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2 years ago

Bette had 280 kilograms of bolts and put the same amount into each of 8 boxes. How

Mathematics

1 answer:

Elenna [48]2 years ago

4 0

Answer:

Step-by-step explanation:

You have to divide 280 by 8 and that's how you get it.

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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.

Given the following data:

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.

For Sue:

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

For Jeff:

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

For Todd:

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

Combined rate:

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

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

5 0

2 years ago

A coin is biased to show 39% heads and 61% tails. The coin is tossed twice. What is the probability that the coin turns up tails

julia-pushkina [17]

I'm pretty sure that this is a trick question, the answer is 61%.

7 0

3 years ago

PLEASE HELP ASAP:))))))))!!!!!!!!!!!!

ch4aika [34]

Answer:

6-pack for 3.12

Step-by-step explanation:

Find unit price

2.24/4=0.56

3.00/3=1

4.24/8=0.53

3.12/6=0.52

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2 years ago

Read 2 more answers

A full container of juice holds 64 fluid ounces.How many 7 fluid ounce servings of juice are in a full container?

choli [55]

There is 9 serving of 7 fluid ounces with a remainder of 1 fluid ounce

if you meant 8 fluid ounce servings then it would be 8 servings with no remainder

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2 years ago

Find the missing values. 15. F= 16. E= 17. D= 1319 d e

svetlana [45]

15.F=49
16.E=131
17.D=49

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2 years ago