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yulyashka [42]
3 years ago
5

3x-1 and 5x+2 find the area

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
7 0

<u>Given</u><u>:</u>

  • 3x - 1

  • 5x + 2

<u>To</u><u> </u><u>find</u><u> </u><u>out</u><u>:</u>

Find the area ?

<u>Solution</u><u>:</u>

Area = ( 3x - 1 ) × ( 5x + 2 )

= 3x ( 5x + 2 ) - 1 ( 5x + 2 )

= 15x² + 6x - 5x - 2

= 15x² + x - 2

Thus, the area is 15x² + x - 2 .

Alex787 [66]3 years ago
6 0

Answer:

=  15 {x}^{2}  + x - 2 \\

Step-by-step explanation:

(3x - 1) \times (5x + 2) \\ 3x(5x + 2 ) - 1(5x + 2) \\ 15 {x}^{2}  + 6x - 5x - 2 \\ =  15 {x}^{2}  + x - 2

hope this helps

brainliest appreciated

good luck! have a nice day!

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A scooter is priced between $1,000 and $ 2,000. Its price is a multiple of 10. All of the digits in the price, except for the th
snow_tiger [21]

Let us first break down the question given the information stated.

The question tells us that all of the digits in the price, except for the thousand digit, are even numbers, and that the scooter is priced between $1, 000 and $2, 000.

Effectively, this means that:

a) it must cost more than $1, 000 but less than $2, 000

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We also know that the price is a multiple of 10, thus we can modify b) from above and say that:

b) the second and third digits are even (0, 2, 4, 6 or 8)

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Now, this is where we need to remember that the second (ie. hundreds) and third (ie. tens) digits must be even and multiples of 10. Thus, we must do a little trial and error to find two values that fit these constraints, with x representing the tens value and y representing the hundreds value. We will start with x = 20 (we cannot start with x = 0 since the price would then be $1, 000, and we cannot start with x = 10, since the digit in the tens place would be a 1, which is odd, not even):

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I hope this does help you, however if you have any further questions or feel that I may have misinterpreted something (I personally found 'The value of the hundreds digit is 30 times the value of the tens digit' to be a little poorly defined), please feel free to comment below :)

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