Answers
Answer:
558
Step-by-step explanation:
The sum of the first n numbers is ½n(n + 1)
which is the left most number in each row number n
so finding the row containing 526
½n(n + 1) > 526
½n² + ½n > 526
n² + n > 1052
n² + n - 1052 > 0
n > (-1 + √(1² - 4(1)(-1052))) / 2(1)
n > 31.938
so 526 is almost to the end of the 32 row.
The end of that row is ½(32(33)) = 528
so 526 resides two spaces to the right of 528
The end of the row below it, row 33, is ½(33)(34) = 561
As each row is one number longer than the previous row, we count back
2 + 1 = 3 numbers from the end to find what is under 526
561 - 3 = 558
Related Questions
Two trains leave stations 420 miles apart at the same time and travel toward each other. One train travels at 65 miles per hour while the other travels at 85
miles per hour. How long will it take for the two trains to meet?
Do not do any rounding.
Answers
Answer:
2hr 48 minutes
Step-by-step explanation:
65t + 85t = 420
150t = 420
t = 2 120/150 = 2 4/5 = 2hr 48 minutes
Time taken by two trains to cover 420 miles is 2hr 48 minutes.
Given, that two trains are travelling towards each other.
Relation between speed, time and distance:
Distance = Speed × Time
When the two trains are travelling towards each other the speeds of two trains are added.
When the two trains are moving in same direction then the relative speed is difference of the two.
So, here the trains are moving towards each other.
65t + 85t = 420
150t = 420
t = 420/150
t = 42/15
t = 2hr 48 minutes
Therefore total time required by two trains to meet is 2hr 48 minutes.
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What is the slope of the linear function graphed
below?
Answers
Answer:
y=2x+2
Step-by-step explanation:
The slope of the function is going up by 2 every time.
The measure of angle STV is 117°. What is the measure of angle UTV
Answers
Answer:
117 - 86 = 31°
The answe is 31
Louise had 425 marbles. She sold them in bags of 25. How many bags of
marbles did Louise have to sell? ?
Answers
Answer: 17 bags
Step-by-step explanation:
425/25= 17
Find k if X=2 and y=1 is a solution of 2x-8y+k/2=0
Answers
Answer:
k=2
Step-by-step explanation:
2x-8y+k/2=0
puting the values of x and y
2*2-8*1+k/2=0
4-8+k/2=0
-4+k/2=0
k/2=4
sing changes if side changed
k=4/2
k=2
We first substituted the X and Y in the equation, so 2 instead of X and 1 instead of Y.
Then I moved the K to make it the subject of the equation by algebra which gave me a -K, but I want k not negative k so I multiplied everything by -1 because, -1 × -1= +1 so K=2.
Help pleaseeeeeeeeeeeeeeeeee
Answers
Answer:
Step-by-step explanation:
22
A plumber charges 1/4 of the cost of materials as a labor fee. If the materials for the current job cost $130.00, how much will the plumber charge the client?
Answers
Answer:32.5
Step-by-step explanation: i used a calculator
Answer:
$162.50
Step-by-step explanation:
******Please help me help please help me ******
Answers
Answer:
36
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
The temperature of a city steadily drops during the day until it is half of what it was at the beginning of the day. It then decreases by an additional 6.8ºF after the sun goes down. The temperature at the end of the day is −3.1°F.
What was the temperature at the beginning of the day?
Enter your answer in the box.
ASAP PLZZ
Answers
Answer:
7.4
Step-by-step explanation i took the test
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
x - x/2 - 6.8 = -3.1
x = 7.4
The temperature at the beginning of the day was 7.4°F.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
The temperature at the beginning of the day = x
The temperature during the day = x/2
The temperature after the sun goes down = 6.8°F
The temperature at the end of the day = -3.1°F
Now,
We can write an expression as,
x - x/2 - 6.8 = -3.1
x - x/2 = -3.1 + 6.8
x/2 = 3.7
x = 7.4°F
Thus,
The temperature at the beginning of the day was 7.4°F.
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solve pls brainliest
Answers
Answer:
7.5 < 7.5061 < 7.56 < 9.213
Step-by-step explanation:
A landscape supply business charges $30 to deliver mulch. The cost of the mulch is $23 per cubic yard.
Vrite and solve a linear equation to find the cost of having 8 cubic yards of mulch delivered to a site.
Answers
Answer:
209
Step-by-step explanation:
CAN Someone PLS HELP ME PLSSSSSSSSSSSS
Answers
Answer: where is the rest of the problem
Step-by-step explanation:
-$107.85
how you do the first one
Answers
I HOPE IT WILL HELP YOU.
Thank you.
What is the opposite of -1.2
Answers
Answer:
1.2
Step-by-step explanation:
it's so easy it's 1.2
Answer:
The opposite of -1.2 is 1.2
The opposite of a negative number is always a positive number and vice versa.
Hope this helps you!
~Just a joyful teen
[tex]GraceRosalia :)[/tex]
find c. 2cm 15 degrees 105 degrees C= [?]cm
Answers
Answer:
the answer is 122cm
Step-by-step explanation:
105cm+15cm+2cm=122cm
Can someone pls help me plsss
Answers
Answer:
the first one
Step-by-step explanation:
1/2 and 1/5 common denominator is 10
DO NOW: What is the surface area of the cube? 4 in 4 in 4 in
Answers
Answer:
96 in^2.
Step-by-step explanation:
It has 6 surfaces each of area 4*4 = 16
Answer is 6*16 = 96.
three angles of a quadrilateral are 34°, 70° and 126°. find the measure of the fourth angle.
Answers
Answer:
130 will be correct answer
Step-by-step explanation:
The three angles are
34° 70° and 126°
we have to find fourth angle
let us consider fourth angle as X
The sum of quadrilateral is 360°.
So
34°+70°+126°+ x = 360°
130+X =360°
X = 360°-130°
X = 230°
Here we got the fourth angle
Evan used base-10 blocks to model the product of 3 and 0.51.
How can Evan use this model to determine the product?
Enter your answers in the boxes to correctly complete each statement.
Answers
Base 10 blocks are used to perform arithmetic operations.
To model the product of 3 and 0.51, Evan needs 3 copies of 5 tenths and 1 hundredths.
The expression can be represented as:
[tex]\mathbf{3 \times 0.51}[/tex]
Express 0.51 as 0.5 + 0.01
[tex]\mathbf{3 \times 0.51 = 3 \times (0.5 + 0.01)}[/tex]
0.5 means 5 tenths0.01 means 1 hundredths3 means that, the above blocks are needed in three places.Hence, Evan needs 3 copies of 5 tenths and 1 hundredths.
Read more about base 10 blocks at:
https://brainly.com/question/7621712
I am using remainders
Answers
Answer:
Step-by-step explanation:
Is there an image or question?
In the number 6855 is the 800 1/10 of 6000
Answers
Answer:
No
Step-by-step explanation:
Briarwood middle school chess club has 40 members 14 of the members are in seventh grade what percent of the members of the chess club in seventh grade
Answers
Answer:
i got you
Step-by-step explanation:
40% because it is
Subtract and simplify if can. Show all work !
7/12 - 3/4 = ?
Show steps.
Answers
Answer:
=- 1/6
Step-by-step explanation:
=7/12 - 3/4
=7-9/12
=-2/12
=-1/6
5 3/4 as an improper fraction
Answers
Answer:
23/4
Step-by-step explanation:
Answer:
A mixed number is an addition of its whole and fractional parts.
[tex]5 \frac{3}{4} [/tex]
Add:
[tex]5 \: and \: \frac{3}{4} [/tex]
To write 5 as a fraction with a common denominator, multiply by
[tex] \frac{4}{4} [/tex]
Combine:
[tex]5 \: and \: \frac{4}{4} [/tex]
Combine the numerators over the common denominator.
[tex] \frac{5.4 + 3}{4} [/tex]
Simplify the numerator.
Multiply 5 by 4.
Add 20 and 3.
[tex] \frac{23}{4} [/tex]
Step-by-step explanation:
Thanks!!!!!!
What is the system of measurement used most often in the United States?
customary
converted
metric
similar
Answers
what is the slope between these 2 points?
(-4,5) and (2,1)
-3/4
-2/3
3/8
-1/5
Answers
Answer:
b
Step-by-step explanation:
y2-y1/x2-x1
memorize this formula so you always know slope for 2 points given.
y is the second number in parentheses.
whichever you choose as y2 or y1, the x values will match those numbers as well.
(y2-y1) = (1-5)
(x2-x1) = (2+4)
(-4)/6
-2/3
please help algebra ii!
Answers
Answer:-4
Step-by-step explanation:we can easily see it on the graph
Choose the 3 correct answers please! ( Branliest )
Answers
Answer:
Option A,B,E are equivalent.
Step-by-step explanation:
What we are given: Expression
To find : Which expressions are equivalent to given expression ?
Solution :
We solve the expression and check,
A) Yes it is equivalent.
B) Yes it is equivalent.
C) No it is not equivalent.
D) No it is not equivalent.
E) Yes it is equivalent.
Therefore, Option A,B,E are equivalent.
Step-by-step explanation:
Hope this Helps =)
Answer:
A , C , EStep-by-step explanation:
Answer A :[tex] - 30(3 + 2w) \\ - 30(3) - 30(2w)\\ - 90 - 60w[/tex]
It's equivalent. ✔️
Answer B :[tex]( - 9 - 6w) - 10 \\ - 9 - 6w - 10 \\ - 19 - 6w[/tex]
It's not equivalent. ✖️
Answer C :[tex] - 3(30 - 20w) \\ - 3(30) -3(20w) \\ - 90 - 60w \\ [/tex]
It's equivalent. ✔️
Answer D :[tex](6 + 4w) \times 15 \\ 15(6)+ 15(4w) \\ 90 + 60w \\ [/tex]
It's not equivalent. ✖️
Answer E :[tex] - 20(4.5 + 3w) \\ -20(4.5) -20(3w) \\ - 90 - 60w \\ [/tex]
It's equivalent. ✔️
please help i'll mark big brain
Answers
Answer:
alternate angles are equal
Step-by-step explanation:
Figure ABCD is transformed to figure A prime B prime C prime D prime, as shown: A coordinate grid is shown from negative 5 to 0 to 5 on both x -and y-axes. A polygon ABCD has A at ordered pair 1, 3, B at ordered pair 3, 4, C at ordered pair 2, 1, D at ordered pair 1, 1. A polygon A prime B prime C prime D prime has A prime at ordered pair negative 3, 3, B prime at ordered pair negative 5, 4, C prime at ordered pair negative 4, 1, D prime at ordered pair negative 3, 1. Which of the following sequences of transformations is used to obtain figure A prime B prime C prime D prime from figure ABCD? (1 point) Reflection about the x-axis followed by a translation to the right by 2 units Reflection about the y-axis followed by a translation to the left by 2 units Counterclockwise rotation by 90 degrees about the origin followed by a translation to the right by 2 units Counterclockwise rotation by 90 degrees about the origin followed by a translation to the left by 2 units
Answers
Answer:
i need this answer too
Answer:
The appropriate choice is the 2nd one ...
... Reflection over the y-axis followed by a translation down by 5 units.
Step-by-step explanation:
The transformed figure has the opposite orientation (A'B'C'D' is counterclockwise, whereas ABCD is clockwise), so a reflection is involved. The sgment C'D' is still at the bottom, as is CD, so the reflection must be across a vertical line.
In the attached, the light-blue figure A''B''C''D'' shows the reflection of ABCD across the y-axis. It is easy to see that figure A'B'C'D' is a translation of that 5 units downward.
The appropriate choice is the 2nd one ...
... Reflection over the y-axis followed by a translation down by 5 units.