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harina [27]
3 years ago
15

39 less than twice a number is 5 times the sum of a number and two times the number. Find the number

Mathematics
1 answer:
umka2103 [35]3 years ago
3 0
2n - 39 = 5(n + 2n)\\2n - 39 = 5(3n)\\2n - 39 = 15n\\2n = 15n + 39\\-13n = 39\\\\n = -3
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Compare 3 x 10^-25 and 4.5 x 10^-24, which number is the greatest. Explain your reasoning for the answer you choose.
Karolina [17]

Answer:

4.5 x 10^-24

Step-by-step explanation:

because 3 x 10^-25 is 0000000000000000000000000.3    

and 4.5 x 10^-24 is 0000000000000000000000004.5 its just greater

5 0
3 years ago
Help!!! How do you solve problems like these anyway? <br><br> Answers would help too
Zanzabum

3.Slope: 10 Y int: 5

4. Slope: 5 Y int: 10

6.Slope: 1/3 Y int: 3.5

7.Slope: 4/3 Y int: -1

8.Slope: 2/-4 Y int: -1

The way you do this is the Y int is where the line crosses through the y-axis. Finding the slope is finding the rise over run (y/x). It's easy to find when you know how to.

Use 4. as an example. Start where at (-3,-5) or (-2,0). Each 'rise' up 5 and 'runs' one block over, giving you the slope of 5/1 or 5 simplified.

7 is harder, but start at (-3,-5). It 'rises' up 4, then 'runs' 3, also giving you the y int, as it crosses the axis. As the rise is 4 and run is 3, it creates the slope 4/3.

4 0
3 years ago
the dimensions of a triangle with base 4m and height 5m are multiplied by 3. How is the area affected?
Lubov Fominskaja [6]

Answer:

idk SPAM

Step-by-step explanation:

8 0
4 years ago
30 POINTS PLS HELP!!!
Kisachek [45]

Answer:

C) 66

Step-by-step explanation:

We must follow PEMDAS which stands for:

P- Parenthenses

E- Exponents

M- Multiplication left to right

D- Division left to right

A- Addition left to right

S- Subtraction left to right

Parenthenses: 4^3+2(1)

Exponents: 64+2(1)

Multiplication: 64+2

Addition: 66

So the correct choice is C

8 0
4 years ago
Read 2 more answers
I'LL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST!! NO RANDOM LINKS.
zavuch27 [327]

Answer:

B, C, D

Step-by-step explanation:

9x4=36 Yes

12x3=36 Yes

6x6=36 Yes

9x9=81 No

8x4=32 No

7 0
3 years ago
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