Dan's stamp book has 2 pages with 4 rows of stamps on each page. Each row has 2 stamps. How many stamps are on these pages of Dan's stamp book?
Answers
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In the given figure , AM l BC and AN is the bisector of angle bac . the value of angle man is
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All square numbers ends with ---------------------------- at units place . please find answer URGENT !
minus 12 over 16 and 12 over 16
B.
minus 12 over 18 and 12 over 18
C.
minus 9 over 16 and 9 over 16
D.
minus 72 over 128 and 72 over 128
Answers
Let's start with A:
12*12=144
16*16=256
Now you know that A is the correct answer.
B. 63 - 3y + 6
C. 63+ (6 x 3y)
D. 6 X (63 - 3y)
o
Answers
The expression has a value that is 6 times the value of the expression 63 – 3y would be, 6 × (63 - 3y)
The correct answer is option (D)
What is an Expression?
"An expression is a sentence with a minimum of two numbers and at least one mathematical operation in it."
For given example,
We need to find the value that is 6 times the expression 63 – 3y.
If we write it as an expression then it would be,
6 × (63 - 3y)
Therefore, the correct answer is option (D)
Learn more about expression here:
#SPJ2
Please answer these two math questions for me :)
Answers
"Please tell Kat that Brainly gives half the points she selects to each user that answers the question."
The Answers
#1:
We are trying to find the MAD for each set of the teachers' grades. To find the MAD (again) find the mean of the teachers' grades. Then, take each of the teachers' grades and find the absolute value of the difference between that grade and the mean grade. Add the differences up, and divide the result by the number of teachers (10).
Do the first table first (first things first!). Find the mean by adding up the grades and dividing them by the number of teachers (10).
76 + 81 + 85 + 79 + 89 + 86 + 84 + 80 + 88 + 79 = 827
827/10 = 82.7
The mean grade for the first table is 82.7.
Now, we need to find the absolute value of the difference between each of the teachers' grades and the mean.
82.7 - 76 = 6.7
82.7 - 81 = 1.7
85 - 82.7 = 2.3
82.7 - 79 = 3.7
89 - 82.7 = 6.3
86 - 82.7 = 3.3
84 - 82.7 = 1.3
82.7 - 80 = 2.7
88 - 82.7 = 5.3
82.7 - 79 = 3.7
Now, we need to add up the result.
6.7 + 1.7 + 2.3 + 3.7 + 6.3 + 3.3 + 1.3 + 2.7 + 5.3 + 3.7 = 37
Now, we divide the result by the number of teachers.
37/10 = 3.7
So the MAD for the first table is 3.7.
Now we do the same thing for the second table.
79 + 82 + 84 + 81 + 77 + 85 + 82 + 80 + 78 + 83 = 811
811/10 = 81.1
Bad grades.
81.1 - 79 = 2.1
82 - 81.1 = 0.9
84 - 81.1 = 2.9
81.1 - 81 = 0.1
81.1 - 77 = 4.1
85 - 81.1 = 3.9
82 - 81.1 = 0.9
81.1 - 80 = 1.1
81.1 - 78 = 3.1
83 - 81.1 = 1.9
Add.
2.1 + 0.9 + 2.9 + 0.1 + 4.1 + 3.9 + 0.9 + 1.1 + 3.1 + 1.9 = 21
21/10=2.1
Now, we compare the MAD's. If the MAD for the second table is greater than the MAD for the first table, then the teachers have not improved/were sleeping. If not, then the teachers have improved/got lucky.
Hooray! They improved/got lucky, by 1.6 points to be precise.
#2:
Remember from the previous answer I gave (the other question you asked) the example with a MAD of 0? That's because they were all exactly on the mean (4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 40, 40/10 = 4, MAD = 0). Therefore, if the MAD of the teachers' grades was zero, that means they all got the same score! Hooray! Mission accomplished. Or the common core machine has succeeded in producing identical copies of teachers.
Backword
I hope you know what the MAD is now.
-1.5(4-r)=-12
0 -6
-4
4
06
Answers
Answer:
r = -4
Step-by-step explanation:
-1.5(4-r)=-12
Divide each side by -1.5
-1.5/-1.5(4-r)=-12/-1.5
(4-r)=8
Subtract 4 from each side
4-r-4 = 8-4
-r = 4
Divide each side by -1
r = -4
Answer:
r = -4
Step-by-step explanation: I hope it helps :)
Answers
Simplify: 12x + 5 = 12x + y (We are adding x and 11x on the left side)
Subtract 12x from each side makes each zero.
5 = y
So we can plug in and test. I'm picking two random numbers to plug in for x. 10, and 82
x = 10, y = 5
10 + 5 + 11(10) = 12(10) + 5
125 = 125
x = 82, y = 5
82 + 5 + 11(82) = 12(82) + 5
989 = 989
So we verified y = 5
B. 10.51
C. 14.163
D. 19.3
Answers
Answer:
c. 14.163
Step-by-step explanation:
We are given a number 84.12 and we need to find a number that when multiplied with 84.12 will give a product with three decimal places. Let's analyze each option