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Sphinxa [80]
3 years ago
8

Estimate 4020 ÷ 16 by first rounding each number so that it has only 1 nonzero digit.

Mathematics
2 answers:
ale4655 [162]3 years ago
5 0
4020/16 original problem
4000/20  estimated problem
200     answer

Alexxx [7]3 years ago
3 0
You round 4020 to 4000
round 16 to 20
then divide 4000 by 20
once you divide the answer is 200
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Hawaii 0.288% = what fraction
Sindrei [870]

Answer:

36⁄125 or if we are talking about the lowest term it is 9 /3125


Step-by-step explanation:

Step 1: 0.288 = 288⁄1000  

Step 2: Simplify 288⁄1000 = 36⁄125 Percent" or "%" means "out of 100" or "per 100",



<em>Or for the lowest term:</em>

Therefore 0.288% can be written as  

0.288

100

.

Next, we can multiply by  

1

in the form of  

1000

1000

to eliminate the decimal in the numerator:

1000

1000

×

0.288

100

⇒

1000

×

0.288

1000

×

100

⇒

288

100000

.

We can now reduce the fraction as:

288

100000

⇒

32

×

9

32

×

3125

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32

×

9

32

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3125

⇒

9

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4 0
3 years ago
7. log(x+3)(2x + 3)+log(x+3)(x +5)= 2
OverLord2011 [107]

log(x+3)(2x+3)+log( x+3)( x+5) =2

logx(2x+3)+3(2x+3 )+log x(x+5)+3(x+5)

log {2x}^{2}  + 3x + 6x + 9 + logx {}^{2}  + 5x + 3x + 15

6 0
3 years ago
Help on 1,2,3,4,5,6,7, and 8 please!
Bogdan [553]
Number 7 is 6 2/3 ...
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3 years ago
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Eduardwww [97]

Answer:

)  = 23 °C

ii) = 4.4° C

Step-by-step explanation:

i) The temperature on the surface of the planet.

At the surface of the planet the height is Zero

Therefore, X = 0

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y = 23 - 5x

y = 23 - 5(0)

  = 23 °C

ii) the temperature change for every kilometer from the surface,

From the equation;

y = 23 - 5x

we take, y to be 1

Therefore;

1 = 23 -5x , subtracting 23 on both sides we get

-22 = -5x

x = -22/-5

 = 4.4° C

4 0
3 years ago
The linear equation 99​(xminus−77​)equals=99​(xplus 88​) is
Natalija [7]
99(x-77)=99(x+88)
99x-7623=99x+8712
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3 years ago
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