TSA of pyramid = a^2 + 2al
= (18)^2 + 2* 18*15
= 864m^2
Fill in the blank spaces please.
PART A
If 4 pounds = 10 dollars...
4/2 = 2
10/2 = 5
So for 2 pounds, it would cost $5.00
Now for the 1 pound one
4/1 = 4
10/4 = 2.5
For the 1 pound one, it would cost $2.50
PART B
We know that 4 pounds = 10 bucks
Since 1 is 1/10 of 10 (in the cost section), we have to apply this to the pounds section. 4/10 = 0.4. Therefore, $1 = 0.4lb
Now for the last blank...
Since $1 = 0.4, we multiply that by 9. 0.4 x $9 = 3.6lb
HOPE THIS HELPED
WILL CHOOSE BRAINLIEST. Which statement is true?
Answer:
C
Step-by-step explanation:
Alternate interior angles
negative decimals on the number line 7
Answer: Point A because it is between -5.85.
Step-by-step explanation:
The first three terms of an arithmetic sequence are as follows.
Answer:
16,20
Step-by-step explanation:
As shown, you add four by each.
4+4=8
8+4=12
So, 12+4=16
16+4=20
Answer:
16 and 20
Step-by-step explanation:
In the arithmetic squence, we can tell that 4 is being added to each term.
Thus, we obtain the following rule:
4x [Where "x" is the xth term]To find the next two terms in the sequence, we need to determine the fourth and fifth term of the sequence. Let us substitute the "4" and "5" in the rule to determe the next two terms in the sequence.
Determining the 4th term of the sequence:
⇒ 4x
⇒ 4(4)
⇒ 16
Determining the 5th term of the sequence:
⇒ 4x
⇒ 4(5)
⇒ 20
Thus, the next two terms are 16 and 20.
WILL CHOOSE BRAINLIEST!!!
Answer:
am i suppose to find x??
Step-by-step explanation:
What property would you use for this 4x+2(x-3)=4x+2x-11(I solved it but can't remember the name) It has no solution.
Step-by-step explanation:
I think the property I would use is a reflective property
Nicole and Ian generate two patterns. Nicole uses the rule multiply by 3 then add 2 starting with 1. Ian uses the rule add 1/2 then multiply by 2 starting from 0. Complete the table to show the numbers in each pattern. Then create the ordered pairs.
Answer:
Nicole: 1, 5, 17, 53, 161, 485
Ian: 0, 1, 3, 7, 15, 31
Pairs: 1,0- 5,1- 17,3- 53,7- 161,15- 485,31
Step-by-step explanation:
The coordinate pairs of Nicole and Ian's rule are (5,1),(17,3),(53,5),(161,10),(485,20)
What is coordinate?A coordinate is a system that uses one or more number to show the position of the points. It is in (x, y) form where x shows value on x axis and y shows value on y-axis.
How to determine coordinates?We have been given that Nicole's rule is multiplied by 3 then add 2 starting with 1.
Values of Nicole's rule are 5,17,53,161,485.
Ian's rule is given as add 1/2 then multiply y 2 starting from 0. The values will be:
1,3,5,10,20.
Hence the coordinates are (5,1),(17,3),(53,5)(161,10),(485,20).
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Question 1) y=2/3x+1
Please answer both
Question 2) y= 3/2x + 1
Answer:
y= 2/3 x +1
the slope is 2/3
the y intercept is (0,1)
y= 3/2 x +1
I believe this is 4???
this math is too hard for me
The answer to your question
1=105
2=75
Here is an inequality: -2x > 10.
List some values for x that would make this inequality true.
How are the solutions to the inequality -2x >/ 10 different from the solutions to -2x > 10? Explain your reasoning.
Answer:
-20,-30,-40,-44.......
There are infinite solutions.
Step-by-step explanation:
A negative multiplied by a negative is a positive. So that would make the answer positive. You can uses any negative number above 6.
Answer:
There are infinite solutions.
Step-by-step explanation:
A system of linear equations can have infinite solutions if the equations are equivalent. This means that one of the equations is a multiple of the other. It also means that every point on the line satisfies all of the equations at the same time.
help pls! brainlist if u help
Answer:
(-2, -8)
(-1, -1)
(1, 1)
(2, 8)
Have an amazing day!
Please rate and mark brainliest!
(Only the top question!) 100 points!
Answer: 5,733.6
Step-by-step explanation:
337.8 x 17 = 5,742.6
5,742.6 - 9 = 5,733.6
Did I do it right or is it wrong?
Answer:
The answer is 5733.6
Step-by-step explanation:
The ratio 1331 : x is equivalent to the ratio [tex]x^{2} : 1331[/tex]. what is the value of x?
Answer:
121
Step-by-step explanation:
Set up the equation 1331/x=x^2/1331
Cross multiply and simplify the answer.
What is the average rate of change over the interval 2 ≤ x ≤ 4?
Answer:
:2.50:The average rate of change over the interval −2≤x≤2 is:(f(2) − f(-2)) / (2 − -2)
Step-by-step explanation:
A rate of change formula is used to calculate the rate which describes how one quantity changes in relation to the change in another quantity
Are multiplication and division of unit fractions related? Describe the relationship you see. BRAINLIEST HERE
Step-by-step explanation Hope this help a'lot
Multiplication and division both need to have a common denominator or else you would get an incorrect answer. Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators."
Calculate the average (arithmetic mean) of the list of numbers shown in the table. (rounded to the nearest tenth A) 10.1 B) 11.0 C)11.1 D)12.3
Answer:
C.
Step-by-step explanation:
When we add up all the numbers we get 111 then we divide it by 10 which gives us 11.1. since we have no value to round to the tenths place, the answer stays the same.
What is the peremeter and area of the photo below, also please show work .
Answer:
AA=216
PP=30
Step-by-step explanation:
Which statement below is true of the two figures?
Answer:
B
Step-by-step explanation:
If you are not altering the triangle in any way and just moving it (translating), they should be the same size and shape. Thus, both triangles are similar (the same shape) and congruent (equal to each other)
The resting pulse rates were recorded for 16 boys in gym class before they exercised. The line (dot) plot here shows the results. What is the range of the pulse rates?
2
6
4
5
Answer:
6
Step-by-step explanation:
The range of numbers is calculated by subtracting the smallest number from the largest one. So here, the smallest number is 79 and the largest is 85.
So, 85 - 79 = 6
Answer:
6
Step-by-step explanation:
What would the coordinate pair be?
Rule 1: Multiply by 2 then add 1 starting from 1.
Rule 2: Divide by 2 then add 4 starting from 40.
Answer:
3 / 24 I could be wrong (Have a great day)
Brent is considering buying a new circular track for his model train. He estimates that the model's circumference is about 3 times the measure of the circle's diameter. With this information, Brent could derive the value of —
Group of answer choices
radius
length
width
area
Answer:
Answer is D or a
Step-by-step explanation:
__,__,80,64,51.2,40,96,...
Find the first two terms of the geometric sequence.
Answer:
125, 100, 80,64,51.2,40.96...
Step-by-step explanation:
y=[tex]\frac{4}{5}[/tex]x
So let's work backwards!
[tex]\frac{5}{4}[/tex](80)
=100
Then...
[tex]\frac{5}{4}[/tex](100)
=125
Hope this helps! :D
Answer:
125, 100
Step-by-step explanation:
Perhaps the terms of your series are supposed to be ...
__, __, 80, 64, 51.2, 40.96, ...
The common ratio is 64/80 = 0.8, so the recursive relation is ...
t[n] = 0.8×t[n-1]
__
Solving for the previous term, we find ...
t[n]/0.8 = t[n-1] . . . . . . divide by 0.8
or ...
t[n-1] = 1.25×t[n] . . . . . rearrange
Then the term previous to 80 is 1.25×80 = 100.
And the term previous to 100 is 1.25×100 = 125.
The first two terms of the geometric sequence are 125 and 100.
Which is bigger, 1.2 or 1.18 repeating
Answer:
[tex]beinggreat78~here~to~help.[/tex]
Your answer would be that 1.2 is bigger.
Why is that the case?This is the case because the tenths place, the decimal farthest to the left, is greater than the compared tenths place, which has a 1
1 is greater than 2
With that information, 1.2 is bigger.
Comparing the two decimal approximations, we can see that 1.2 is bigger than 1.18 repeating (1.1818).
To compare 1.2 and 1.18 repeating (1.181818...), we can first convert 1.18 repeating to a fraction.
Let x = 1.181818...
Now, multiply x by 100 to remove the repeating decimal:
100x = 118.181818...
Subtract x from 100x to eliminate the repeating part:
100x - x = 118.181818... - 1.181818...
99x = 117
x = 117 / 99
Now, we simplify the fraction:
x = 13 / 11
Now that we have both numbers in decimal form, we can compare them:
1.2 ≈ 1.2 (rounded to one decimal place)
1.18 repeating = 13 / 11 ≈ 1.1818 (rounded to four decimal places)
Comparing the two decimal approximations, we can see that 1.2 is bigger than 1.18 repeating (1.1818).
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Please! I really need some help! Do you understand 8th Grade math?
Answer:
The values that are in the correct spots are: 82, 62, 163 and 300
Step-by-step explanation:
There are 144 boys in total. We know that 82 attended the fall fling, so if we do 144-82 we know that 62 boys attended the spring social, therefore the vaules 82 and 62 are in the correct spots. We know that out of 156 girls, 75 attended the spring social. 156-75=81. The values 75 and 81 are in the wrong spots, therefore they are not correct.
82 boys + 81 girls at the fall fling = 163 total students at the fall fling, therefore 163 is also in the correct spot.
62 boys + 81 girls at the spring social = a total of 137. The chart says the total is 143 which is incorrect.
156 total boys plus 144 total girls = 300 total students, therefore 300 is in the correct spot.
Answer:
The values that are in the correct spots are: 82, 62, 163 and 300
Step-by-step explanation:
The simple answer
pls help! will give brainliest to whoever answers first correctly! (70 points)
Answer:
#1
Step-by-step explanation:
I am just guessing but its probably #1
Answer:
the answer is the 1st one
Step-by-step explanation: