a person on a moving sidewalk travels 24 feet in 7 seconds. The moving sidewalk has a length of 180 feet. How long will it take to move from one end to the other

Answers

Answer 1

Answer: (180 / 24) * 7 = 52.5
Think of it like this:
There are 180 feet. 180/24 finds how 24 foot "sections" there are. For each of these 24 foot "sections", you need 7 seconds to cross it, thus the multiplication.

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What is 235,000 rounded to the nearest hundred thousand

Answers

To round to the nearest hindered thousand in 235,000 you would underline the number in the ten thousand place. In this case it's 3. Then you look at the number you've underlined and if it is over 5 then you round the miner in front of it up by 1 if it is under 5 then you leave it the same and all the numbers after it becomes zeros

Frank lives 6 miles away from school. If he rode his bike 7/8 miles and walked the rest, how many miles did he ride his bike?

Answers

we need to find 7/8 of 6. to do this we multiply them together. we write 6 as 6/1 and multiply across to get 42/8 or 5 2/8 simplified to 5 1/4 as a mixed fraction. Frank rode his bike 5 1/2 miles to school

Decrease 5 1/4 m by 50 cm. Answer has to be m.

Answers

Answer:

$4(3)/(4)$ m

Step-by-step explanation:

1 meter = 100 centimeters

50 cm = $(50)/(100) m$

50 cm = $(1)/(2) m$

Original length = $5(1)/(4)=(21)/(4) m$

Decrease the original length by 50 cm

So, Length = $(21)/(4) -(1)/(2)$

= $(21-2)/(4)$

= $(19)/(4)$

= $4(3)/(4)$

Hence new length is $4(3)/(4)$ m

5 1/4 m is 5.25m. 50cm is 0.5m.
So 5.25 - 0.5 = 4.75m, or 4 3/4 m as a fraction

In a coin puzzle, guantity refers to the

Answers

Answer:

Number of coins.

Step-by-step explanation:

You mean quantity?

The amount of or number of items (in this case coins).

Balancing items -often coins- to determine which holds a different value, by using balance scales a limited number of times

How many sides and right angle and parallel sides a triangle had

Answers

-- Every triangle has three (3) sides and three angles.
If it doesn't, then it's not a triangle.

-- A triangle can have one right angle, and no more than one. But it
doesn't need to have one, and triangles don't always have one.

-- A triangle never has any parallel sides.

Find the mean absolute deviation. Round to the tenth

Answers

Answer:

1) 1.8 round to tenths

Step-by-step explanation:

To find the mean absolute deviation we follow these steps:

Find the mean value by adding all data values and dividing by number of data values
Find the absolute value of the difference between each data value and the mean: | data value – mean. |
Divide the sum of the absolute values of the differences by the number of data values

1) 4,5,10,8,4,8,7,6

step 1

4+5+10+8+4+8+7+6 / 8 = 6.5

Mean (μ): 6.5

step 2

|4-6.5| + |5-6.5| + |10-6.5| + |8-6.5| + |4-6.5| + |8-6.5| +|7-6.5| + |6-6.5| = 14

step 3

14 / 8 = 1.75

Repeat these steps for other parts.

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