Beth walked 3 blocks in 15 minutes. based on this rate, determine if this statement is true or false

Answers

Answer 1

Answer: So I looked up the max size for the width of a block in most American cities, and it said one block can be 660 feet.
Under these circumstances, she's walking 1980 feet.
It takes about 19.5 minutes to walk a mile if you're walking at an average pace of 3.1 miles per hour.
1980 feet is 0.375 miles
19.5 times 0.375 is 7.3125 minutes average.
And that's IF she's walking on three 660 foot wide blocks.

I'd say false, because it would take less time than that

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A pole that is 3.4m tall casts a shadow that is 1.03m long. At the same time, a nearby building casts a shadow that is 41.5mlong. How tall is the building?

Answers

I got that the building is 136.9902912...(nonterminating) meters tall. Or you could round that to 137m tall. I got that by setting up ratios of the height and the shadows, then cross multiplying.

In a population of 1,000 students, 50 were asked by random sampling what their plans were after graduation from high school. Their responses are shown in the table. A 2-column table with 4 rows. Column 1 is labeled Intention with entries College, job, military, no plans. Column 2 is labeled Number of students with entries 27, 13, 2, 8. Using proportional reasoning, make a prediction about how many students you would expect to have plans to attend college. 27 50 = x 1000 27,000 = 50x About would have plans to attend college.

Answers

Answer:

540

Step-by-step explanation:

Answer:

its 540

Step-by-step explanation:

have a amazing day peep's :]

A car traveled at a constant speed for 4 hours and covered 144.6 miles. It used 12 gallons of gas to travel this distance. How far did the car go in 1 hour? How far did the car travel on 1 gallon of gas?

Answers

The car travelled a distance of 36.15 miles in 1 hour. The car travelled a distance of 12.05 miles in 1 gallon of gas.

What is Unitary method ?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Using unitary method to solve the given problem -

It is given that a car traveled at a constant speed for 4 hours and covered 144.6 miles and also it used 12 gallons of gas to travel this distance.

It took 4 hours to travel a distance of 144.6 miles.

For 1 hour at constant speed, the car will travel 144.6/4 miles .

∴ For 1 hour at constant speed the car travels 36.15 miles.

For 12 gallons of gas, the car travels 144.6 miles.

For 1 gallon of gas, the car travels 144.6/12 = 12.05 miles

∴ For 1 gallon of gas, the car travels 12.05 miles.

Thus the car travelled a distance of 36.15 miles in 1 hour. The car travelled a distance of 12.05 miles in 1 gallon of gas.

To learn more about Unitary method, refer -

brainly.com/question/19423643

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1 hour= 36.15 miles
You get this when you divide the # of miles by the # of hours

1 gallon of gas= 12.05 miles
You get this because when you want to get to 1 gallon you just divide the miles it went by the amount of gas it took to get there

9(2n+1) = ___

More question are coming btw

Answers

(9*2n)+(9*1)=18n+9

Does that answer your question?

the answer is 18n+9 and that's okay

-1/2 - 3/5 ?? and in simplest form

Answers

First find common denominators.

-1/2
-3/5

Multiply 5 to numerator and denominator of (-1/2), and 2 to numerator and denominator for (-3/5).

(-1/2)(5/5) - 3/5(2/2)

Simplify:
-5/10 - 6/10

Combine terms.

-5 - 6 = -11

-11/10, or - 1 1/10 is your answer

hope this helps

Simplest form of given expression, $-(1)/(2)-(3)/(5)$ is -11/10

A number that has a whole number and a fractional component separated by a decimal point is a decimal. The decimal point is the dot that appears between the parts of a whole number and a fraction.

Given expression, $-(1)/(2)-(3)/(5)$ can be solved as follows:

Take the LCM of denominator, LCM of 2 and 5 is 10.

Multiply first number by 5 and second number by 2 as follows:

$=-(1* 5)/(2* 5)-(3* 2)/(5*2)\n\n=-(5)/(10)-(6)/(10)\n\n=(-5-6)/(10)\n\n=-11/10$

Thus, $-(1)/(2)-(3)/(5)$ in its simplest form, is -11/10

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Chetan and his 5 siblings buy a present for their mother on Mother's Day. As the eldest brother, he pays 0.2 of the cost of the present. The rest of the siblings share the balance equally. Each sibling pays $9.50 less than Chetan. What is the cost of the present.

Answers

Let's say that X is what the other 5 siblings pay. X + $9.50 is what Chetan pays. X + $9.50 is 1/5 of the cost of the present. To solve this we have to do 0.8 divided by 5 (the remaining cost split between 5 people) which is 0.16. Now from this we can learn that $9.50 is 0.04 of the cost of the present. A simple way to solve this is do 1.00 divided by 0.04 and then multiply $9.50 by that amount. 1.00 divided by 0.04 is 25 so $9.50 times 25 is $237.5.
The present costs $237.5
As I read over this I may not be correct, however this is how I solved it as an advanced mathematics grade 8 student.

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