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3 years ago

5. A number m is less than – 3 or greater than or equal to 1.

Mathematics

1 answer:

White raven [17]3 years ago

4 0

Answer:

m < -3 or m ≥ 1

Step-by-step explanation:

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the length of a rectangle is five feet less than its width. If the area of the rectangle is 84 square feet, find its dimensions

KIM [24]

Let
x---------> the length of the rectangle
y--------> the width of the rectangle

we know that
A=84 ft²
[area of rectangle]=x*y-----> 84=x*y-----> equation 1
x=y-5------> equation 2
substitute 2 in 1
84=[y-5]*y-----> 84=y²-5y---------> y²-5y-84=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
y=12
x=y-5-----> x=12-5-----> x=7

the answer is
the length of the rectangle is 7 ft
the width of the rectangle is 12 ft

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3 years ago

Write the word sentence as and equation or inequality A number divided by 7 equals 14

Lerok [7]

<h2>Firstly, we let for the number to be any number or letter.</h2>

So let the number be (x)

Step-by-step explanation:

The above pictures shows working.

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3 years ago

Joseph has a job walking dogs and gets paid per dog. He needs to walk 45 dogs to earn enough money to pay for his soccer team fe

rusak2 [61]

Using proportions, it is found that it will take him 22.5 hours to walk the 45 dogs.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

He walks 3 dogs in 1 hour and 30 minutes, we means that the time in hours it takes for him to walk a dog is:

t = 1.5/3 = 0.5 hours.

Hence the time it will take him to walk 45 dogs is given by:

45 x 0.5 = 22.5 hours.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

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1 year ago

the ratio of red marbles to blue marbles in a bag is 3:4. if there are 42 marbles in the bag, how many of the marbles are red?

AlexFokin [52]

Answer:

Step-by-step explanation:

Sum the parts of the ratio, 3 + 4 = 7

Divide the amount of marbles by 7 to find the value of one part of the ratio

42 ÷ 7 = 6 ← value of 1 part of the ratio, thus

red marbles = 3 × 6 = 18

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3 years ago

What is 60,000 + 3,000 + 20 + 9 in standard form

Zigmanuir [339]

60,000+3,000+20+9 in standard form is 6.3029 x 10^4.

Hope this helps you!
-Hamilton1757

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3 years ago

Read 2 more answers