Write an expression used to find 4x275 using mental math and properties of numbers

1 answer:

5 0

What I suggest is to round the numbers. 4 rounds up to 5. 275 would round up to 280 or 300 whatever is easier. your expression would be 5*280 or 5*300.
I hope this helped :)

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Brooke and Lamont ran a half marathon, Brooke finished in 1 hour 45

AURORKA [14]

Answer: brooke had the faster time

Step-by-step explanation:

This is because if you convert 1 hour 45 into minutes it would be stated as 105 minutes and if you do 115 - 105 you are left with 10 which the bigger number is the fastest so it would be brooke the reason I subtracted was to see if they were not similar. Hope this helps :)

6 0

4 years ago

Read 2 more answers

Recycled cd’s incorporated, offers a choice of 5 used CD for $24, with each additional CD costing $5. Write a cost function for

DiKsa [7]

If $24 represents the cost of the 5 used CDs, than your formula would be "24+5x" ,x being the amount of extra CDs you purchase.

24+5(6-5)

24+5(1)

24+5

=29

6 CDs would cost $29

I hope thats right, goodluck^^