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3 years ago

PLEASE HELP!!! 40pts

Mathematics

2 answers:

skelet666 [1.2K]3 years ago

7 0

Answer: a

Step-by-step explanation:

I think

mote1985 [20]3 years ago

3 0

Answer:

i think a

Step-by-step explanation:

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The sum of two number is 31.⅔ of one of the number is equal to ⅝ of the other find the two numbers

Sloan [31]

make it exuavalent and answer. what i taught is the answer is in the q. itself

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3 years ago

Use the number line to add the fractions.<br><br> help plz look at picture

mr_godi [17]

Answer:

$\frac{1}{6}$

Step-by-step explanation:

$- \frac{1}{2} + \frac{2}{3} = - \frac{3}{6} + \frac{4}{6} \\\\ - \frac{3}{6} + \frac{4}{6} = \frac{1}{6}$

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3 years ago

What is 0.54 repeating

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If you mean as a fraction:0.54 repeating as a fraction is 54/99.

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3 years ago

Which answer choice shows that the set of irrational numbers is not closed under addition?

Ivan

Answer:

pi + -pi = 0

Step-by-step explanation:

We need to have irrational numbers that we are adding and end up with a rational number. This means that it is not closed under addition

pi is an irrational number

0 is a rational number

pi + -pi = 0

irrational + irrational = rational

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3 years ago

Jake can mulch a garden in 30 minutes. together, jake and ross can mulch the same garden in 16 minutes. how much time t, in minu

Gelneren [198K]

"Jake can mulch a garden in 30 minutes." So, for 1 min Jake can mulch 1/30 part of a garden.

Ross can mulch the park for x minutes. So, for 1 min Jake can mulch 1/x part of a garden.

If they work together, for 1 min they will mulch (1/30 + 1/x) part of the garden.

At the same time, we know, that of they work together they can mulch the garden in 16 min, so for 1 min they will mulch 1/16 part of the garden.

Now, we can write an equation

$\frac{1}{30} + \frac{1}{x} = \frac{1}{16} \\ \\ \frac{1}{x} = \frac{1}{16} - \frac{1}{30} \\ \\ \frac{1}{x} =\frac{30-16}{16*30} \\ \\ \frac{1}{x} =\frac{14}{16*30} \\ \\x=\frac{16*30}{14}$

x≈34.3 (min)

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4 years ago