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kotegsom [21]
3 years ago
10

(-3*10^9)(1.27*10^-12) in scientific notation

Mathematics
1 answer:
katen-ka-za [31]3 years ago
7 0
It would be = -3.81 * 10^-3
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PLEASE HELP ASAP PLLSSS!!!!
IgorC [24]

Answer:

  • 7 months

Step-by-step explanation:

a)

  • A(x) = 275 + 125x

b)

  • C(x) = 1850 - 100x

c)

  • 275 + 125x = 1850 - 100x
  • 125x + 100x = 1850 - 275
  • 225x = 1575
  • x = 1575 / 225
  • x = 7

The answer is 7 months

4 0
2 years ago
During a field trip, 60 students are put into equal-sized groups. Describe two ways to interpret 60 ÷ 5 in this problem *
sergeinik [125]

Answer:

    x=12 groups

This will give 5 Students each in 12 different equally sized groups

    x'=5groups

This also shows that students can grouped in equal groups of 12 in 5 places

Step-by-step explanation:

From the question we are told that

60 children in equal sized groups

Generally interpreting 60\div 5 can be mathematically represented as

a)

    x=\frac{60}{5}

    x=12 groups

This will give 5 Students each in 12 different equally sized groups

b)

    x'=\frac{60}{12}

    x'=5groups

This also shows that students can grouped in equal groups of 12 in 5 places

6 0
3 years ago
Twice a number decreased by 8 is 2 less than half the number. What is the number?
iogann1982 [59]

Answer:

18

Step-by-step explanation:

2x - 8 = x + 10

- x       - x

x - 8 = 10

 + 8   + 8

x = 18

 

 

8 0
3 years ago
Read 2 more answers
Does anyone have the answer to this? <br> 3(x+2)-7 = 5x + 7.
Aleks04 [339]

Answer:

-4

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A health insurance payment of $34.55 was deducted from ms. Donaldson's earnings for the week. After the insurance deduction, pay
leonid [27]
I think that this quesion is missing some background, that is that Ms. Donaldson earned 907.10

So the 34.55 were deduced from this number, and the remaining amount was:

907.10-34.55=872.65

After this, further 28% were deduced, which means that 100-28=72% were left.

And this is:72%*872.55= 628.236 (which we round to 628.24!)

 
6 0
3 years ago
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