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White raven [17]
3 years ago
11

What strategy can be used to solve 8 x 25 x 23

Mathematics
1 answer:
wariber [46]3 years ago
7 0
The best way to multiply complicated problems mentally* is to break them into chunks.

Start with 20 times 8 to get 160, and then 8 times 5 to get 40. Add these together to get 200. 200 times 3 is 600, and 20 times 200 is 4000. Add these together to get your final answer, 4600. 

In other words 8 x 20 + 8 x 5 = 200  200 x 3 + 200 x 20 = 4600

*I assumed you meant mentally, because otherwise you'd just multiply longhand, multiplying two of the three numbers and then multiplying their product with the third. 
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Find the values of the variables in the parallelogram. The diagram is not to scale.
Anna [14]

Answer:

  • Option C

Step-by-step explanation:

  • x = 36° as alternate interior angles are congruent
  • z = 110° as opposite angles of parallelogram are congruent
  • x + y + 110° = 180° as adjacent angles of parallelogram are supplementary
  • y = 180° - 110° - 36° =  34°

Correct choice is C

8 0
2 years ago
Write the name of the period that has the digits 913
tankabanditka [31]
Thousands grou
the thousands group. 913,256 256 being the ones group 913 being the thousands group.  the name of the period with 913, is the thousands group p
4 0
3 years ago
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Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel.
goldfiish [28.3K]

Answer:

B is the correct answer

Kevin is K

Daniel is D

Now: K

K = D + 3

3 years ago:

K - 2 = 4(d - 2)

<h2>YOURE WELCOME, PLEASE MARK AS BRAINLIEST AND FOLLOW ME ❤️❤️</h2>

6 0
3 years ago
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4x+15=6x-5 solve for x
hram777 [196]

Answer:

x = 10

Step-by-step explanation:

Breaking down the equation

4x+15=6x-5\\4x+15-15=6x-5-15\\4x=6x-20\\4x-6x=6x-20-6x\\-2x=-20\\\frac{-2x}{-2}=\frac{-20}{-2}

Simplification

\frac{-2x}{-2}\\=\frac{2x}{2} (\frac{-x}{-y} = \frac{x}{y})\\\frac{2}{2} = 1 = x\\\\\frac{-20}{-2}\\=\frac{20}{2}\\\frac{20}{2}\\=10

6 0
2 years ago
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At video shack, Movie rentals cost $3.99 each. The cost of renting three movies in one video game is $.11 less than the cost of
goldenfox [79]
Think of it like this
3.99 x 3=11.97
Divide by 4
Should give u 2.99
^^^there is your answer
7 0
3 years ago
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