Good evening
Answer:
- 18x + 15
- 3(6x + 5)
Step-by-step explanation:
Unfortunately you didn’t provide the expressions to chose from ,however we can get other expressions From this one like this:
5(4x+3) - 2x = 20x + 15 - 2x
= (20x - 2x) + 15
= 18x + 15
we can also write 18x + 15 = 3×(6x) + 3×(5x) = 3(6x + 5)
then
these two expressions :
are equivalent to 5(4x+3) - 2x
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:)
Silver stars are worth 2 and gold stars are each worth 5
Answer:
-12h^3-6h^2+12h
Step-by-step explanation:
-3h(4h^2+2h-4)
-12h^3-6h^2+12h
Answer:
16 questions right = 80%
So Peter missed 4 questions.
Hope this helps.
:-)
Answer:
- trailing zeros are dropped
- 1846 beats
- 42×(selling price for 1 tin)
Step-by-step explanation:
41. The product of 0.25 and 0.4 is 0.100, with three decimal places. Trailing zeros are usually dropped--except when they are used to indicate significant digits in a calculation. Hence, the usual presentation of the result is ...
0.25 × 0.4 = 0.1
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42. To find total beats, multiply beats per second by seconds.
(52 beats/second)(35.5 seconds) = (52)(35.5) beats = 1846 beats
The hummingbird's wings will beat 1846 times in 35.5 seconds.
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43. To find total sales for the week, multiply the price of a tin of popcorn by the number sold in the week (42).
