Questions by Hopper

Questions by Hopper

Suppose you find a rock originally made of potassium-40, half of which decays into argon-40 every 1.25 billion years. You open the rock and find 31 atoms of argon-40 for every atom of potassium-40. How

asked Aug 11, 2018

2 answers

1 vote

80.6k views

A certain bird ordinarily lives in or near water and spends much of its time swimming ? what type of feet would you expect this bird to have.

asked Jul 3, 2018

2 answers

1 vote

221k views

There were 985 pencils. Some pencils were sold. Then there were 559 pencils left. How many pencils were sold?

asked Feb 21, 2018

2 answers

2 votes

134k views

Write the following numbers in standard form .0.0006

asked Nov 26, 2017

2 answers

0 votes

229k views

Miguel's teacher asks him to color 4/8 of his grid. He must use 3 colors; red, blue, green. There must be more green sections than red sections. How can Miguel color the sections of his grid to follow

asked Jun 16, 2016

1 answer

1 vote

95.2k views

Solve for x: 3 − (2x − 5) < −4(x + 2)

asked Feb 15, 2016

1 answer

5 votes

9.1k views

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