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3 years ago

PLEASE HELP FOR BRAINLIEST!!!

Mathematics

1 answer:

Ratling [72]3 years ago

5 0

The radius of a circle should be placed in the Z section making the answer A.

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A pole that is 3.2m tall casts a shadow that is 1.54m long. At the same time, a nearby building casts a shadow that is 50.75m lo

Nastasia [14]

3.2m casts 1.54m shadow.

3.2÷1.54= 160/77 (2.077922077922...)

50.75 × 160/77= 105.454545...

105m to the nearest meter.

6 0

3 years ago

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

What is simplI find form of the expression-(4)-2

nevsk [136]

-(4)-2 = -4-2= -6
Hope that helps you

3 0

3 years ago

Help me please i’ll give extra points

vazorg [7]

Answer:

y=1

Step-by-step explanation:

20-18/6-4 = 2/2 = I

Hope this helped

3 0

2 years ago

Read 2 more answers

What are 3 of the 6 essential principles in Jefferson's Inaugural Address?

denpristay [2]

Answer:

He said that the nation had "room enough for our descendants to the thousandth and thousandth generation" and that his administration would pursue "honest friendship with all nations, entangling alliances with none." He affirmed that America's future depended upon "the preservation of the General government

Step-by-step explanation:

6 0

3 years ago