Answer:
-9
Step-by-step explanation:
Use the order of operations. Do these operations in this order:
ParenthesisExponentsMultiplicationDivisionAdditionSubtractionNote: when either multiplication and division, or addition and subtraction are there, go left to right.
Equation: -1 - 2 · {(-1) + 5}
Solve:
-1 - 2 · {(-1) + 5}-1 - 2 · {4}-1 - 8-9*Challenge*
Using the same method, see if you can solve this equation:
6 ÷ 2(1+2)
-Chetan K
Please help me!! I will give brainliest.
Answer:
2/3Step-by-step Solution:
Simply change the denominators such that both denominators are the same. Then, add the fractions to get your result.
1/2 + 1/6=> 3 x 1/2 x 3 + 1/6=> 3/6 + 1/6=> 4/6 = 2/3Hence, the solution is 2/3.
Answer:
[tex]\frac{4}{6}[/tex]
Step-by-step explanation:
[tex]\frac{1}{2} +\frac{1}{6}[/tex]
[tex]\frac{3}{6}+\frac{1}{6}[/tex]
[tex]\frac{4}{6}[/tex] ...........the denominator must be always kept 6 as briefed in the question.
[tex]\frac{2}{3}[/tex]
Five double-digit numbers We have five consecutive positive double-digit integers. If we swap places on the numbers in the largest number, the sum of the five numbers increases by 1 more than the mean of the original numbers. What is the lowest number?
Answer:
33Step-by-step explanation:
Let the numbers are:
x, x + 1, x + 2, x + 3 and x + 4Their sum is 5x + 10Their mean is (5x + 10)/2 = x + 2If we swap the digits on the largest number, the sum increases by 1 more than x + 2
We are looking for the number x + 4 = ab such that:
ba - ab = ab - 2 + 1ba = 2ab - 110b + a = 2(10a + b) - 110b + a = 20a + 2b - 18b = 19a - 119a = 8b + 1By trial method we get the solution:
a = 3, b = 7Since x + 4 = 37, the lowest number is:
x = 37 - 4 = 33Lets verify:
33, 34, 35, 36, 37The sum is:
5*33 + 10 = 175The mean is:
35Change the largest number tp 73 and find the sum again:
175 + (73 - 37) = 175 + 36 = 175 + 35 + 1The sum has increased by 1 more than 35
Latrice doubled her coin collection the first month, and then added 200 coins to her
collection the second month. Meagan added 85 coins to her collection the first week,
and then doubled her total the second week. Now Latrice and Meagan have the same
number of coins. Did they begin with the same number of coins
Answer:
No they did not start with the same number of coins (hope you don't need explanation tho)
2x - 2y = 14
x-y= 2
Solve Using Substitution
If you push a lawn mower across a yard in 10 seconds, how does the work done compare with pushing it across the same yard in 20 seconds
Which point has the coordinates (3,-2)
Answer:
B
Step-by-step explanation:
Since x is 3, you go 3 units right. Since y is -2, you go 2 units down.
i need help
help
……..
Answer:
3rd option, 3x-2y > 6
Step-by-step explanation:
by using 2 points from the line, for example, (0,-3) and (2,0) we can find the slope:
= (-3-0)/(0-2)
= -3/-2
= 3/2
we can see from the graph that the y-intercept is -3
the equation of the line, in slope-intercept form, is:
y < 3/2x - 3
by multiplying each side by -2 we will get standard form
3x-2y > 6
what is the equation of the line in slope-intercept form? that has a slope of -2/5 and passes through (15,-2)
Answer:
y=3x+11
Step-by-step explanation:
We have to write the equation of line which is passing through the point (−2,5) and parallel to the line y=3x+1. Hence, equation of straight line in point slope form is (y−5)=3(x+2) and in slope-intercept form is y=3x+11
If each side of a triangle measures 0.75 inches, what is the perimeter of the triangle?
Answer:
0.75+0.75+0.75=2.25 inches
triangles are equal.So add 0.75 three times and write the answer as I mentioned. Also you must do it according to the book.I mean like,you adds it 3 times because triangle is 3 sided and it's a equilateral triangle.
Are you in Grade 8? bcoz me too.
btw I hope this helps you..
Answer:
.75*3
Step-by-step explanation:
you can multiply or add .75 5hree times, it dont matter which. the perimeter of the triangle is 2.25
there are 102 teachers in a school of 3300 students find the ratio of the number of teachers to the number of students
Answer: 17:550
Step-by-step explanation: 102/3300 divide both numbers by 2 .
51/1650 divide both numbers by 3
Ok and I also need help on this one ! thank you if you can !
Answer:
try y[tex]\leq[/tex]3 and y[tex]\geq[/tex]x-5
Step-by-step explanation:
It's been a few years since I've had to solve one of these but here's what I remember:
USE THE GRAPH!!!!
-Use shading to find equation-
[tex]\leq[/tex] shades under the line
[tex]\geq[/tex] shades over the line
-Use lines to find numbers-
Y-Intercepts: where the line crosses the y-axis.
Slope: Rate in which the line inclines or declines.
***WARNING***
I very well could be incredibly WRONG, so be aware of that and check before taking someones word. However I hope this is right and it helps.
On a survey eight students reported how many minutes it takes them to travel to school here are there responses 9, 11, 3, 14, 14, 7, 14, 6 find the mean travel time for these students. if necessary round your answer to the nearest 10th
Hi!
The answer to your question is 9.75 minutes
Here is the math to prove it:
9+11+3+14+14+7+14+6=78
Now you will take 78 and divide it by 8
This is because when finding the mean you add all of the given number together and then divide them by the amount of number added together.
78/8=9.75
Thus, your answer is 9.75 minutes
I hope this helped!
Have a wonderful day/night!
God bless!
what is 2-2 equals to ?
Answer:
The answer is 0
Step-by-step explanation:
Answer:
2 - 2 = 0
Step-by-step explanation:
what do I get when I add 2+2
Answer:
22 Nah I'm kidding, it's 4
Step-by-step explanation:
This was fun
Answer:
Take two fingers and put two more fingers up and there your answer 4.
Дима и Саша выполняют одинаковый тест. Дима отвечает за час на 12 вопросов теста, а Саша — на 22. Они одновременно начали отвечать на вопросы теста, и Дима закончил свой тест позже Саши на 75 минут. Сколько вопросов содержит тест?
Answer:
Я думаю, что это 24, потому что 12 + 12 - это двадцать четыре, так как он закончил позже.
1. Which ratio is equivalent to 4:10?
Answer:
2:5
Step-by-step explanation:
2:5 because 4 divided by 2 = 2 and 10 divided by 2=5. So, 2:5
Slove for x
3x+4=7x-(x+17)
Answer:
7
Step-by-step explanation:
yeaaaaa thats the answer i dont feel like typing in the explantion its to long
which digit is in the trillions place in 12,345,678,900,000
Answer:
2
Step-by-step explanation:
Answer:
The answer is
→ 2
Step-by-step explanation:
Let's look at the number.
12,345,678,900,000
And were asked to find the digit in the trillions place in this number.
Well, if we say it by word, then it will be:
twelve trillion, three hundred and forty-five billion, six hundred and seventy-eight million, and nine hundred thousand
Well, since were trying to find the digit in the trillionth place, then 12 trillion cannot be correct because the digits are in the 10 trillionth place. Ignore the 1 and you can see a number 2 in the trillionth place.
Therefore, your answer is 2.
Hope this helped! :^)
list the sides in order from shortest to longest
Answer:
BC < AB < AC
Step-by-step explanation:
To evaluate the side lengths we first need to find the angle measures:
the sum of interior angle in a triangle is equal to 180
5x + 50 + 7x + 8 + 10x = 180 add like terms
22x + 48 = 180 subtract 48 from both sides
22x = 132 divide both sides by 22
x = 6
now the angle measure are
A = 50
B = 70
C = 60
The longest side is the one that sees the biggest angle so AC is the longest and BC is the shortest side length therefore we can list them from shortest to longest as follows :
BC < AB < AC
Evaluate the discriminant for x2-5x+4=0
help plz
Which ratio is not equivalent to the others,
3 to 1
6 to 3
9 to 3
12 to 4
Answer:
6 to 3
Step-by-step explanation:
3 to 1, 9 to 3, and 12 to 4 are all the same ratio as 3 to 1
7 times the sum of a number n, and 4
Hi!
"the sum of a number n and 4" - sum means adding, therefore it would be:
[tex]n+4[/tex]
Now, "7 times" - times would be multiplication, therefore it would be:
[tex]7(n+4)[/tex]
---------------------------------------------------------------------------------------------
Notice there are parentheses ( ) around [tex]n+4[/tex]We need this because it's 7 times the SUM, and if you do not have parentheses, by Order of Operations (PEMDAS), it would not be multiplying by the sum, it would multiply just 'n', and not the rest.
---------------------------------------------------------------------------------------------
For more examples, see:
https://brainly.com/question/15167202
https://brainly.com/question/13523562 (great explanation!)
https://brainly.com/question/16889590
(8,5) and (6,3)
what is the slope ?
Answer:
Step-by-step explanation:
Let,
[tex](x_1,y_1)=(8,5)\\(x_2,y_2)=(6,3)\\[/tex]
Using the formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m= \frac{3-5}{6-8} \\m=\frac{-2}{-2} \\m=1[/tex]
please help and show work, thank you smm
Write the next number 4,12,24,43
4,122,443
four million, one hundred twenty two thousand, four hundred fourth three
Use the magnitudes (Richter scale) of the 120 earthquakes listed in the accompanying data table. Use technology to find the range, variance, and standard deviation. If another value, 7.50, is added to those listed in the data set, do the measures of variation change much?3.28
2.78.
2.20
2.76
2.47
2.70
3.62
2.84
2.78
3.29
1.76
4.65
3.23
2.35
2.00
3.90
2.41
2.90
2.65
2.30
2.82
2.79
2.42
3.42
2.32
1.49
2.41
2.46
2.46
2.67
2.42
2.79
2.66
2.73
2.44
2.82
1.96
1.69
2.54
2.44
3.42
3.94
1.61
2.86
1.61
2.58
3.97
2.48
2.44
1.81
2.19
2.43
3.01
2.93
2.34
2.01
3.02
2.77
3.83
2.93
2.09
1.83
2.36
2.38
3.48
3.45
1.55
2.52
1.48
2.22
3.08
2.27
3.25
1.99
1.90
2.39
2.96
2.56
1.50
2.17
2.33
1.91
2.72
2.92
1.82
3.61
2.71
1.43
3.59
3.15
2.55
1.52
1.42
2.84
2.84
2.17
1.67
3.19
1.39
1.71
2.39
1.13
2.33
2.46
1.79
1.98
3.00
1.92
2.44
1.85
2.25
2.34
3.19
4.00
2.09
1.49
2.31
2.30
2.56
2.54
Answer:
2.90
Step-by-step explanation:
im not completly shous though
did i do this correctly? if i didnt what did i do wrong?
Answer:
Yes, I believe you did it correctly. :)
Step-by-step explanation:
The table below shows the number of customers that come eat lunch at a local deli each week.
Week Number of customers
1 50
2 45
3 60
4 40
5 70
6 35
7 80
8 ?
Based on the information, how many customers should the deli expect to serve during week 8?
A.) 30
B.) 50
C.) 70
D.) 90
Answer: D 90
Step-by-step explanation: all you have to do is keep counting and youll find out! Have a nice day hope this helps. and thats it have a fantastic day and morning everyone stay focused and always beleave you can get things right Yahuah bless you!
100 points
Multiply.
√8⋅√14⋅√21
Enter your answer, in simplest radical form, in the box.
Answer: [tex]28\sqrt 3[/tex]
Step-by-step explanation:
8 x 14 x 21 = 2352, so:
√8⋅√14⋅√21 = √2352
√2352 in simplest form is 28√3
I hope this helps!
Solve the system of equations −2x+y=12 and 7x-7y=-49x by combining the equations.
Answer:
x = 2 and y =16
Step-by-step explanation:
Method 1
Rewrite -2x + y = 12 to make y the subject:
Add 2x to both sides: y = 12 + 2x
Now substitute y = 12 + 2x into 7x - 7y = -49x and solve for x:
7x - 7(12 + 2x) = -49x
Multiply out the brackets: 7x - 84 - 14x = -49x
Collect like terms: 7x - 14x - 84 = -49x
Combine like terms: -7x - 84 = -49x
Add 7x to both sides: -84 = -42x
Divide both sides by -42: 2 = x
Therefore, x = 2
Now we have found the value of x, substitute this into y = 12 + 2x to find y:
y = 12 + (2 x 2)
= 12 + 4
= 16
Therefore, x = 2 and y =16
Method 2
Rewrite -2x + y = 12 to make y the subject:
Add 2x to both sides: y = 12 + 2x
Rewrite 7x - 7y = -49x to make y the subject:
Subtract 7x from both sides: -7y = -56x
Divide both sides by -7: y = 8x
Equate both equations and solve for x:
y = y
12 + 2x = 8x
Subtract 2x from both sides: 12 = 6x
Divide both sides by 6: 2 = x
Therefore, x = 2
Now substitute x = 2 into any of the two equations to find y:
y = 8x
y = 8 x 2
y = 16
Therefore, x = 2 and y = 16
