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navik [9.2K]
3 years ago
15

Explain how finding 7x20 is similar to finding 7x2000

Mathematics
2 answers:
Kisachek [45]3 years ago
8 0
This is the same due to scientific notation. 
Brilliant_brown [7]3 years ago
8 0
It's just like how 7x2 helps you solve 7x20. When multiplying a number with another number that's only followed by zeros are simple because all you do is add a zero. Example:
7x2= 14
7x20= 140
7x200= 1400
7x2000= 14000
Etc.
I know there's a term for it, but I forgot because it's been a while since I've learned something like this
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A homeowner is installing a swimming pool in his backyard. he want its length to be 4 feet longer than its width. then he wants
marishachu [46]
1. You have that:

 - The homeowner<span> want the length of the swimming pool to be 4 feet longer than its width.</span> 
 - He wants to surround it with a concrete walkway 3 feet wide.
 - He can only afford 300 square feet of concrete for the walkway.

 2. Therefore, the tota area is:

 At=L2xW2

 L2 is the lenght of the walkway (L2=L1+3+3⇒L2=(W1+4+6)⇒L2=W1+10).
 W2 is the width of the walkway (W1+3+3⇒W2=W1+6)

 3. The area of the walkway is:

 A2=At-A1

 A2=300 ft²

 4. Therefore, you have that the width of the swimming pool is:

 A2=(W1+10)(W1+6)-(W1+4)(W1)
 300=(W1²+6W1+10W1+60)-(W1²+4W1)
 W1²+16W1+60-W1²-4W1-300=0
 12W1-240=0
 W1=240/12
 W1=20 ft

 5. And the length is:

 L1=W1+4
 L1=20+4
 L1=24 ft
8 0
2 years ago
Measurement A equals 6X - 35°
marissa [1.9K]

Answer:

............the answer is 97

6 0
2 years ago
a shipement of 14 microwave ovens contains six defective units A vending company has ordered 4 of these units and selection will
kupik [55]

Answer:

The probability that all 4 units are good is 10.66%.

Step-by-step explanation:

Given that a shipement of 14 microwave ovens contains six defective units, and a vending company has ordered 4 of these units and selection will be random, to determine what is the probability that all 4 units are good the following calculation must be performed:

14 - 6 = 8

8/14 x 8/14 x 8/14 x 8/14 = X

0.5714 x 0.5714 x 0.5714 x 0.5714 = X

0.1066 = X

0.1066 x 100 = 10.66

Therefore, the probability that all 4 units are good is 10.66%.

3 0
2 years ago
Write 4 1/5 as a improper fraction
BartSMP [9]

Answer:

21/5

Step-by-step explanation:

8 0
2 years ago
Which is the equation of a line that has a slope of mc005-1.jpg and passes through point (2, –3
goldenfox [79]
Id say B, y=-2/3+3
Hope this helps
8 0
3 years ago
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