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-BARSIC- [3]
3 years ago
11

140 convert to scientific notation

Mathematics
2 answers:
STALIN [3.7K]3 years ago
3 0

HEY!

Answer: 1.4x10^2

Hope this helps!!

~LENA~

dolphi86 [110]3 years ago
3 0

1.4*10^2

When doing scientific notation, you have to remember that the number we are converting must be less than or equal to 10, and greater than or equal to 1. Normally, we just count the number of zeros and raise the 10 to that number as a power. If we do that we are left with 14*10^1. Since we cannot have numbers greater than 10, we make the number a decimal. When adding decimals, you keep moving the decimal to the right if the outcome is greater than 1, and decimals the the left if the outcome is less than 1. Doing so we are left with 1.4*10^2, or one point four raised to the second.

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A camera has a listed price of $658.95 before tax. If the sales tax rate is 9.75%, find the total cost of the camera with sales
jeka57 [31]

Answer:

$721.55

Step-by-step explanation:

658.95*1.095=721.55

4 0
2 years ago
You make punch for a party. The ratio og ginger ale to fruit juice is 8 cups to 3 cups. You decide to add 4 more cups of ginger
Dvinal [7]
To get the answer we can use proportion
8 ginger ----------------- 3 fruit
12 ginger ----------------x
Crossmultiply now
8x=12*3                /:8
x=\frac{12*3}{8}
x=<u />\frac{36}{8}  \\ x=4.5
To not change ratio we have to have 4.5 cups of fruilt juice. We initialy had 3, so we have to add 1.5 cup of fruit juice.
7 0
3 years ago
Evaluate the log by thinking “3 to what power is 1/9 so log3(1/9) =
Vlad [161]

Answer:-2

Step-by-step explanation:

Log3(1/9)

Log(1/9) ➗ Log3

Log(1/3^2) ➗ Log3

Log3^(-2) ➗ Log3

-2Log3 ➗ Log3

-2(Log3 ➗ Log3)

-2

8 0
2 years ago
All the pupils at a primary school come from one of three villages: Elmswell, Haughley or Woolpit. 1/4 of the pupils come from E
Jlenok [28]

Answer:

<em>680</em>

Step-by-step explanation:

Given that:

All the pupils at a primary school come from one of three villages: Elmswell, Haughley or Woolpit.

\frac{1}{4} of the pupils come from Elmswell

\frac{3}{5} of the pupils come from Haughley

102 pupils come from Woolpit.

To find:

Total number of pupils in the school.

Solution:

Let total number of pupils = 100x

So, number of pupils that come from Elmswell = \frac{1}{4} of 100x

OR

\dfrac{1}{4} \times 100x\\\Rightarrow 25x

And, number of pupils that come from Haughley= \frac{3}{5} of 100x

OR

\dfrac{3}{5} \times 100x\\\Rightarrow 60x

Number of pupils that come from Woolpit = 100x - 25x - 60x \Rightarrow 15x

As per given statement:

15x = 102\\\Rightarrow x =6.8

Number of pupils from Elmswell = 25x = 25 \times 6.8 = 170

Number of pupils from Haughley = 60x = 60 \times 6.8 = 408

Total number of pupils at the school = 100x \Rightarrow 100 \times 6.8=680

7 0
2 years ago
PLEASE HELP ME?! BRAINLIEST ANSWER PLUS EXTRA POINTS! The perimeter of a basketball court is 84 meters and he length is 6 meters
Marina86 [1]

Answer:

I hope this helps you and you have an amazing day the answer

Width=12

Length=30

Step-by-step explanation:

L=2W+6 is

P=2L+2W

84=2(2W+6)+2W

84=4W+12+2W

84=6W+12

6W=84-12

6W=72

W=72/6

W=12 ans. for the width.

L=2*12+6=24+6=30 ans. for the length.

Proof:

84=2*30+2*12

84=60+24

84=84

3 0
3 years ago
Read 2 more answers
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