MATHEMATICS MIDDLE SCHOOL

Can someone help me with these questions??

Answers

Answer 1

Answer:

a.)

784

/ \

2 392

/ \

2 196

/ \

2 98

/ \

2 49

/ \

7 7

√784 = 7² × 2^4

= 7² × 4²

= 28²

So, √784 = 28

b.)

2025

/ \

3 675

/ \

3 225

/ \

3 75

/ \

3 25

/ \

5 5

2025 = 5² × 3^4

= 5² × 9²

= 45²

So, √2025 = 45

c.)

9261

/ \

3 3087

/ \

3 1029

/ \

3 343

/ \

7 49

/ \

7 7

9261 = 7³ × 3³

= 21³

So, ³√9261 = 21

d.)

46656

/ \

2 23328

/ \

2 11664

/ \

2 5832

/ \

2 2916

/ \

2 1458

/ \

2 729

/ \

3 243

/ \

3 81

/ \

3 27

/ \

3 9

/ \

3 3

46.656 = 2³ × 3³ × 2³ × 3³

= 6³ × 6³

= 36³

So, ³√46.656 = 36

Hope it helps and is useful:)

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Is eleven more than a number

Answers

So,

11 more than a number(n) can be re-written as 11 + n.

You would have to do 11 + n

Amy raises $ 58.75 to participate in a walk-a-thon. Jeremery raises $ 23.25 more then Amy. Oscar raises three times as much as Jeremey. How much money does Oscar raise?

Answers

Oscar raises $246.
Add Jeremy's amount to Amy's and then multiply by 3

Oscar raises $69.75 because $23.25 multiplied by 3 equals $69.75.

Hope that helped:)

15 students wore pj's out of 20 . how many were not wearing pj's in decimal

Answers

15/20 = 3/4 were wearing pajamas

3/4=0.75, so only 0.25 were not wearing pajamas.

15
----=3\4=0.75
20

75
-50
-----
25

What are the first four terms of the sequence represented by the expression 5+2n

Answers

term 1, n = 1
5 + 2 × 1 = 5 + 2 = 7

term 2, n = 2
5 + 2 × 2 = 5 + 4 = 9

term 3, n = 3
5 + 2 × 3 = 5 + 6 = 11

term 4, n = 4
5 + 2 × 4 = 5 + 8 = 13

7, 9, 11, 13

subsitute n=1,n=2,n=3,=4 to get the firstt 4 terms

5+2(1)=5+2=7

5+2(2)=5+4=9

5+2(3)=5+6=11

5+2(4)=5+8=13

first 4 terms are 7,9,11,13

Unit 10 | Lesson 5 Lesson Checkpoint: Show What You Know Question Navigator Choose the answer. 2. (1 pt) Which answer is the most reasonable estimation? Gwen owns an oil-change station. She estimates that she uses 18 cases of motor oil a day. Each case has 24 one-quart bottles of motor oil. About how many quarts of oil does Gwen use in a day? A. about 600 B. about 400 C. about 200 D. about 40 Question Resources

Answers

The answer is B.about 400, because if you multiply 18 by 24 you get the answer without rounding, and that answer would be 434; once 434 is rounded to the closest possible answer, you get that the answer, which is, as stated before, B. about 400.

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