MATHEMATICS MIDDLE SCHOOL

Explain how you would find the sum 46+7

Answers

Answer 1

Answer:

1. You would set them up:46+7

2. Next you would do 6+7 which equals 13

3. You would then bring down the 4

4. And last you get the answer:53

Hope this helped you!

Answer 2

Answer: 6 and 7 is 13 so you would re-group 1 and leave the 3 and 4+1 is 5 so that would be 53

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Given a=5, d=3,an =50 .find the n and 5n

Can someone please help me

Answers

it is the first one because fist you reflect it to the right across the y axis, then you reflect it down across the x axis, and last but not least, you reflect it left across the y axis where it is now

hope this is helpful! :)

Which of the following is the solution to 9|x+4|>54 ?

Answers

Answer:

x < -10, x > 2

Step-by-step explanation:

9|x+4| > 54

|x+4| > 6

Split the absolute value into two equation, positive and negative.

1.)POSITIVE

x+4 > 6

x > 2

2.)NEGATIVE

-(x+4) > 6

-x - 4 > 6

-x > 10

x < -10

Answer:

$\large\boxed{x<-10\ \vee\ x>2\to x\in(-\infty,\ -10)\ \cup\ (2,\ \infty)}$

Step-by-step explanation:

$9|x+4|>54\qquad\text{divide both sides by 9}\n\n(9|x+4|)/(9)>(54)/(9)\n\n|x+4|>6\iff x+4>6\ \vee\ x+4<-6\n\nx+4>6\qquad\text{subtract 4 from both sides}\n\nx+4-4>6-4\n\nx>2\n\nx+4<-6\qquad\text{subtract 4 from both sides}\n\nx+4-4<-6-4\n\nx<-10$

PLEASE HELP! How do you count (a+2) (b+1) ??

Answers

$(a+2)(b+1)=(a)(b)+(a)(1)+(2)(b)+(2)(1)\n\n=ab+a+2b+2$

Pada suatu deret geometri diketahui suku ke-3 = 18 dan suku ke-6 = 486. suku pertama pada deret tersebut adalah...

Answers

a . r^(3-1) = 18
a . r^2 = 18...... (i)

a . r^(6-1) = 486
a . r^5 = 486 ...... (ii)

dengan membuat perbandingan dari kedua persamaan diperoleh:
r^2/r^5 = 18/486
1/r^3 = 1/27
r^3 = 27
r = akar pangkat 3 dari 27
r = 3

dari persamaan a . r^2 = 18...... (i)
a . 3^2 = 18
a . 9 = 18
a = 18/9 = 2

Emily is 4 years older than Grace. When their ages are added together they equal 26. How old is Emily?

Answers

26-4=2222/2=11Emily is 11

Four- fifteenths of the airlines flight are international. The airlines flights are equally divided around 8 countries . If the airline has 1,800 flights in all , how many are international?

Answers

4/15*1800=480 international flights

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