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Sever21 [200]
2 years ago
12

What is the difference written in scientific notation 0.00067 - 2.3 * 10⁻⁵

Mathematics
2 answers:
Basile [38]2 years ago
8 0

6.47x10^-4

Step-by-step explanation:

Otrada [13]2 years ago
6 0

Answer:

6.47x10^-4

‎‎‎

Step-by-step explanation:

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Randall, Kira and Sean have 100 baseball cards altogether. Randall has twice as many as Kira and 10 more than Sean. How many bas
TEA [102]

Kira has 22 cards, Randall has 44 cards, and Sean has 34 cards

<u>Solution:</u>

Given that, Randall, Kira and Sean have 100 baseball cards altogether.

Randall has twice as many as Kira and 10 more than Sean.  

We have to find how many baseball cards does each person have?

Now, let the number of cards with Kira be "n", then number of cards with Randall will be "2n"

As Randall has "2n" cards, Sean will have 2n – 10

Now, total cards = 100  

<em>Randall cards + Kira cards + Sean cards = 100  </em>

2n + n + 2n – 10 = 100  

5n = 100 + 10  

5n = 110  

n = 22

So, kira has 22 cards, then, randall will have 2(22) = 44 cards and cards with sean = 44 – 10 = 34 cards.

Hence, kira has 22 cards, randall has 44 cards, and sean has 34 cards.

8 0
3 years ago
Algebra
kari74 [83]

Answer:

12

Step-by-step explanation:

3 0
3 years ago
The ratio of length to width (measured in inches) in a rectangle is 4∶7. find the length of the rectangle if the area is known t
Len [333]
Hey mate
here is your answer

length and width are given in the ratio are ;(4:7)
area of rectangle = (l×b)
therefore,
4x×7x=700
28x^2=700
x^2=700/28
x^2=25
x=5
length =4x=4×5=20, lenght =20 and width =7x so, 7×5=35 width.....
8 0
3 years ago
I need more help with 21 questions
Mariulka [41]

Answer:

45

Step-by-step explanation:

9 ÷ 1/5

9 × 5/1

9 × 5

45

7 0
3 years ago
Read 2 more answers
In the city where sonya lives, it rains and average of 8.05 centimeters each month last year.About how many centimeters of rain
erik [133]
In total it rained 96.6cm that year but on average it rained 100cm that year.
You would multiply 8.05 times the #of momths which is twelve.
7 0
3 years ago
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