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2 years ago

12

A survey in one middle school showed that 4 out of 9 students help cook meals at home. Predict how many out of the 720 students

in the school help cook meals at home.

1 answer:

valentinak56 [21]2 years ago

5 0

Answer:

yes b

Step-by-step explanation:

yes

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15 times 18 + 12 divided by 3 +9

inessss [21]

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283 is the answer

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Check the picture below.

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3 years ago

What is a coefficient for (4x-2)

zubka84 [21]

The coefficient in (4x-2) is the -2

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Which is a closer estimate of pi? Explain your answer.

nydimaria [60]

The fraction 22/7 has a value of 3.142857, so it has the same first three digits as pi. Both 3.14 and 22/7 are approximations of pi. In fact, 22/7 is close to pi than 3.14 is. Pi is irrational. That is, the decimal expansion never ends and never repeats, so any number of decimal places we wrote out is an approximation. The approximation 3.14 is about 1/2 percent off from the true value, and the fairly well know 3.141559 is within 0.000084 percent.

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2 years ago

Convert base 10 273 to a base 12

Margaret [11]

The highest power of 12 that divides 273 (with remainder) is $12^2=144$ , and dividing gives

$273=1(144)+129$

Divide the remainder term by the next highest power of 12, $12^1=12$ .

$129=10(12)+9$

So $273_{10}=1a9_{12}$ , since

$273=1\cdot144+10\cdot12+9\cdot1=1\cdot12^2+10\cdot12^1+9\cdot12^0$

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2 years ago