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beks73 [17]
3 years ago
13

4 friends earn $10.40 for washing a car. how each did each friend get

Mathematics
2 answers:
uysha [10]3 years ago
6 0

Answer:

$2.60

Step-by-step explanation:


dezoksy [38]3 years ago
4 0

Answer:

10.40/4=2.60


Step-by-step explanation:


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Winnie wrote the following riddle .I am a number between 60 and 100
arsen [322]
<span>The answer is that 79 IS NOT correct because the riddle says "my ones digit is 2 LESS than my tens digit.." and 79 has 7 in tens and 9 in ones.</span>
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The diameter of a circle is 6.8 m. Find the circumference to the nearest tenth<br>​
matrenka [14]

Answer:

21.4m

Step-by-step explanation:

Circumference : x diameter

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Math question down below
NARA [144]
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Recall that m(t) = (1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500g sample of phosphorus-32 decays
katrin2010 [14]

The question is incomplete, here is the complete question:

Recall that m(t) = m.(1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500 g sample of phosphorus-32 decays to 356 g over 7 days. Calculate the half life of the sample.

<u>Answer:</u> The half life of the sample of phosphorus-32 is 14.28days^{-1}

<u>Step-by-step explanation:</u>

The equation used to calculate the half life of the sample is given as:

m(t)=m_o(1/2)^{t/h}

where,

m(t) =  amount of sample after time 't' = 356 g

m_o = initial amount of the sample = 500 g

t = time period = 7 days

h = half life of the sample = ?

Putting values in above equation, we get:

356=500\times (\frac{1}{2})^{7/h}\\\\h=14.28days^{-1}

Hence, the half life of the sample of phosphorus-32 is 14.28days^{-1}

7 0
3 years ago
solve the linear equation 29 - 3x = 5x + 5 state the property that justifies your step and why you chose it
Debora [2.8K]

Answer:

x=3

Step-by-step explanation:

29-3x=5x+5

29=5x+5+3x

29=8x+5

29-5=8x

24÷8=x

3=x

6 0
3 years ago
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