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Tamiku [17]
3 years ago
10

Use a factor rainbow to determine if 729 is a perfect square. Explain your reasoning.

Mathematics
1 answer:
maksim [4K]3 years ago
5 0

Answer:

729 is a perfect square

Step-by-step explanation:

because 27 * 27 = 729

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Ally and Beck went fishing and caught a total of 75 fish. At home,
tigry1 [53]

Answer:

<em>Beck actually caught 45 fish</em>

Step-by-step explanation:

<u>System of Equations</u>

We call the following variables:

x = number of fish Ally caught

y = number of fish Beck caught

They caught a total of 75 fish, thus:

x + y = 75      [1]

If Ally had caught twice as much fish as she actually did, and Beck had caught three times as many fish as he actually did, then Ally would have caught 75 fewer fish than Beck, thus:

3y = 2x + 75      [2]

From [1]:

x = 75 - y      [3]

Substituting in [2]:

3y = 2(75 - y) + 75

Operating:

3y = 150 - 2y + 75

Simplifying:

5y = 225

Dividing by 5:

y = 45

Beck actually caught 45 fish

3 0
3 years ago
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Bob had 18 crackers Sam eat 1/6 of the crackers and sue ate 1/3 of the crackers. how many crackers did Bob have left
Lapatulllka [165]
We can add 1/6 & 1/3 together to find out the total amount of crackers that were eaten:

1/6 + 1/3   (Find the Common Denominator. In this case it is 6.) 
= 1/6 + 2/6
= 3/6 (Now find the Lowest Terms. Both 6 & 3 divide into 3)
= 1/2 (In Lowest Terms)

This means that 1/2 of the Crackers have been eaten.

1/2 of 18 = 9 

Therefore, Bob has 9 Crackers left. 
6 0
3 years ago
Read 2 more answers
Suppose that all of the points on the circular dartboard shown are equally likely to be hit by a dart. If the radius of the shad
jekas [21]
This must double your chances so if i round the nearest whole number would be 8 any questions?
6 0
3 years ago
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Please show your work!!
jarptica [38.1K]

Answer:OK ILL HELP

Step-by-step explanation:Combine  

1

2

and  

x

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y

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6 0
3 years ago
Question 4 graph on a number line
ozzi

Answer:

The third one

Step-by-step explanation:

You would first mark -2 on a graph then the circle would be open because the sign is just greater than, then the arrow would be pointing to the right, because that is the way your equation shows it

5 0
3 years ago
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