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harkovskaia [24]
2 years ago
9

7. Diane flew home from vacation with a heavy bag. With the first airline she 1 point

Mathematics
1 answer:
Otrada [13]2 years ago
5 0

Answer:

80

Step-by-step explanation:

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One number is twelve greater than another number. Twice the larger plus five times the smaller is 38. Find both numbers.
SSSSS [86.1K]

Answer:

I need points because i have a question

Step-by-step explanation:

And i need major help hope u understand also thanks

8 0
3 years ago
6. Let A and B be nxn matrices . Compute (A + B) (A + B). Explain all steps.
Pie

Answer:

(A+B)(A+B)=A.A+B.A+A.B+B.B

Step-by-step explanation:

Given that matrices A and B are nxn matrices

We need to find (A+B)(A+B)

For understanding the multiplication of matrices let'take A is mxn and B is pxq matrices,we can multiple only when n=p,so our Ab matrices will be mxq.

We know that that in matrices AB is not equal to BA.

Now find  

(A+B)(A+B)=A.A+B.A+A.B+B.B

So from we can say that (A+B)(A+B) is not equal to A.A+2B.A+B.B because AB is not equal to BA in matrices.

So (A+B)(A+B)=A.A+B.A+A.B+B.B

4 0
2 years ago
Mr. Kohl has a breaker containing n milliliters of solution to distribute to the students in his chemistry class. If he gives ea
77julia77 [94]

Answer:

There were 26 students in his class and the teacher had 83 ml of the solution.

Step-by-step explanation:

Mr. Kohl has a "x" amount of solution, if he divides it by the number of students "n" he'll give each student 3 milliliters  and have a left over of 5 milliliters. If the amount of solution Mr. Kohl had was "x + 21" then he'd be able to give each student 4 milliliters of the solution. From these informations we have:

x = 3*n + 5

(x + 21)/n = 4

x + 21 = 4*n

x = 4*n - 21

Now that we have two equations and two variables we can solve the system of equations, as seen bellow:

3*n + 5 = 4*n - 21

3*n - 4*n = -21 - 5

-n = -26

n = 26

x = 4*26 - 21 = 83 ml

There were 26 students in his class and the teacher had 83 ml of the solution.

3 0
2 years ago
Mr. Lemus washed
Georgia [21]

Answer:

his son

Step-by-step explanation:

5 0
3 years ago
The opposite sides of a parallelogram are always sometimes or never congruent
KengaRu [80]
Always congruent due to the way the shape is built
6 0
3 years ago
Read 2 more answers
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