3 years ago

Compare your prediction with the total number of pennies on Row 1. How would you change your estimate? Is the result surprising?

1 answer:

6 0

<span>Sample Answer: My prediction was less than the actual count. Instead of multiplying the number squares by a guess for the average, estimate the pennies on the last square to help guide the estimate.</span>

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Divide the total centimeters by centimeters per inch:

51.78 / 2.54 = 30.386 inches.

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3 years ago

Joseph has 3,134 pieces of paper in his classroom.emily has 5,229 pieces of paper in her classroom.how many pieces of paper do t

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2095 is the correct answer

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ethan earned 5% of the maximum number of points possible . It ethan earned 40 points , what is the maximum number of points poss

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Answer:

3840

Step-by-step explanation:

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3 years ago

Simplify the Radical Expression 7√x-9√x+10√2+√2

zysi [14]

Answer:

Step-by-step explanation:

7√x-9√x+10√2+√2 = √x ( 7 - 9) +√2 ( 10+1) = - 2√x + 11√2

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3 years ago

A card is selected at random from an ordinary deck of 52 cards. What is the probability that it is either an ace or a spade

tamaranim1 [39]

Answer: 4/13

Step-by-step explanation:

Number of cards in a deck = 52

Number of spades = 13

Number of aces = 4

Number of ace of spade = 1

Probability of either a spade or an ace :

P(spade or ace) = P(spade U ace)

P(spade U ace) = p(spade) + p(ace) - p(spade n ace)

Probability = required outcome / Total possible outcomes

P(spade) = 13 / 52

P(ace) = 4 / 52

P(spade n ace) = 1 / 52

P(spade U ace) = p(spade) + p(ace) - p(spade n ace)

= 13/52 + 4/52 - 1/52

= 16 / 52 = 4 /13

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2 years ago