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3 years ago

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I have 500 pennies. If I spend 6 pennies a day until i can no longer do so, at the end of one of these days i will have exactly

how many pennies left?
A) 6
B)8
C)10
D)12

1 answer:

Monica [59]3 years ago

3 0

A) is 164 because 6 times 6 is 36. 500 - 36 is 164

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It takes Sue, Jeff and Todd 4 hours to paint a room together. If it takes Sue 10 hours by herself and Jeff 12 hours by himself,

diamong [38]

The number of time it would take Todd to paint the room alone is 15 hours.

Let the Todd's time be t.

<u>Given the following data:</u>

Combine time = 4 hours

Sue's time = 10 hours

Jeff's time = 12 hours

To calculate the number of time it would take Todd to paint the room alone:

How to solve a word problem:

In order to solve this exercise, we would first of all calculate their individual rate and combined rate respectively. Finally, we would add their individual rates together and equate it to the combined rate.

<u>For </u><u>Sue</u><u>:</u>

$Rate = \frac{1}{10} \;work/hr$

<u>For </u><u>Jeff</u><u>:</u>

$Rate = \frac{1}{12} \;work/hr$

<u>For </u><u>Todd</u><u>:</u>

$Rate = \frac{1}{t} \;work/hr$

<u>Combined rate:</u>

$Rate = \frac{1}{4} \;work/hr$

Adding the individual rates, we have:

$\frac{1}{10} +\frac{1}{12} +\frac{1}{t} =\frac{1}{4} \\
\\
$

Multiplying all through by 120t, we have:

$12t+10t+120=30t\\
\\
22t+120=30t\\
\\
120=30t-22t\\
\\
120=8t\\
\\
t=\frac{120}{8}$

t = 15 hours.

Read more on word problems here: brainly.com/question/13170908

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2 years ago

Romashka [77]

54+ squared root symbol 29 + squared root symbol 778

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3 years ago

Read 2 more answers

Solve for h.<br> A=3h <br> Can anyone help me?

IgorC [24]

Answer:

h = 3/A

Step-by-step explanation:

A = 3h

Divide both sides by 3 to isolate h:

A/3 = 3h/3

Simplify and get

A/3 = h or h = A/3

Hope this helps!

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2 years ago

Please help with this

Dafna1 [17]

Answer:

697.24 and 886.76

Step-by-step explanation:

792+.92*103= 886.76

792-.92*103= 697.24

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3 years ago

Three nurses attended a seminar for two days. The travel expenses for each nurse were $982. Additional expenses per nurse per da

Vlad [161]

<span>You can just add up the "additional expenses", multiply that by 2 (for the 2 days) and then multiply that by 3 (for the 3 nurses) Then multiply 982 by 3 (for 3 nurses) and all the numbers up

</span><span>I got $8526 as an answer,
</span><span>
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

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3 years ago