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Novay_Z [31]
3 years ago
5

Explain how estimation helps you place the decimal point when multiplying 3.9 &5.3

Mathematics
1 answer:
kow [346]3 years ago
6 0
3.9 and 5.3, when rounded off and mult. together, produce the product 20.
Thus, the decimal point must follow the first two digits of your answer, whether estimate or "exact."

3.9*5.3 = 20.67 by calculator.
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A box containing packets of oatmeal has the shape of a rectangular prism measuring 12 cm by 20 cm by 7 cm. 
qaws [65]
The answer is D

12 * 20 * 7 = 1680
8 0
3 years ago
Over the weekend, statton and tyler drove to montana to go hunting. now they're preparing to go home.tyler needs gas for his jee
Shtirlitz [24]
The jeep gets 22 miles per gallon...

he has 5 gallons in the tank already....
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7 0
3 years ago
A license plate consists of two letters followed by two digits; for example, $MP78$. Neither the digits nor the letters may be r
alex41 [277]

If in a number plate two different alphabets need to be selected then there are 650 such number plates that can be formed in such a way that the alphabets come in increasing order.

Given that a number plate can be formed using 2 alphabets which must come in increasing order.

We are required to find the number of plates that can be formed.

Number of total alphabets=26.

The number of plates will be equal to the number of ways in which two alphabets can be arranged.

Combination is the number of ways in which some combinations can be formed. It is expressed as nC_{r}=n!/r!(n-r)!

Number of license plates=26C_{1}*25C_{1}

=26*25

=650 plates

Hence If in a number plate two different alphabets need to be selected then there are 650 such number plates that can be formed in such a way that the alphabets come in increasing order.

Learn more about combinations at brainly.com/question/11732255

#SPJ4

3 0
1 year ago
The dimensions of a rectangle can be given by x+9 and x-2. If the area is 60ft^2, what is the value of X?
Veronika [31]

Answer:

6

Step-by-step explanation:

(x + 9) * (x - 2) = 60

x^2 - 2x + 9x - 18 = 60

x^2 + 7x - 18 = 60

x^2 + 7x = 78

FACTORING:

x(x + 7) = 78

x = 6

6 0
3 years ago
Simplify 7(n - p) + 5p.
andre [41]
7(n - p) + 5p
7n - 7p + 5p
7n - 2p 
8 0
3 years ago
Read 2 more answers
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