2 years ago

A counterexample is an example that shows_______.

Mathematics

1 answer:

lord [1]2 years ago

5 0

Answer:

Step-by-step explanation:

sorrow if its wrong I need to find my glasses

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Josh exercises at the gym 3 3/4 hours a week. He spends 2/5 of his time at the gym lifting weights. How many hours a week does J

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Answer:

1.5hours

Step-by-step explanation:

Firstly in this question, we convert the time given to minutes.

Using the conversion of 60 seconds make a minute, we have 3/4 hours as 3/4 * 60 = 45 minutes. Let’s add this to a total of 3 hours which is 180 minutes. This gives a total of 225 minutes.

Now, we are told that he spends 2/5 of his time lifting weight. This is equivalent to 2/5 * 225 = 90 minutes

We convert this to hour = 90/60 = 1.5 hours

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3 years ago

Four times the sum of a number and 15 is at least 120. Let x represent the number. Find all possible values for x.

Aleksandr [31]

4(x + 15) > = 120
4x + 60 > = 120
4x > = 120 - 60
4x > = 60
x > = 60/4
x > = 15...........so ur answer is 15 or more

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3 years ago

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Dafna11 [192]

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Step-by-step explanation:

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2 years ago

Ryan is moving, and he is packing a box with plates and bowls. The box can only hold 12 pounds. Each plate weighs 1.2 pounds, an

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2 years ago

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David ate 1/4 of a chocolate pie and peter ate 2/5.What fraction of the pie still remains?

spin [16.1K]

Answer:

Step-by-step explanation:

Pie eaten by David and Peter = (1/4) + (2/5)

$= \frac{1*5}{4*5}+\frac{2*4}{5*4}\\\\=\frac{5}{20}+\frac{4}{20}\\\\=\frac{9}{20}$

Remaining pie = 11/20

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3 years ago